CN101968770A - Reusable embedded software testing and developing method and system - Google Patents

Reusable embedded software testing and developing method and system Download PDF

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Publication number
CN101968770A
CN101968770A CN 201010526821 CN201010526821A CN101968770A CN 101968770 A CN101968770 A CN 101968770A CN 201010526821 CN201010526821 CN 201010526821 CN 201010526821 A CN201010526821 A CN 201010526821A CN 101968770 A CN101968770 A CN 101968770A
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test
software
information
realistic
embedded software
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殷永峰
刘斌
张国良
倪红英
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Beihang University
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Beihang University
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Abstract

The invention relates to a reusable embedded software testing and developing method and a reusable embedded software testing and developing system. The method comprises the following steps of: loading a test scheme; configuring a test environment; building a crosslinked environment model, and generating the information of the crosslinked equipment simulation model; organizing a test process through the development of a test script, selecting a test script language and generating a test script; using a test panel plug-in to allow a user to build a test display panel by drawing in a way of a visual virtual instrument; using a test task management plug-in to flexibly organize the information, such as a simulation model file, a test script file, a test panel file and the like, for each test in a test unit way; and generating the description of the test configuration information and test data based on an XML format, namely, loading the generated test configuration information and test data in the XML format onto a specific test platform. The method and the system can drive a test process to finish automation test of the embedded software.

Description

A kind of reusable embedded software test development approach and system
Technical field
The present invention relates to embedded software test field, test development and Test Design field.
Background technology
In recent years, along with the widespread use of embedded computer, the application scale of embedded software is in continuous growth, and this is mainly reflected in:
1, the size of code of embedded software increases gradually.For example, the airborne software of U.S. F22 fighter plane has reached more than 200 ten thousand line statements, and the situation of domestic air mail equipment is also similar, China newly develops in the military aircraft of research and development, its flight control system, fire control system, engine fuel regulating system, even ejection life-saving system etc. all adopted by software and realizes its control function, progressively replaced original machinery, hydraulic pressure or optical device, newly grind in the aircraft at some, airborne software has surpassed 1,000,000 row source codes.
2, numerous embedded systems often need collaborative work, constitute a big system.For example, the airborne embedded computer quantity in China's new fighter has surpassed 100, needs mutual mass data collaborative work each other.
Follow the continuous growth of scale and the complexity of these embedded systems constantly to increase, the problem that exposes also increases gradually, and increasing sight has been invested the embedded software test field, makes embedded software test become the focus of software test area research.
Because the complicacy of embedded software, in engineering practice, be subjected to the influence of the factors such as characteristics, test resource and test request of tested software, test environment at embedded software also can constantly change, promptly at different tested softwares, even, often all to develop a test environment again at the different test requests of identical tested software, thereby caused the test environment customizations, and the environment of customizations there are the following problems:
1, reusability is low: lack multiplexing consideration in the test environment design, the life of test environment finishes along with end of test (EOT), causes the wasting of resources;
2, reliability is low: because life cycle is short, and special-purpose test environment, itself is mostly without crossing test fully;
3, test weak effect: insecure test environment is difficult to guarantee the correctness and the efficient of test.
For addressing the above problem, an effective method is to adopt the general-purpose built-in type STE, and the general-purpose built-in type STE generally should comprise test development system and test execution system two parts.In order to reach versatility, the test development system need carry out comprehensive demand analysis, but new demand always can constantly be proposed, and can't estimate all pent-up demands in the design, how to allow the capable track demand of test development system change so be necessary research, the present invention addresses the above problem by the test development system with good reusability.
Summary of the invention
At present, lot of domestic and foreign embedded software test development system is special-purpose mostly, can not satisfy the demand of test development system at aspects such as reusability, versatility and maintainabilitys, therefore, reusable embedded software test development system provided by the present invention has solved following several problem:
1, adopts the software frame technology, improve the reusability and the versatility of embedded software test development system, make it to possess good extended capability, for the embedded software test of robotization lays the foundation.
2, development and operation visual test development easy, that easily fast grasp system is so that generate satisfactory test configurations information and test data quickly and easily.
3, the architecture of reply embedded software test development system is analysed in depth, and puts the cold spot and the focus of embedded software test development system in order, solves the key problem in the test development system.
4, the function that should provide the test development system is analysed in depth, to guarantee the engineering adaptability of test development system.
Disclosed by the invention is a kind of reusable embedded software test development system.The present invention introduces the software frame technology of field of software engineering in the design of embedded software test development system, make full use of the modular development scheme of plug-in type framework technology and powerful expanded function, by discerning and define the design of kernel, basic plug-in unit and the application plug-in of embedded software test development system, realized a kind of reusable embedded software test development system.By utilizing this test development system can finish test development work, for the automatic test of embedded software lays the foundation.
The design of this system is based on micro-kernel plug-in type framework technology.At first the embedded software test development system is defined as three-decker, comprises kernel, basic layer plug and application plug-in layer.Wherein kernel has comprised all kernels and the fundamental norms of test development system, the basis layer plug is based upon on the kernel, for the application plug-in in problem-oriented territory provides generic service, and the application plug-in layer before being based upon two-layer on, provide towards the application plug-in of embedded software test exploitation.On the basis of finishing the design of kernel and basic layer plug, manage the analysis and the design of plug-in unit by the test configurations plug-in unit of using layer plug, crosslinked environmental modeling plug-in unit, test script being developed plug-in unit, test panel exploitation plug-in unit and test assignment, thereby finish the design of whole embedded software test development system.
Embedded software test development system proposed by the invention, can utilize the modular development scheme of plug-in type framework technology and powerful expanded function, effectively improve the reusability of embedded software test development system, and offer a kind of visual test development method of tester, thereby finish the preliminary work before the test.
Select the basis of micro-kernel plug-in type framework as the total system design for use, the core of micro-kernel plug-in type framework only provides the plug-in management function, and the exploitation that makes system development compare huge kernel is more prone to, and the envelop of function that each plug-in unit can provide is more extensive.
The design of this system kernel standard and each plug-in unit extension point is adopted and is stored based on universal data format XML (Extensible Markup Language), is convenient to the systemic-function expansion.
Employing comprises the three-decker of kernel, basic layer plug and application plug-in layer, and wherein kernel and basic layer plug are field independences, and the application plug-in layer is directly towards embedded testing development problem territory.
Offer the user and finish the embedded software test exploitation, finish the preceding preliminary work of test easily with easy and simple to handle, easy quick grasp, visual way.
Test configurations information and test data that this system generated are not subject to specific test platform, possess good versatility and maintainability.
This system can finish and comprise embedded software test configuration, crosslinked environmental modeling, test script exploitation, test panel development﹠ testing task management functions, thereby guarantees the integrality of test development work.
The test configurations information and the test data that are generated are stored with generalized markup language XML, and the tester can finish the embedded software automatic test by secondary development.
The invention provides a kind of method of embedded software test exploitation, it comprises the steps:
(1) load testing scheme, described testing scheme is that according to the characteristics and the test request of tested software, the input of clear and definite test development work forms according to the analysis to tested embedded software document;
(2) test environment configuration is configured according to the general parameter of testing scheme to embedded software automatic test environment, so that the adaptive better automatic test platform of the test environment that is generated configuration;
(3) crosslinked environmental modeling is promptly finished the structure of cross-linking apparatus realistic model, generates the information of described cross-linking apparatus realistic model;
(4) test script is developed, and promptly calls the information of described cross-linking apparatus realistic model, and the tested tissue process is selected the test script language for use, generates test script;
(5) test panel exploitation, use test panel plug-in unit allows the user to set up the test display panel by pulling in visual virtual instrument mode;
(6) test assignment management, use test task management plug-in unit is organized each test required realistic model file, test script file, information such as test panel file neatly in the mode of test cell;
(7) generate based on the test configurations information of XML form and the description of test data;
(8) transfer to automatic test platform and carry out, the test configurations information and the test data of the XML form that has soon generated are loaded into the fc-specific test FC platform, can drive test process, finish the automatic test of embedded software.
The method of a kind of embedded software test exploitation provided by the invention, its feature also is:
Tested embedded software document can comprise described in the step (1): Software Requirement Specification, software design document, software interface control document or software user's mannual etc.
Test request described in the step (1) comprises measurable function, performance, security, the interface requirement information of tested software.
The general parameter of embedded software automatic test environment described in the step (2) comprises information such as the setting of system call clock period, bus type and quantity setting, test execution system maximum memory are provided with.
Crosslinked environmental modeling can adopt visual way to finish described in the step (3), and described cross-linking apparatus realistic model information comprises: the connected mode of realistic model sign, realistic model and system under test (SUT), the variable information of realistic model.
The exploitation of test script described in the step (4) is under the visual development environment, according to tester's the free tested tissue process of intention, adopt the structured programming Programming with Pascal Language, and after the programming of finishing described test script, it is carried out syntax check, guarantee the correctness of described test script.
Virtual instrument described in the step (5) comprises that charactron demonstration, pointer dial plate, curve display frame, column show, the ON/OF switch shows, the virtual instrument of drop-down list demonstration.
The invention provides a kind of system of embedded software test exploitation, it is characterized in that comprising:
Be used to load the device of testing scheme, described testing scheme is that according to the characteristics and the test request of tested software, the input of clear and definite test development work forms according to the analysis to tested embedded software document;
Be used for the device of test environment configuration, it is configured according to the general parameter of testing scheme to embedded software automatic test environment, so that the adaptive better automatic test platform of the test environment that is generated configuration;
The device that is used for crosslinked environmental modeling is used to finish the structure of cross-linking apparatus realistic model, generates the information of described cross-linking apparatus realistic model;
Be used for the device of test script exploitation, it calls the information of described cross-linking apparatus realistic model, and the tested tissue process is selected the test script language for use, generates test script;
The device that is used for test panel exploitation, its use test panel plug-in unit allows the user to set up the test display panel by pulling in the mode of visual virtual instrument;
Be used for the device of test assignment management, its use test task management plug-in unit is organized each test required realistic model file, test script file, information such as test panel file neatly in the mode of test cell;
Generation is based on the device of the description of the test configurations information of XML form and test data;
Transfer to automatic test platform and carry out, the test configurations information and the test data of the XML form that has soon generated are loaded into the fc-specific test FC platform, can drive test process, finish the device of the automatic test of embedded software.
According to the system of a kind of embedded software test exploitation provided by the invention, its feature also is:
Described tested embedded software document can comprise: Software Requirement Specification, software design document, software interface control document or software user's mannual etc.
Described test request comprises measurable function, performance, security, the interface requirement information of tested software.
The general parameter of described embedded software automatic test environment comprises information such as the setting of system call clock period, bus type and quantity setting, test execution system maximum memory are provided with.
Described crosslinked environmental modeling can adopt visual way to finish, and described cross-linking apparatus realistic model information comprises: the connected mode of realistic model sign, realistic model and system under test (SUT), the variable information of realistic model.
Described test script exploitation is under the visual development environment, according to tester's the free tested tissue process of intention, adopt the structured programming Programming with Pascal Language, and after the programming of finishing described test script, it is carried out syntax check, guarantee the correctness of described test script.
Described virtual instrument comprises that charactron demonstration, pointer dial plate, curve display frame, column show, the ON/OF switch shows, the virtual instrument of drop-down list demonstration.
Description of drawings
Fig. 1 shows the embedded software test development system surface chart that the present invention develops.
Fig. 2 shows the architecture of embedded software test development system and the design of extension point.
Fig. 3 shows the process of utilizing the present invention to carry out the embedded software test exploitation.
Fig. 4 shows the process flow diagram of crosslinked environmental modeling in the embedded software test exploitation
Fig. 5 shows the process flow diagram of embedded software test script exploitation.
Fig. 6 shows the flow process of embedded software test panel exploitation.
Fig. 7 shows the process flow diagram of embedded software test unit exploitation.
Embodiment
Understand and enforcement the present invention for the ease of those of ordinary skills, the present invention is done further in detail, in depth describes, should be appreciated that enforcement described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention below in conjunction with accompanying drawing.
1. the present invention adopts present field of software engineering newest research results, introduces the software frame technology, and the advantage of performance framework technology aspect modular development scheme and powerful expanded function improves embedded software test development system reusability and extended capability.
2. by adopting the basis of micro-kernel plug-in type framework, make this system development compare huge kernel, be more prone to that the envelop of function that each plug-in unit can provide is more extensive, specifies as follows as the design of embedded software test development system:
1) the embedded software test development system is designed to comprise the three-decker of kernel, basic layer plug and application plug-in layer, based on above-mentioned each layer, the tester can set up expansion plugin according to new demand, or expands new function by the extension point that framework itself provides.
2) in the three-decker, kernel and basic layer plug are field independences, the application plug-in layer is directly towards embedded testing development problem territory, thereby having guaranteed that layer and the interface between the layer are changed only is subject to the influence of being changed layer, has good portability and extensibility.
3) design of system kernel standard and each plug-in unit extension point is adopted and is stored based on generalized markup language XML, is convenient to the systemic-function expansion.
3. according to the functional analysis of general-purpose built-in type software test development system, the application plug-in layer is refined as test configurations plug-in unit, crosslinked environmental modeling plug-in unit, test script exploitation plug-in unit, test panel exploitation plug-in unit and test assignment management plug-in unit, has guaranteed the functional completeness and the versatility of test development system.
4. the test configurations information and the test data of the present invention's generation are stored with generalized markup language XML, and the tester can finish the embedded software automatic test by secondary development.
The concrete workflow of utilizing the present invention to carry out the embedded software test exploitation has been shown among Fig. 3, has specified as follows:
1) load testing scheme F01:
The value-added tax function of testing scheme is realized in this part, it is the foundation of follow-up test development, the prerequisite that realizes this function is according to the analysis to tested embedded software document (as Software Requirement Specification, software design document, software interface control document and software user's mannual etc.), characteristics and test request according to tested software, obtain the information such as measurable function, performance, security, interface requirement of tested software, the input of clear and definite test development work forms testing scheme.
2) test environment configuration F02:
The present invention allows the tester to be configured according to the general parameter of testing scheme to embedded software automatic test environment, as information such as the setting of system call clock period, bus type and quantity setting, test execution system maximum memory are provided with etc., so that the adaptive better automatic test platform of the test environment that is generated configuration.
3) crosslinked environmental modeling F03:
The residing running environment of embedded software is more complicated often, relates to a plurality of cross-linking apparatus, multiple I/O interface and multiple kinds.Crosslinked environmental modeling is the basis of finishing the embedded software closed cycle simulation test, has only the crosslinked environmental simulation of formation system under test (SUT) periphery complete, true to nature, just can finish real-time, closed loop test to system under test (SUT).The invention provides the function of tested embedded software being carried out crosslinked environmental simulation, allow the user to adopt visual way to finish the structure of cross-linking apparatus realistic model, cross-linking apparatus realistic model information spinner will comprise: the connected mode of realistic model sign, realistic model and system under test (SUT), the variable information of realistic model etc.Fig. 4 has provided the process flow diagram of crosslinked environmental modeling in the embedded software test exploitation.
4) test script exploitation F04:
In the embedded software automatic test, test case will finally be converted to the test script that drives test execution.Test script is the formal test case form of expression, can move on the fc-specific test FC platform.The invention provides the visual development environment of test script, can allow the tester is the free tested tissue process of intention according to its, the test script generative process need be called the cross-linking apparatus realistic model information that has generated, and structured programming language commonly used (as C language etc.) can be selected for use in the test script language.In addition, finishing also needs after the Script Programming carry out syntax check to test script, to guarantee the correctness of script.Fig. 5 has provided the process flow diagram of embedded software test script exploitation.
5) test panel exploitation F05:
For the ease of the data in tester's Real Time Observation test process, the invention provides based on the test panel plug-in unit, allow the user to set up the test display panel in visual virtual instrument mode by pulling.The invention provides virtual instrument kind commonly used 9 kinds of virtual instruments such as charactron demonstration, pointer dial plate, curve display frame, column demonstration, the demonstration of ON/OF switch, drop-down list demonstration are arranged.The test panel performance history need be called the cross-linking apparatus realistic model information that has generated, to finish the associated model variable information of each virtual instrument.Fig. 6 has provided the flow process of embedded software test panel exploitation.
6) test assignment management F06:
At specific tested embedded system, the tester tends to generate realistic model file, the test script file of a plurality of crosslinked environment, the test panel file, and once test does not need the above-mentioned file of all generations is all included in the test run scope usually, therefore need carry out orderly organization and management to test assignment.Test assignment management plug-in unit provided by the invention allows the tester to organize each test required realistic model file, test script file, information such as test panel file neatly in the mode of test cell.Fig. 7 has provided the flow process of embedded software test unit exploitation.
7) based on plug-in unit extension specification and the data storage F07 of XML:
XML (Extensible Markup Language) is a kind of generalized markup language.XML provides a kind of structurized metadata to represent method, has platform and characteristics such as semantic independence, opening and extensibility.The present invention is with the kernel standard of embedded software test development system and the design of each plug-in unit extension point, and test configurations information and test data adopt and store based on the mode of XML, improved reusability, versatility and the maintainability of test development system greatly.The XML that table 1 has provided test development system plugin extension specification describes.Table 2 has provided the XML storage format of test configurations information and test data.
The XML of table 1 plug-in unit extension specification describes
The XML storage format of table 2 test data
8) transfer to automatic test platform and carry out F08:
The test of the XML form that has generated is joined Information and test data are loaded into the fc-specific test FC platform, can drive test process, finish the automatic test of embedded software.
Embedded software test development system among the present invention,Following beneficial effect is arranged:
1) durability, versatility and the maintainability of raising embedded software developing system. By introducing micro-kernel plug-in type framework technology,The layering processing is carried out in the design of embedded software test development system, by the design of plug-in unit definition and extension point, can greatly improve durability, versatility and the maintainability of test development system.
2) automatization level of raising embedded software test. The test development stage is the whole of embedded software test preparation, is the most important stage in the embedded software automatic test course, and its specification requirement is the highest, and is consuming time the longest, the invention provides a kind of easy and simple to handle, easily quick that grasp, visualMode finish embedded software test exploitation, automatization level that can the Effective Raise test.
3) improve testing efficiency, reduce testing expense, save testing cost. The present inventionThe embedded software test development system of exploitationHave visual, easy and simple to handle and simpleThe characteristics of seeing are conducive to tester's quick grasp and use. In addition, test development system kernel, plug-in unit Specification Design reachThe detecting information and the test data that generate all adopt generalized markup language XML to store, and also are convenient to tester's quick grasp and skilled the application, thereby improve testing efficiency, reduce testing expense, save testing cost.
4) Important engineering using value is arranged. In view of the present invention derives from practical engineering application, and be successfully applied to actual Software Testing Project, after therefore promotingImportant engineering using value is arranged.

Claims (14)

1. the method for an embedded software test exploitation is characterized in that comprising the steps:
(1) load testing scheme, described testing scheme is that according to the characteristics and the test request of tested software, the input of clear and definite test development work forms according to the analysis to tested embedded software document;
(2) test environment configuration is configured according to the general parameter of testing scheme to embedded software automatic test environment, so that the adaptive better automatic test platform of the test environment that is generated configuration;
(3) crosslinked environmental modeling is promptly finished the structure of cross-linking apparatus realistic model, generates the information of described cross-linking apparatus realistic model;
(4) test script is developed, and promptly calls the information of described cross-linking apparatus realistic model, and the tested tissue process is selected the test script language for use, generates test script;
(5) test panel exploitation, use test panel plug-in unit allows the user to set up the test display panel by pulling in visual virtual instrument mode;
(6) test assignment management, use test task management plug-in unit is organized each test required realistic model file, test script file, information such as test panel file neatly in the mode of test cell;
(7) generate based on the test configurations information of XML form and the description of test data;
(8) transfer to automatic test platform and carry out, the test configurations information and the test data of the XML form that has soon generated are loaded into the fc-specific test FC platform, can drive test process, finish the automatic test of embedded software.
2. according to the method described in the claim 1, it is characterized in that:
Tested embedded software document can comprise described in the step (1): Software Requirement Specification, software design document, software interface control document or software user's mannual etc.
3. according to the method described in the claim 1, it is characterized in that:
Test request described in the step (1) comprises measurable function, performance, security, the interface requirement information of tested software.
4. method according to claim 1 is characterized in that:
The general parameter of embedded software automatic test environment described in the step (2) comprises information such as the setting of system call clock period, bus type and quantity setting, test execution system maximum memory are provided with.
5. method according to claim 1 is characterized in that:
Crosslinked environmental modeling can adopt visual way to finish described in the step (3), and described cross-linking apparatus realistic model information comprises: the connected mode of realistic model sign, realistic model and system under test (SUT), the variable information of realistic model.
6. method according to claim 1 is characterized in that:
The exploitation of test script described in the step (4) is under the visual development environment, according to tester's the free tested tissue process of intention, adopt the structured programming Programming with Pascal Language, and after the programming of finishing described test script, it is carried out syntax check, guarantee the correctness of described test script.
7. method according to claim 1 is characterized in that:
Virtual instrument described in the step (5) comprises that charactron demonstration, pointer dial plate, curve display frame, column show, the ON/OF switch shows, the virtual instrument of drop-down list demonstration.
8. the system of embedded software test exploitation is characterized in that comprising:
Be used to load the device of testing scheme, described testing scheme is that according to the characteristics and the test request of tested software, the input of clear and definite test development work forms according to the analysis to tested embedded software document;
Be used for the device of test environment configuration, it is configured according to the general parameter of testing scheme to embedded software automatic test environment, so that the adaptive better automatic test platform of the test environment that is generated configuration;
The device that is used for crosslinked environmental modeling is used to finish the structure of cross-linking apparatus realistic model, generates the information of described cross-linking apparatus realistic model;
Be used for the device of test script exploitation, it calls the information of described cross-linking apparatus realistic model, and the tested tissue process is selected the test script language for use, generates test script;
The device that is used for test panel exploitation, its use test panel plug-in unit allows the user to set up the test display panel by pulling in the mode of visual virtual instrument;
Be used for the device of test assignment management, its use test task management plug-in unit is organized each test required realistic model file, test script file, information such as test panel file neatly in the mode of test cell;
Generation is based on the device of the description of the test configurations information of XML form and test data;
Transfer to automatic test platform and carry out, the test configurations information and the test data of the XML form that has soon generated are loaded into the fc-specific test FC platform, can drive test process, finish the device of the automatic test of embedded software.
9. the system described in according to Claim 8 is characterized in that:
Described tested embedded software document can comprise: Software Requirement Specification, software design document, software interface control document or software user's mannual etc.
10. the system described in according to Claim 8 is characterized in that:
Described test request comprises measurable function, performance, security, the interface requirement information of tested software.
11. the system according to Claim 8 is characterized in that:
The general parameter of described embedded software automatic test environment comprises information such as the setting of system call clock period, bus type and quantity setting, test execution system maximum memory are provided with.
12. the system according to Claim 8 is characterized in that:
Described crosslinked environmental modeling can adopt visual way to finish, and described cross-linking apparatus realistic model information comprises: the connected mode of realistic model sign, realistic model and system under test (SUT), the variable information of realistic model.
13. the system according to Claim 8 is characterized in that:
Described test script exploitation is under the visual development environment, according to tester's the free tested tissue process of intention, adopt the structured programming Programming with Pascal Language, and after the programming of finishing described test script, it is carried out syntax check, guarantee the correctness of described test script.
14. the system according to Claim 8 is characterized in that:
Described virtual instrument comprises that charactron demonstration, pointer dial plate, curve display frame, column show, the ON/OF switch shows, the virtual instrument of drop-down list demonstration.
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CN107943683B (en) * 2017-10-30 2021-07-30 北京奇虎科技有限公司 Test script generation method and device, electronic equipment and storage medium
CN108121657A (en) * 2017-11-29 2018-06-05 北京京航计算通讯研究所 Programmable logic device software simulation verification system based on system model
CN108595317A (en) * 2017-12-28 2018-09-28 合肥工大高科信息科技股份有限公司 A kind of embedded automated testing method of safety computer of rail transit
CN108595317B (en) * 2017-12-28 2021-06-11 合肥工大高科信息科技股份有限公司 Embedded automatic testing method for rail transit safety computer
CN111190811A (en) * 2019-12-05 2020-05-22 东方微银科技(北京)有限公司 Method, device, equipment and storage medium for testing resource allocation system
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