CN107239331B - A Synchronous Trigger Execution Method for Parallel Test Tasks - Google Patents

Abstract

The invention discloses a synchronous trigger execution method for parallel test tasks, which belongs to the technical field of test and measurement. The synchronous trigger execution method of the parallel test task proposed by the present invention is based on the synchronous trigger to build the test process control mechanism of each unit under test (Unit Under Test, UUT) test task, which is completed by using the trigger attribute parameter setting and function function call The pre-adjustment and setting of the test process control options, when the user starts the UUT test task through the test task operation interface, all the registered UUT test task application programs can be executed immediately; And the advantage of not being affected by the number of UUT parallel tests is especially applicable to the demand scenario that requires "simultaneous execution" of each UUT test task.

Description

A Synchronous Trigger Execution Method for Parallel Test Tasks

technical field

The invention belongs to the technical field of test and measurement, and in particular relates to a synchronous trigger execution method of parallel test tasks.

Background technique

In recent years, parallel testing technology has attracted much attention in the field of test and measurement and has been more and more widely used. Taking the parallel testing technology adopted in the semiconductor testing industry as an example, the current automatic test equipment (Automatic Test Equipment, ATE)/system (Automatic Test System, ATS) usually uses a test fixture to load a batch of DUTs at a time, and execute these UUT test tasks concurrently (thread or process). These ATE/ATS effectively improve test efficiency and test throughput. However, since the parallel test environment used is mainly a single-processor non-real-time operating system (such as Windows), it is difficult to implement multiple UUT test tasks at the same time in a strict sense, only multi-thread/multi-process within a very short time interval Concurrent processing. The general approach is shown in Figure 1. On the whole, the operating user first starts each UUT test task sequentially through the test task operation interface, and then each UUT test task is executed independently and concurrently without affecting each other, taking up processor time and instrumentation equipment resources in turn. ; Partially, a single UUT test task adjusts the basic information of the test in order and executes various predetermined test actions (including test state setting, signal excitation, signal measurement, data collection, storage records, report generation...) until all test actions are executed , depending on the conditions, replace the next UUT to continue processing, and repeat this cycle until the batch testing of all UUTs is completed. To sum up, it can be said that it is "asynchronous and concurrent execution with overall parallelization, and sequential processing with partial serialization". Obviously, there are deficiencies in the current execution processing method: there is a gradually increasing uncertain time delay between each UUT test task from execution start to execution readiness, and this delay becomes more and more obvious as the number of concurrent UUT test tasks increases, so it cannot Applicable to time-sensitive scenario requirements where multiple UUT test tasks require "simultaneous execution".

Parallel test technology is proposed to solve the problems of low test efficiency and low resource utilization of serial sequential test technology. The traditional serial sequential test can only process one UUT test task at the same time or at the same time interval, while the parallel test technology can "execute" multiple UUT test tasks at the same time. This can not only improve test efficiency and shorten test time, but also reduce the idle waiting state time of each test resource, allowing multiple UUTs to share limited and valuable test resources, effectively saving test costs. At present, the application of parallel test technology is mainly concentrated in the fields of semiconductor production test, software test, communication product protocol conformance test and equipment maintenance test. Domestic research on parallel testing technology is in the ascendant, and relevant research results mainly focus on the architecture, system model and task scheduling of parallel testing systems, and the system theory has not yet been formed.

2.1.1 The concept of parallel test system

The test method adopted by the traditional automatic test system is the sequential test (SequenceTest) based on the serial concept, and its basic idea is shown in Figure 2. When a test task is executed for a UUT, its test actions are processed in advance order, and the subsequent UUT test task cannot be processed until all the actions are processed. If there are multiple UUT test tasks to be executed, they will be processed sequentially according to the preset order, that is, the next UUT test task will be executed only after one UUT test task is processed.

The concept of parallel test system which is different from traditional sequential test is given below.

Definition 1.1 Parallel test system: The processor of the test system processes the test task sequences of multiple test objects input into the system storage device in parallel according to a certain scheduling strategy within the same time interval, and the test system can run multiple tests in the same time period Task. The basis of test task sequence division is to consider factors such as data-independent, resource-independent and control-independent among tasks. Parallel test system is evolved on the basis of traditional serial test system through the integration of resources and the change of software operation mode.

At present, the architecture of the parallel test system can be divided into a single-processor parallel test structure and a multi-processor parallel test structure according to the number of processors used. Among them, the multi-processor parallel test structure has more than two processors, and the test is performed through a high-speed communication bus, a shared storage space or an input/output system, which has higher requirements on software and hardware resources. According to the relationship between multiprocessors, it can be divided into two types: distributed processing structure and master-slave processing structure. Each computer in the distributed parallel test structure can independently and efficiently perform test tasks, and realize test synchronization and resource sharing through a high-speed network; the master-slave processor structure uses a slave processor with a single function in a slave position to Part of the work of the main processor is shared to reduce the burden of the main processor and improve test efficiency. The single-processor parallel test structure is to allocate the time for a single processor to process tasks through the scheduling of different test tasks to achieve parallel testing. The test task exists in the form of multiple threads (Multiple Threads) or multiple processes (Multiple Processes), and the test execution process is completed by switching between threads or processes of a central processing unit (Central Processing Unit, CPU). Comparing the two, the multi-processor parallel test structure has higher requirements on the system hardware and complex structure, while the single-processor parallel test structure has lower hardware requirements and simple structure. Therefore, the single-processor parallel test structure is generally applicable and can effectively reduce the test cost.

2.1.2 Advantages of Parallel Testing Technology

By optimizing the utilization of test resources, the parallel test technology greatly improves the test throughput, improves the utilization rate of test resources, reduces the test time, and effectively saves the test cost. The main manifestations are:

Improve test throughput. The parallel test system realizes the dynamic allocation and optimal scheduling of test resources in various ways, and can execute multiple UUT test tasks concurrently at the same time. From the perspective of batch testing, the efficiency of the entire testing system can be improved by increasing the number of UUTs per unit time. The higher the efficiency of the test system, the higher the improvement in test throughput.

Improve test resource utilization. The improvement of the utilization rate of test resources by parallel testing mainly includes two points, one is to keep the test resources in working state as much as possible, and the other is to make full use of the test resources. Parallel test tasks run continuously to apply for the use of test resources. Once the test resources are idle, they will be applied for by new test tasks again. Ideally, the test resources are always in a working state during the entire test process, that is, the test resources are always in a non-idle state during the entire test process.

Reduce test time. According to statistics, when the sequential test method is adopted, the processor is idle for about 80% of the time. Take the experimental results of TestStand, the test management software of NI (National Instruments) in the United States as an example: under the condition of single-processor multi-thread parallelism, using TestStand software to run the same UUT test task sequence, the time-consuming in parallel test mode is faster than that of serial sequence. The time spent in mode is reduced by about 33%. The test time reduction effect is more obvious.

2.2 Existing Technology Implementation Scheme

2.2.1 Implementation of parallel testing

There are mainly three ways to implement parallel testing: the first is parallel testing for multiple UUTs, and the task scheduling object is each UUT test task, and each UUT corresponds to a UUT test task; the second is multiple UUT testing tasks on a single UUT. The parallel test of a test task, the task scheduling object is multiple test tasks of the same UUT; the third is the combination of the previous two forms, that is, the scheduling object is multiple test tasks of multiple UUTs. In view of the need to avoid problems such as deadlock, competition, and starvation among these test tasks of different scales, the first form is obviously the most simple and direct to implement, and is therefore generally adopted by mainstream mature parallel test software. These parallel testing software include TestStand of American Nl Company, TestBase of American TYX Company, etc., which all provide parallel testing solutions for multiple UUTs, and use UUT as a granular unit for task scheduling.

Take the TestStand software provided by Nl Corporation of the United States as an example. TestStand adopts a parallel test structure based on single processor and multithreading. Its task scheduling adopts the priority-based preemptive scheduling method commonly used in system software design, requiring one UUT to correspond to one test. Sequence, the test sequence priority can be set, and the lock (Lock) object can be used to ensure the exclusiveness of a certain UUT to resources when multiple UUTs compete. TestStand's parallel testing provides two models: batch process model (BatchProcess Model) and parallel process model (Parallel Process Model), as shown in Figure 3. Among them, in the batch process model, a plurality of UUT test tasks are regarded as a group, and it is ensured that the plurality of UUT test tasks in the group start to execute at the same time and wait for the processing to end at the same time. By default, the batch process model does not care about intermediate test action items, and all UUT test action items are completely independent and parallel during execution. In comparison, under the batch process model, the UUT must wait for the slowest UUT test task to complete before the test can be considered as the end. Obviously, the test time in the idle state is longer. The batch process model is mostly used in the field of semiconductor production testing; the application of the parallel process model is more common, and each UUT test task under this model is completely independent and does not affect each other. For a single UUT, its test execution is serially processed in sequence, from the start of the test until all the test actions are executed, and then the next UUT is replaced as appropriate to continue processing. Ideally, there are no problems such as competition and deadlock during test execution, which can greatly improve test efficiency and test throughput.

To sum up, whether it is a batch process model or a concurrent processing model, since the parallel test environment used in the parallel test system is mainly a single-processor non-real-time operating system (such as Windows), plus critical Due to resource constraints, in fact, the current parallel test systems do not really implement "simultaneous execution" of multiple UUT test tasks, but only implement concurrent execution and processing of UUT test tasks within a fixed time interval.

The following describes the parallel test task execution method in the existing parallel test system.

2.2.2 Existing Parallel Test Task Execution Methods

At present, the existing parallel test task execution methods mainly focus on the comprehensive integration of mature technology and shelf software and hardware resources. It can be summed up as "concurrent execution on the whole and serialized sequential processing on the part". The following is an example of the commonly used TestStand software parallel process model (Parallel Process Model): As shown in Figure 1, on the whole, the operating user first uses the test task operation interface to start each UUT test task in turn, and then each UUT test task Independent and concurrent execution, no mutual influence, occupying processor time and instrument equipment resources in turn; from a local point of view, a single UUT test task adjusts the basic information of the test in order and executes various predetermined test actions (including test status settings, signal excitation, signal Measurement, data collection, storage record, report generation...) until all test actions are executed, the next UUT will continue to be processed depending on the user's operating conditions, and the cycle will repeat until the batch test of all UUTs is completed. Obviously, from the point of view of the execution process, this execution method is "asynchronous and concurrent execution with overall parallelization and sequential processing with partial serialization".

Therefore, this parallel test task execution method has shortcomings: there is a gradually increasing uncertain time delay between each UUT test task from startup to ready, and it cannot be applied to the time-sensitive scenario requirements of "simultaneous execution" of each UUT test task. With the increase of UUT parallel scale, the number of concurrent UUT test tasks will inevitably increase, and this uncertain delay phenomenon will become more and more serious!

Existing multiple UUT parallel test task execution processing technology, the operator starts each UUT test task in turn through the software test task operation interface, and then each UUT test task is ready in turn and executed independently and concurrently, taking up processor time and instrumentation equipment resources in turn Complete the relevant test actions. This technology has the following disadvantages:

1. There is an indeterminate time delay between each UUT test task from execution start to functional readiness. Since the parallel test operating environment is a single-processor non-real-time operating system (such as Windows), the technical implementation adopts a multi-process or multi-thread structure, and the processing is completed by switching the processor between processes or threads. Occupies processor CPU time and memory resources, so time delay is inevitable. The sequential start-up processing of UUT test tasks is essentially a process of creating threads or loading processes, and function-ready initialization. The longer the CPU time taken by the start-up process, the greater the amount of time delay for the UUT test task to be ready. At the same time, since the start-up processing process has processor resource competition with other threads or processes, the delay intervals of each UUT test task execution must be uncertain.

2. The requirement scenario of "simultaneous execution" of each UUT test task cannot be realized. "Simultaneous execution" means that each UUT parallel test task must be executed concurrently at the same time or within a very short time interval. The uncertain delay between the execution start and the readiness of the UUT test task will inevitably make it difficult to achieve "simultaneous execution". Moreover, as the number of concurrent UUT test tasks increases, the uncertainty of this time delay becomes more and more obvious. Therefore, the existing technology cannot be applied to the time-sensitive scenario requirements in which multiple UUT test tasks require "simultaneous execution".

Contents of the invention

Aiming at the above-mentioned technical problems existing in the prior art, the present invention proposes a synchronous trigger execution method for parallel test tasks, which is reasonably designed, overcomes the deficiencies of the prior art, and can effectively solve the problem of uncertain execution time delay of UUT test tasks. Problems affected by the number of UUT parallel tests, with good results.

In order to achieve the above object, the present invention adopts the following technical solutions:

A method for synchronously triggering execution of parallel test tasks, comprising the following steps:

Step 1: Design the UUT test task synchronization trigger, and provide the application programming interface of its attribute parameters and function functions;

Step 2: Design the UUT test task operation interface, provide a test status display area and UUT test process control function buttons;

Step 3: Design the test process configuration button of the UUT test task operation interface, and register the callback function to pop up the test process configuration window;

Step 4: Design the test process start button of the UUT test task operation interface, and register the callback function to set the trigger state of all synchronous triggers to the active state in turn;

Step 5: Design the test process stop button of the UUT test task operation interface, and register the callback function to stop the running UUT test task;

Step 6: Design the test process exit button of the UUT test task operation interface, and register the callback function to exit the current human-computer interaction interface;

Step 7: The operating user adjusts and sets the control option parameters of the UUT test process through the UUT test task operation interface;

Step 8: The operating user starts, stops or exits the UUT test task through the UUT test task operation interface.

Preferably, in step 1, the attribute parameters of the synchronization trigger at least include the control handle ID, trigger type, trigger state and trigger action; the function function at least includes creating a trigger, trigger type setting, trigger state setting, trigger action registration and release trigger;

Among them, the control handle ID is a unique value, and it is stipulated that greater than 0 is a normal success state, less than 0 is an abnormal failure state, and equal to 0 means that the trigger has released resources; a single synchronization trigger corresponds to a UUT test task, and passes the control handle ID To perform resource application, parameter configuration, function call and resource release;

The trigger types include at least immediate execution and delayed execution, the delay time can be set, and the time control accuracy is the same as the time delay of concurrent task execution;

The trigger state includes at least two types: active and inactive; in the active state, the trigger action is executed according to the trigger type and re-registration of the trigger action is not allowed; in the inactive state, the trigger action of the trigger is incapable of execution and the registration of the trigger action is allowed;

The trigger action is at least allowed to be specified as a currently valid test action sequence, executable test application or dynamic library mode test application media file, and the trigger action responds immediately to the execution when the trigger is activated and automatically changes the trigger status to invalid after the normal end;

The trigger type is set to immediate execution by default, the trigger state is set to invalid by default, and the trigger action is registered as a UUT test task action sequence by default.

Preferably, in step 2, the test state display area at least includes UUT test basic information, UUT test process status and user operation records; UUT test basic information includes at least the name of the operating user, test time, test environment, test resources and test objects and related attributes; UUT test process status includes UNLOADED, READY, RUNNING, HALTED, FINISH and UNKNOWN; user operation records show that the user passed the UUT test Log information and abnormal error information generated by the task operation interface;

The UUT test process control function buttons include at least a configuration button, a start button, a stop button and an exit button; the configuration button is used to assist the user to set the test process model, the number of concurrent test stations and the UUT test task application program. The test process model provides at least There are three types of sequential process model, parallel process model and batch process model. The concurrent number of test stations is consistent with the concurrent number of UUT test tasks, the concurrent number of UUT test tasks is consistent with the number of triggers, and the UUT test task application is designated as currently valid. The test action sequence, executable test application or dynamic library mode test application media file; the start button is used to assist the user to control the automatic execution of the UUT test task in the background, and update the test process status of each UUT test task; stop The button is used to assist the user to forcibly terminate the running UUT test task; the exit button is used to assist the user to exit the current UUT test task operation interface; the control relationship of the invalid attribute of the function button is set as: when entering the UUT test task operation interface, stop If the button is invalid, it is true, and other buttons are invalid, it is false; after the start button is executed, the stop button is invalid, it is false, and other buttons are invalid, it is true; after the stop button is executed, all buttons are invalid, it is true; the execution of a single UUT test task is completed and the UUT test process is carried out When the status is displayed, if all the UUT test process statuses are not running, the stop button is invalid and the other buttons are invalid and false.

Preferably, in step 3, the test process configuration window control options include at least the test process model, the concurrent number of test stations and the UUT test task application program; when the adjustment is completed and the confirmation is successful and returns to the UUT test task operation interface, it is carried out according to the control option parameters Automatic configuration, trigger creation and trigger attribute parameter setting in sequence according to the concurrent number of test stations, the trigger status is set to invalid, and the trigger action is registered as the selected UUT test task application;

Among them, the test process model provides at least three types of sequential process model, parallel process model and batch process model, and the default is the parallel process model; the concurrent number of test stations corresponds to the concurrent number of UUT test tasks, and the limit value is ≥ 1, less than the maximum UUT Concurrent number, the default value is 4; the UUT test task application is designated as the currently effective test action sequence, executable test application or dynamic library mode test application media file.

Preferably, in step 4, the code execution of the registered callback function is optimized to consume the least amount of time. When the state of a single trigger is set to active, its trigger action is executed immediately. When all triggers are activated in batches, the trigger The UUT test task specified by the action can be executed at the same time.

Preferably, in step 5, specifically include the following steps:

Step 5.1: Determine whether the test process status of each UUT is in operation in turn;

If: the judgment result is that each UUT test process status is not running, then skip the current UUT test process processing;

Or if the judgment result is that each UUT test process state is running, then set the corresponding trigger activation state to be invalid, wait for the UUT test task executed by the background trigger action to exit, and update the test state display synchronously;

Step 5.2: The trigger action of the corresponding trigger responds to the trigger invalid state according to the specific conditions of the test process. When the trigger action is executed, judge whether the trigger state is active, and if so, set the trigger state to invalid;

Step 5.3 judges the trigger action execution return state;

If: the result of the judgment is that the execution of the trigger action returns to a normal state, then the state of the UUT test process is synchronously updated as completed;

Or if the result of the judgment is that the return status of the trigger action execution is abnormal, then the status of the UUT test process is updated synchronously to pause.

Preferably, in step 6, judge whether the trigger state is invalid according to each trigger in turn;

If: the judgment result is that the trigger state is invalid, prompt to wait;

Or if it is judged that the trigger state is valid, each trigger resource and resources related to the UUT test task operation interface are sequentially released.

Preferably, in step 7, the adjustable control option parameters at least include the test process model, the concurrent number of test stations, and the UUT test task application program; the concurrent number of test stations corresponds to the number of triggers, and the UUT test task application program corresponds to the trigger action Corresponding; after the control option parameters are adjusted, if the test process model is a parallel process model, trigger creation and trigger attribute parameter setting are performed according to the number of triggers, in which the trigger type is set to execute immediately, the trigger state is set to invalid, and the trigger action Register as an application for selected UUT test assignments.

Preferably, in step 8, the following steps are specifically included:

Step 8.1: Interact with the man-machine interface during the test process in response to the UUT test task operation interface; if it is executed by the start button, then perform step 8.2; otherwise, continue to idle and wait;

Step 8.2: Set the trigger state of each UUT test task trigger to active, and update the invalid state of all function buttons;

Step 8.3: The trigger actions corresponding to the triggers of each UUT test task are executed according to the preset automatic response, and the functions of each test task are ready;

Step 8.4: Execute the trigger action corresponding to a single UUT test task trigger, that is, adjust the basic information of the UUT test, execute the UUT test task application program of the registered trigger action, and notify the UUT test task operation interface to display the test execution status;

Step 8.5: Respond to the manual intervention of the operating user through the UUT test task operation interface; if it is a stop button operation, update the invalid status of all function buttons, and then perform step 8.7;

Step 8.6: After the trigger action of a single UUT test task is executed, set the trigger status of the current trigger to invalid, prompt and guide the user to determine whether to process the next UUT test task; if the next UUT test task is processed, set the current trigger The trigger state of is active, then go to step 8.3; otherwise, go to step 8.7;

Step 8.7: Update the UUT test process status display and user operation log display;

Step 8.8: Respond to the human-machine interface interaction in the test process of the UUT test task operation interface; if it is executed by the start button, perform step 8.2; if it is executed by the exit button, release each trigger resource and the related resources of the UUT test task operation interface in sequence.

Beneficial technical effects brought by the present invention:

The synchronous trigger execution method for parallel test tasks proposed by the present invention builds a test process control mechanism for each UUT test task based on synchronous triggers, and uses trigger attribute parameter settings and function function calls to complete the pre-adjustment and setting of test process control options , when the user starts the UUT test task through the test task operation interface, all the registered UUT test task application programs can be executed immediately; the present invention has the ability that the execution time delay of the UUT test task can be set stably and is not affected by the number of UUT parallel tests Advantages, it is especially suitable for the demand scenario that requires "simultaneous execution" of various UUT test tasks.

Description of drawings

Figure 1 is a flowchart of the execution of the test task of the DUT.

Figure 2 is a schematic diagram of sequential test task execution.

Fig. 3 is a schematic diagram of a batch process model and a parallel process model.

Fig. 4 is a flowchart of the method of the present invention.

Fig. 5 is a schematic diagram of the action relationship of the method of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

A synchronous trigger execution method for parallel test tasks, its process is shown in Figure 4, and the action relationship is shown in Figure 5, for the requirement scenario of "simultaneous execution" of multiple UUT test tasks, each UUT test task is built based on a synchronous trigger The test process control mechanism uses the trigger attribute parameter setting and function function call to complete the pre-adjustment and setting of the test process control options. When the user starts the UUT test task through the test task operation interface, all registered UUT test task application programs can be executed immediately, thereby effectively improving the delay phenomenon of concurrent execution of UUT test tasks. Specifically include the following steps:

Step 100, designing a UUT test task synchronization trigger, providing attribute parameters and functional function API (Application Programming Interface);

Step 102, designing the UUT test task operation interface, providing a test status display area and UUT test process control function buttons;

Step 104, designing the test process configuration button of the UUT test task operation interface, and registering the callback function as a pop-up test process configuration window;

Step 106, design the test process start button of the UUT test task operation interface, and register the callback function as the trigger state of all synchronous triggers is set to the active state in turn;

Step 108, design the test process stop button of the UUT test task operation interface, and register the callback function to stop the running UUT test task;

Step 110, design the test process exit button of the UUT test task operation interface, and register the callback function to exit the current human-computer interaction interface;

Step 112, the operating user adjusts and sets the control option parameters of the UUT test process through the UUT test task operation interface;

Step 114, the operating user starts, stops or exits the UUT test task through the UUT test task operation interface.

In step 100, specifically include:

a. Use the high-precision clock generator inside the processor and the asynchronous timer or thread pool mechanism provided by the operating system to design synchronous triggers, and provide attribute parameters and function APIs. The attribute parameters at least include the control handle ID, trigger type, trigger state and trigger action, and the function functions at least include creating a trigger, setting the trigger type, setting the trigger state, registering the trigger action, and releasing the trigger;

b. The control handle ID is a unique value. It is agreed that greater than 0 is a normal success state, and less than 0 is an abnormal failure state. Equal to 0 means that the trigger has released resources; a single synchronization trigger corresponds to a UUT test task, and passes the control handle ID To perform resource application, parameter configuration, function call and resource release;

c. The trigger types include at least immediate execution and delayed execution. The delay time can be set, and the time control accuracy is the same as the time delay of concurrent task execution (limited by the counting time accuracy of the processor clock generator);

d. The trigger state includes at least two types: active and inactive. In the activated state, the trigger action is executed according to the trigger type and re-registration of the trigger action is not allowed; in the invalid state, the trigger action of the trigger is incapable of execution and the registration of the trigger action is allowed;

e. The trigger action is at least allowed to be specified as the currently valid test action sequence, executable test application or dynamic library mode test application media file. The trigger action responds immediately to the execution in the trigger activation state and automatically changes the trigger state to invalid after the normal end . It is required to optimize the design of the trigger action, which is not only convenient for quick and automatic execution when triggering ignition, but also allows re-registration as an application program for other UUT test tasks;

f. The trigger type is set to immediate execution by default, the trigger state is set to invalid by default, and the trigger action is registered as a UUT test task action sequence by default.

In step 102, specifically include:

a. The display area includes at least the display of the basic information of the UUT test, the display of the status of the UUT test process and the display of user operation records. The basic information of the UUT test includes at least the operating user, test time, test environment, test resources, and the name and related attributes of the test object; the UUT test process status includes unloaded (UNLOADED), ready (READY), running (RUNNING), paused ( HALTED), completed (FINISH) and unknown (UNKNOWN); user operation records display the log information and abnormal error information generated by the user through the UUT test task operation interface;

b. The function buttons of the UUT test process include at least configuration, start, stop and exit. The configuration button can assist the user to set the test process model, the concurrent number of test stations and the UUT test task application program. The test process model provides at least three types: sequential process model, parallel process model and batch process model. The concurrent number of test stations and UUT Corresponding to the number of concurrent test tasks, the UUT test task application is designated as the currently valid test action sequence, executable test application or dynamic library mode test application media file; the start button can assist the user to control the UUT test task in the background automatically Execute and update the test process status of each UUT test task; the stop button can assist the user to forcibly terminate the running UUT test task; the exit button can assist the user to exit the current UUT test task operation interface. The control relationship of the invalid attribute setting of the function button is designed as follows: when entering the UUT test task operation interface, the stop button is invalid as true, and the other buttons are invalid as false; after the start button is executed, the stop button is invalid as false, and the other buttons are invalid as true; the stop button is invalid After execution, all buttons are invalid and true; when a single UUT test task is executed and the UUT test process status is displayed, if all UUT test process statuses are not running (RUNNING), the stop button is invalid and other buttons are false .

In step 104, it specifically includes: the test process configuration window control options at least include the test process model, the concurrent number of test stations and the UUT test task application program. After the adjustment is completed and the confirmation is successful, when returning to the UUT test task operation interface, it will be automatically configured according to the control option parameters. Create triggers and set trigger attribute parameters in sequence according to the concurrent number of test stations, set the trigger status to invalid, and register the trigger action as the selected UUT test task application;

Among them, the test process model provides at least three types: sequential process model, parallel process model and batch process model, and the default is the parallel process model. The number of concurrent test stations corresponds to the number of concurrent UUT test tasks. The limit value is greater than or equal to 1 and less than the maximum number of concurrent UUTs. The default value is 4. The UUT test task application program can be specified as a currently valid test action sequence, an executable test application program, or a dynamic library mode test application program media file.

In step 106, it specifically includes: the code execution of the registered callback function should be optimized for minimum time consumption, so as to ensure that its execution time consumption is negligible compared with the trigger delay. When the state of a single trigger is set to active, its trigger action can be executed immediately. When all triggers are activated in batches, the UUT test tasks specified by the trigger actions can be executed at the same time, thereby ensuring that the concurrent processing of all UUT test tasks can be completed through the execution of trigger actions of each trigger.

In step 108, specifically include the following steps:

a. Determine in turn whether the test process status of each UUT is RUNNING (running). If not, skip the current UUT test process processing; if so, set the corresponding trigger activation state to be invalid, wait for the UUT test task executed by the background trigger action to exit, and update the test status display synchronously;

b. The trigger action of the corresponding trigger can respond to the trigger invalid state according to the specific conditions of the test process. When the execution of the trigger action ends, judge whether the trigger state is active, and if so, set the trigger state to invalid;

c. If the status returned by the trigger action execution is normal, then synchronously update the UUT test process status to FINISH (completed), otherwise synchronously update the UUT test process status to HALTED (suspended).

In step 110, specifically include:

Determine whether the trigger state is invalid according to each trigger in turn, if so, perform a prompt and wait, otherwise, perform release of related resources.

In step 112, specifically include:

The adjustable control option parameters include at least the test process model, the concurrent number of test stations (corresponding to the number of triggers) and the UUT test task application program (corresponding to the trigger action); after the control option parameters are adjusted, if the test process model is a parallel process model, According to the number of triggers, trigger creation and trigger attribute parameter setting are performed, in which the trigger type is set to execute immediately, the trigger state is set to invalid, and the trigger action is registered as the selected UUT test task application.

In step 114, specifically include the following steps:

a. Man-machine interface interaction in response to the test process of the UUT test task operation interface. If it is executed by the start button, execute b; otherwise, continue to idle and wait;

b. Set the trigger state of each UUT test task trigger to active, and update the invalid state of all function buttons;

c. The trigger actions corresponding to the triggers of each UUT test task are automatically responded and executed according to the preset settings, and the functions of each test task are ready;

d. Trigger action execution processing corresponding to a single UUT test task trigger, that is, adjust the basic information of the UUT test, execute the UUT test task application program of the registered trigger action, and notify the UUT test task operation interface to display the test execution status;

e. Respond to manual intervention by operating users through the UUT test task operation interface. If it is a stop button operation, execute g after updating the invalid state of all function buttons;

f. After the trigger action of a single UUT test task is executed, set the trigger state of the current trigger to invalid, prompt and guide the user to determine whether to process the next UUT test task. If the next UUT test task is processed, set the trigger state of the current trigger to active and execute c; otherwise, continue to execute g;

g. Update the UUT test process status display and user operation log display;

h. Man-machine interface interaction in response to the test process of the UUT test task operation interface. If it is executed by the start button, execute step b; if it is executed by the exit button, release each trigger resource and the related resources of the UUT test task operation interface in sequence.

Of course, the above descriptions are not intended to limit the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or replacements made by those skilled in the art within the scope of the present invention shall also belong to the present invention. protection scope of the invention.

Claims (8)

1. a synchronous trigger execution method of parallel test task, is characterized in that: comprise the steps: Step 1: Design a UUT test task synchronization trigger, and provide the application programming interface of its attribute parameters and function functions; the attribute parameters of the synchronization trigger include at least the control handle ID, trigger type, trigger state and trigger action; the function function includes at least creating a trigger Trigger, trigger type setting, trigger state setting, trigger action registration and release trigger; Among them, the control handle ID is a unique value, and it is stipulated that greater than 0 is a normal success state, less than 0 is an abnormal failure state, and equal to 0 means that the trigger has released resources; a single synchronization trigger corresponds to a UUT test task, and passes the control handle ID To perform resource application, parameter configuration, function call and resource release; The trigger types include at least immediate execution and delayed execution, the delay time can be set, and the time control accuracy is the same as the time delay of concurrent task execution; The trigger state includes at least two types: active and inactive; in the active state, the trigger action is executed according to the trigger type and re-registration of the trigger action is not allowed; in the inactive state, the trigger action of the trigger is incapable of execution and the registration of the trigger action is allowed; The trigger action is at least allowed to be specified as a currently valid test action sequence, executable test application or dynamic library mode test application media file, and the trigger action responds immediately to the execution when the trigger is activated and automatically changes the trigger status to invalid after the normal end; The trigger type is set to immediate execution by default, the trigger state is set to invalid by default, and the trigger action is registered as a UUT test task action sequence by default; Step 2: Design the UUT test task operation interface, provide a test status display area and UUT test process control function buttons; Step 3: Design the test process configuration button of the UUT test task operation interface, and register the callback function to pop up the test process configuration window; Step 4: Design the test process start button of the UUT test task operation interface, and register the callback function to set the trigger state of all synchronous triggers to the active state in turn; Step 5: Design the test process stop button of the UUT test task operation interface, and register the callback function to stop the running UUT test task; Step 6: Design the test process exit button of the UUT test task operation interface, and register the callback function to exit the current human-computer interaction interface; Step 7: The operating user adjusts and sets the control option parameters of the UUT test process through the UUT test task operation interface; Step 8: The operating user starts, stops or exits the UUT test task through the UUT test task operation interface. 2. The synchronous trigger execution method of parallel test tasks according to claim 1, characterized in that: in step 2, the test status display area at least includes UUT test basic information, UUT test process status and user operation records; UUT test basic The information includes at least the operating user, test time, test environment, test resources, and the name and related attributes of the test object; the UUT test process status includes unloaded, ready, running, paused, completed and unknown; user operation records show that the user passed the UUT Log information and abnormal error information generated by the test task operation interface; The UUT test process control function buttons include at least a configuration button, a start button, a stop button and an exit button; the configuration button is used to assist the user to set the test process model, the number of concurrent test stations and the UUT test task application program. The test process model provides at least There are three types of sequential process model, parallel process model and batch process model. The concurrent number of test stations is consistent with the concurrent number of UUT test tasks, the concurrent number of UUT test tasks is consistent with the number of triggers, and the UUT test task application is designated as currently valid. The test action sequence, executable test application or dynamic library mode test application media file; the start button is used to assist the user to control the automatic execution of the UUT test task in the background, and update the test process status of each UUT test task; the stop button It is used to assist the user to forcibly terminate the running UUT test task; the exit button is used to assist the user to exit the current UUT test task operation interface; the control relationship of the invalid attribute of the function button is set as: when entering the UUT test task operation interface, the stop button Invalid is true, other buttons are invalid is false; after the start button is executed, the stop button is invalid is false, other buttons are invalid is true; after the stop button is executed, all buttons are invalid is true; single UUT test task execution is completed and UUT test process status When displaying, if all the UUT test process statuses are not running, the stop button is invalid as true, and the other buttons are invalid as false. 3. the synchronous trigger execution method of parallel test task according to claim 1 is characterized in that: in step 3, test process configuration window control option at least includes test process model, test station concurrent number and UUT test task application program ; After the adjustment is completed and the confirmation is successful, when returning to the UUT test task operation interface, the automatic configuration is performed according to the control option parameters, and the trigger creation and trigger property parameter settings are performed in sequence according to the concurrent number of test stations. The trigger status is set to invalid, and the trigger action is registered as Selected UUT test task application; Among them, the test process model provides at least three types of sequential process model, parallel process model and batch process model, and the default is the parallel process model; the concurrent number of test stations corresponds to the concurrent number of UUT test tasks, and the limit value is ≥ 1, less than the maximum UUT Concurrent number, the default value is 4; the UUT test task application is designated as the currently effective test action sequence, executable test application or dynamic library mode test application media file. 4. The synchronous trigger execution method of parallel test tasks according to claim 1, characterized in that: in step 4, the code execution of the registered callback function is optimized for minimum time consumption, when the state of a single trigger is set to active When the trigger action is activated, the trigger action will be executed immediately. When all the triggers are activated in batches, the UUT test task specified by the trigger action can be executed simultaneously. 5. The synchronous trigger execution method of parallel test tasks according to claim 1, characterized in that: in step 5, specifically comprising the following steps: Step 5.1: Determine whether the test process status of each UUT is in operation in turn; If: the judgment result is that each UUT test process status is not running, then skip the current UUT test process processing; Or if the judgment result is that each UUT test process state is running, then set the corresponding trigger activation state to be invalid, wait for the UUT test task executed by the background trigger action to exit, and update the test state display synchronously; Step 5.2: The trigger action of the corresponding trigger responds to the trigger invalid state according to the specific conditions of the test process. When the trigger action is executed, judge whether the trigger state is active, and if so, set the trigger state to invalid; Step 5.3 judges the trigger action execution return state; If: the result of the judgment is that the execution of the trigger action returns to a normal state, then the state of the UUT test process is synchronously updated as completed; Or if the result of the judgment is that the return status of the trigger action execution is abnormal, then the status of the UUT test process is updated synchronously to pause. 6. the synchronous trigger execution method of parallel test task according to claim 1 is characterized in that: in step 6, judge whether trigger state is invalid according to each trigger successively; If: the judgment result is that the trigger state is invalid, prompt to wait; Or if it is judged that the trigger state is valid, each trigger resource and resources related to the UUT test task operation interface are sequentially released. 7. The synchronous trigger execution method of parallel test task according to claim 1 is characterized in that: in step 7, adjustable control option parameters at least include test process model, test station concurrent number, UUT test task application program; The concurrent number of test stations corresponds to the number of triggers, and the UUT test task application program corresponds to the trigger action; after the control option parameters are adjusted, if the test process model is a parallel process model, trigger creation and trigger attributes are performed according to the number of triggers Parameter settings, where the trigger type is set to execute immediately, the trigger state is set to invalid, and the trigger action is registered as the selected UUT test task application. 8. The synchronous trigger execution method of parallel test tasks according to claim 1, characterized in that: in step 8, specifically comprising the following steps: Step 8.1: Interact with the man-machine interface during the test process in response to the UUT test task operation interface; if it is executed by the start button, then perform step 8.2; otherwise, continue to idle and wait; Step 8.2: Set the trigger state of each UUT test task trigger to active, and update the invalid state of all function buttons; Step 8.3: The trigger actions corresponding to the triggers of each UUT test task are executed according to the preset automatic response, and the functions of each test task are ready; Step 8.4: Execute the trigger action corresponding to a single UUT test task trigger, that is, adjust the basic information of the UUT test, execute the UUT test task application program of the registered trigger action, and notify the UUT test task operation interface to display the test execution status; Step 8.5: Respond to the manual intervention of the operating user through the UUT test task operation interface; if it is a stop button operation, update the invalid status of all function buttons, and then perform step 8.7; Step 8.6: After the trigger action of a single UUT test task is executed, set the trigger status of the current trigger to invalid, prompt and guide the user to determine whether to process the next UUT test task; if the next UUT test task is processed, set the current trigger The trigger state of is active, then go to step 8.3; otherwise, go to step 8.7; Step 8.7: Update the UUT test process status display and user operation log display; Step 8.8: Respond to the human-machine interface interaction in the test process of the UUT test task operation interface; if it is executed by the start button, perform step 8.2; if it is executed by the exit button, release each trigger resource and the related resources of the UUT test task operation interface in sequence.