JPH01311335A - Program comprehensive ratio measuring system - Google Patents

Abstract

PURPOSE:To omit all tests after correcting a program and to rapidly measure a program comprehensive ratio by adding a trace means calling instruction using the sentence number of an instruction as a parameter to each instruction for program processing, storing all sentence numbers for program processing and forming a table for all the sentence numbers. CONSTITUTION:A source program 100 is assembled by an assembler 10 to form an object program 200A. At that time, a program 200A is positioned immediately prior to one sentence instruction of a program 100, a sentence number for a trace means calling instruction using the sentence number of the instruction as a parameter is added by using an instruction adding means 11 and the added sentence number is written in a space part of the program 200A as a table 250 by using a table forming means 12. Then, a tracing means 20 in a data processor 1 is driven in accordance with a tracing means reading instruction, an area corresponding to the sentence number of the table 250 is traced and the executed result is written in the table 250.

Description

[Detailed description of the invention] [Industrial application field]

This invention is a program! 121m rate measurement system. [Prior Art] Conventionally, in order to measure the coverage rate of a program, a program is executed, the address of the executed instruction is collected using a hardware tracer, etc., and the address is used to determine the executed instruction in the program. The coverage rate was calculated from the ratio to all instructions. Also, in program testing! ! ￥J
In order to improve FA performance, unexecuted instructions are displayed by the address of the instruction.

[Problem to be solved by the invention]

Generally, when measuring program coverage, it is impossible to check all the functions of a program in one test, so it is necessary to merge coverage measurement results from multiple tests. However, in the conventional coverage measurement method described above, the executed instructions are stored as addresses, so if the program is modified between tests, the addresses will change, so it is difficult to obtain an accurate am rate. The disadvantage of this method is that it is necessary to perform all tests again after modifying the program, which takes a lot of time. [Means for Solving the Problems] The program tyJm rate measuring system of the present invention includes an instruction adding means for adding a trace means calling instruction with the statement number of the instruction as a parameter to each instruction of program processing. , an assembler comprising: a table creation means for creating a table having an area in which full text numbers of program processing are stored and information indicating that the instruction of the statement number has been executed is stored for each statement number; an external storage device; When a program assembled by the assembler is executed, an area that is called by the trace means call instruction and stores information indicating that the instruction of the statement number in the table corresponding to the statement number specified as a parameter has been executed. tracing means for recording that the instruction with the statement number has been executed;
11. Storing the table in which the instruction execution information is stored in the external storage means as a trace result; 11. a statement in the table that corresponds to a statement number that is recorded as having been executed in the trace result stored in the external storage device and that exists in the table at that time; a data processing device including a merging means for recording the fact that the command of the statement number has been executed in an area storing the fact that the command of the number has been executed; and an editing output means for editing and outputting the contents of the table; have.

[For use]

When a program is executed, the tracing means stores information indicating that the instruction of the statement number has been executed in a table having an area that stores information indicating that the instruction of the statement number has been executed corresponding to the full text number of the program process. , the table is written to an external storage device as a trace result, the trace result is recorded in the table by the merging means at the next test, and the contents of the table are edited and output by the edit output means, so that multiple tests can be performed. Even if the program is modified in between, the skewers can be accurately measured after the program is modified without having to perform all tests again. [Example] Next, an example of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the program coverage measurement system of the present invention, FIG. 2 is a diagram showing a first example of the contents of the source program 100 shown in FIG. 1, and FIG. A fourth diagram showing a second example of the contents of the source program 100.
This figure shows the contents of an object program obtained by assembling the source program 100A of FIG. 2, and FIG. 5 shows the contents of an object program obtained by assembling the source program 100B of FIG. 3. This program coverage measurement system includes an assembler 10, a data processing bag [1, an external storage device 2, and a printing device 3. 1 includes a tracing means 20, a merging means 30, an indenting means 40, and an editing output means 50. The assembler 10 assembles the source program 100 and creates an object program 20.
0 is created, but at this time the object program 20
0, the instruction adding means 11 adds a trace means calling instruction with the statement number of the instruction as a parameter for each instruction of the program processing, and the table creation means 12 stores the full text of each program processing. The data processing device 1 loads and executes the object program 200, which creates a table 250 having an area for each statement number to store information indicating that the instruction of that statement number has been executed. When a tracing means calling instruction in a program is executed, the tracing means 20 stores information indicating that the instruction corresponding to the statement number specified as a parameter in the table 250 in the object program 200 has been executed. It records in the area that the instruction with that statement number was executed. 1: The J embedding means 40 stores the table 250 in which instruction execution is recorded as a trace result in the external storage device 2 connected to the data processing device l. If the trace results of the program are stored in the external storage device 2 after the execution of the object program 200 is completed,
The statement number is recorded as being executed in the trace result stored in the table 250, and the area corresponding to the statement number existing in the table 250 at that time indicates that the instruction with that statement number was executed. The recording zero editing output means 50 edits the contents of the table 250 and outputs it as a coverage measurement result to the printing device 3 connected to the data processing device 1. Next, the operation of this embodiment will be described with respect to the source program 100A having the content shown in FIG. 2 as a specific program content. The source program 100A is assembled by the assembler 10, and an object program 20OA (shown in 21-monic code, the same shall apply hereinafter) shown in FIG. 4 is created. This object program 20
Immediately before the one-sentence command of the source program 100A, the trace means call command CALLTTT (statement number) is added to the OA by the command adding means 11, with the statement number of that command as a parameter, and the full text number of the process and the The table creation means 12 stores a table 250 in which a blank is stored in an area where execution is recorded corresponding to each statement number.
is created by. Object program 20
OA is executed as a first test for the case of A<O, and the trace means 20 is called by a trace means call instruction, and the trace means 20 reads statement number 1 of the table 250.
Record the fact that it was executed in the area corresponding to 0, and write statement number 1.
A is compared with 0 by the command 0, the trade means 20 is called by the trace means call command, the trace means 20 records the fact that it has been executed in the area corresponding to the statement number 20 of the table 250, and then the statement number At instruction 20, the above comparison shows that A is smaller than O, so a branch is made to the instruction with name X. When the program 200A ends in this way, table 2
In 50, the fact that the instruction was executed is recorded in the area where it is stored that the instruction corresponding to the statement number where the instruction was executed is stored (shown as table 25OA in Table 1).Table 1 Table 2 Table 3 Table 4 Since this is the first test and the trace results are not stored in the external storage device 2, the merging means 30 uses the table 25.
0 is not recorded, and the aging means 40 is stored in the table 25.
The OA (Table 1) is obtained as a trace result in the external storage device 2, and the editing output means 50 edits the table 250A as a coverage measurement result (Table 4 shows the coverage measurement result A. However, Table 4 shows that the command is The case where only five instructions numbered 10 to 50 are present is shown) and output to the printing device 3. Next, before the second test, the source program 100A
(FIG. 2) is modified to the source program 100B shown in FIG. 3. Source program 1
00B (FIG. 3) is an object program 200B assembled by the assembler 10 and shown in FIG.
is created. The object program 200B is 2
The second test is executed for the case of A>1, and when it is finished, the fact that the instruction was executed is recorded in the area in the table 250 where it is stored that the instruction corresponding to the statement number where the instruction was executed is stored. (Table 2 shows table 250B.
Since the trace result (shown as 1) of the first test (table 25OA shown in Table 1) is stored in the external storage device 2, the merging means 30 is executed on this trace result (table 25OA shown in Table 1). It is recorded that the instruction was executed, and the area corresponding to statement numbers 20 and 50 existing in table 250I31 (Table 2) stores information that the instruction with that statement number was executed. Please record this in table 250 [32
Shown as ) The aging means 40 is the table 250B2
(Table 3) is stored in the external storage device 2 as the trace result, and the editing output means 50 edits the table 250B2 as the coverage measurement result (Table 5 shows the coverage measurement result B. However, Table 5 shows that the command is (A case is shown in which only six instructions numbered 11 to 50 exist) and are output to the printing device 3. Coverage rate measurement result B (Table 5) in the second test includes 1
The first test result (table 25OA) is accurately reflected, and accurate coverage measurement results can be obtained without performing the first test again. [Effects of the Invention] As explained above, the present invention adds a trace means call instruction with the statement number of the instruction as a parameter to each instruction of program processing in an assembler, and also adds the trace means call instruction with the statement number of the instruction as a parameter. A table is created in which a number is stored and an area is stored to indicate that an instruction has been executed for each statement number, and in the data processing device,
When a program assembled by the assembler is executed, the trace means called by the trace means call instruction records the fact that an instruction has been executed in the area in the table corresponding to the statement number specified as a parameter. , the embedding means obtains the table as a trace result in the external storage device, and the merging means obtains the statement number recorded as being executed in the trace result stored in the external storage device and in the table at that time. By recording the fact that the instruction has been executed in the area corresponding to the existing statement number, and by having the editing output means edit and output the contents of the table, when performing multiple tests, it is possible to Even if the program is modified in between, it is not affected by address changes, so there is no need to perform all tests after the program is modified, and the effect is that accurate program coverage can be measured in a short time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the program 1) 2+ rate measurement system of the present invention, FIG. 2 is a diagram showing a first example of the contents of the source program 100 shown in FIG. 1, and FIG. 1
FIG. 4 is a diagram showing a second example of the contents of the source program 100 shown in FIG.
The figure shows the contents of an object program obtained by assembling seven source programs 100B of FIG. 3. 1... Data processing device, 2... External record + fX device, 3... Printing device, 10.
...Assembler, 11... Instruction adding means, 12... Table creation means, 20... Trace means, 30... Merging means, 40 ...Writing means, 50...
...Editing output means! 00...Source program, 200...Object execution program, 250...Table.

Claims (1)

[Scope of Claims] 1. An instruction adding means for adding a trace means calling instruction with a statement number of the instruction as a parameter to each instruction of the program processing, and a full text number of the program processing is stored. an assembler including a table creation means for creating a table having an area for storing, for each statement number, information indicating that the instruction of the statement number has been executed; an external storage device; and when a program assembled by the assembler is executed; The fact that the instruction of the statement number in the table that is called by the trace means call instruction and that corresponds to the statement number specified as a parameter is stored is stored in the area that indicates that the instruction of the statement number has been executed. a tracing means for recording;
writing means for writing the table storing information indicating that the instruction has been executed into the external storage means as a trace result;
An instruction with a statement number in the table corresponding to a statement number whose execution is recorded in the trace result stored in the external storage device and which exists in the table at that time is executed. A program coverage rate comprising a merging means for recording the fact that the instruction of the statement number has been executed in an area where the fact that the instruction of the statement number has been executed is stored, and a data processing device including an editing output means for editing and outputting the contents of the table. measurement system.