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73 lines
2.1 KiB
73 lines
2.1 KiB
C++ automatic testing similar to JUnit
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Stefan Westerfeld <stw@kde.org>
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What it is:
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===========
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These tests use a little testing framework, which consists currently only
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of the file test.h. It is very much inspired by JUnit (www.junit.org), but it
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is maybe even simpler. But it integrates nicely in Makefile.am automatic
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testing. You can simply type
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make check
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to see if all tests pass. The motivation behind it is, when you are working
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on a large project, it is often impossible to test quickly whether everything
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still works all right after changes (which you should before committing ...).
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This is even more true if you are not working alone on the code.
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With a consistent set of tests that verify whether everything is still all
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right, things like breaking one thing while fixing another can be made less
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likely at least.
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How to add a new set of tests:
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==============================
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1. create a new .cpp file, for this example we'll suppose testarithmetic.cpp
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2. #include "test.h"
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3. create a struct which will hold all your tests
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struct TestArithmetic : public TestCase {
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TESTCASE(TestArithmetic);
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};
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4. if you want to, override the following methods:
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void setUp()
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{
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/*
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* This method is supposed to build a little test world, which will be
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* built for each test method that is executed - the idea is that your
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* tests will use this environment to test in.
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*/
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}
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void tearDown()
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{
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/*
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* This method should completely destroy your test world again, so
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* that for the next test, a fresh one can be created.
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*/
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}
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5. define new tests like this
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TEST(arithmetic) {
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long a = 2;
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long b = 2;
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long c = a+b;
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testAssert(c < 5); // you assert that this condition is true
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testEquals(4,c); // you assert that the first (expected) value
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} // equals the second (computed) value
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6. define a main for your test like this
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TESTMAIN(TestArithmetic);
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7. add the following to the Makefile.am (you may want to add more source files,
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as required)
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testarithmetic_SOURCES = testarithmetic.cpp
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8. add it to check_PROGRAMS
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