110 lines
3 KiB
C
Executable file
110 lines
3 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
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/*
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* TODO: Add test description.
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*/
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#include <kunit/test.h>
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#include <kunit/mock.h>
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/*
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* This is the most fundamental element of KUnit, the test case. A test case
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* makes a set EXPECTATIONs and ASSERTIONs about the behavior of some code; if
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* any expectations or assertions are not met, the test fails; otherwise, the
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* test passes.
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*
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* In KUnit, a test case is just a function with the signature
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* `void (*)(struct test *)`. `struct test` is a context object that stores
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* information about the current test.
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*/
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#ifdef CONFIG_UML
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/* NOTE: UML TC */
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static void ${test_prefix}_bar(struct test *test)
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{
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/* Test cases for UML */
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return;
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}
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#else
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/* NOTE: Target running TC must be in the #ifndef CONFIG_UML */
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static void ${test_prefix}_foo(struct test *test)
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{
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/*
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* This is an EXPECTATION; it is how KUnit tests things. When you want
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* to test a piece of code, you set some expectations about what the
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* code should do. KUnit then runs the test and verifies that the code's
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* behavior matched what was expected.
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*/
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EXPECT_EQ(test, 1, 2); // Obvious failure.
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}
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#endif
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/*
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* This is run once before each test case, see the comment on
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* example_test_module for more information.
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*/
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static int ${test_prefix}_init(struct test *test)
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{
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return 0;
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}
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/*
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* This is run once after each test case, see the comment on example_test_module
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* for more information.
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*/
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static void ${test_prefix}_exit(struct test *test)
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{
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}
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/*
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* Here we make a list of all the test cases we want to add to the test module
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* below.
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*/
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static struct test_case ${test_prefix}_cases[] = {
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/*
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* This is a helper to create a test case object from a test case
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* function; its exact function is not important to understand how to
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* use KUnit, just know that this is how you associate test cases with a
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* test module.
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*/
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#ifdef CONFIG_UML
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/* NOTE: UML TC */
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TEST_CASE(${test_prefix}_bar),
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#else
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/* NOTE: Target running TC */
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TEST_CASE(${test_prefix}_foo),
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#endif
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{},
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};
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/*
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* This defines a suite or grouping of tests.
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*
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* Test cases are defined as belonging to the suite by adding them to
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* `test_cases`.
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*
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* Often it is desirable to run some function which will set up things which
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* will be used by every test; this is accomplished with an `init` function
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* which runs before each test case is invoked. Similarly, an `exit` function
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* may be specified which runs after every test case and can be used to for
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* cleanup. For clarity, running tests in a test module would behave as follows:
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*
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* module.init(test);
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* module.test_case[0](test);
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* module.exit(test);
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* module.init(test);
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* module.test_case[1](test);
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* module.exit(test);
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* ...;
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*/
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static struct test_module ${test_prefix}_module = {
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.name = "${test_prefix}",
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.init = ${test_prefix}_init,
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.exit = ${test_prefix}_exit,
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.test_cases = ${test_prefix}_cases,
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};
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/*
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* This registers the above test module telling KUnit that this is a suite of
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* tests that need to be run.
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*/
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module_test(${test_prefix}_module);
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