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As tests are added to kunit, it will become less feasible to execute
all built tests together. By supporting modular tests we provide
a simple way to do selective execution on a running system; specifying
CONFIG_KUNIT=y
CONFIG_KUNIT_EXAMPLE_TEST=m
...means we can simply "insmod example-test.ko" to run the tests.
To achieve this we need to do the following:
o export the required symbols in kunit
o string-stream tests utilize non-exported symbols so for now we skip
building them when CONFIG_KUNIT_TEST=m.
o drivers/base/power/qos-test.c contains a few unexported interface
references, namely freq_qos_read_value() and freq_constraints_init().
Both of these could be potentially defined as static inline functions
in include/linux/pm_qos.h, but for now we simply avoid supporting
module build for that test suite.
o support a new way of declaring test suites. Because a module cannot
do multiple late_initcall()s, we provide a kunit_test_suites() macro
to declare multiple suites within the same module at once.
o some test module names would have been too general ("test-test"
and "example-test" for kunit tests, "inode-test" for ext4 tests);
rename these as appropriate ("kunit-test", "kunit-example-test"
and "ext4-inode-test" respectively).
Also define kunit_test_suite() via kunit_test_suites()
as callers in other trees may need the old definition.
Co-developed-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Knut Omang <knut.omang@oracle.com>
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Acked-by: Theodore Ts'o <tytso@mit.edu> # for ext4 bits
Acked-by: David Gow <davidgow@google.com> # For list-test
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* KUnit test for struct string_stream.
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*
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* Copyright (C) 2019, Google LLC.
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* Author: Brendan Higgins <brendanhiggins@google.com>
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*/
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#include <kunit/test.h>
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#include <linux/slab.h>
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#include "string-stream.h"
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static void string_stream_test_empty_on_creation(struct kunit *test)
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{
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struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
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}
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static void string_stream_test_not_empty_after_add(struct kunit *test)
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{
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struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
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string_stream_add(stream, "Foo");
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KUNIT_EXPECT_FALSE(test, string_stream_is_empty(stream));
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}
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static void string_stream_test_get_string(struct kunit *test)
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{
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struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
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char *output;
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string_stream_add(stream, "Foo");
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string_stream_add(stream, " %s", "bar");
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output = string_stream_get_string(stream);
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KUNIT_ASSERT_STREQ(test, output, "Foo bar");
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}
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static struct kunit_case string_stream_test_cases[] = {
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KUNIT_CASE(string_stream_test_empty_on_creation),
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KUNIT_CASE(string_stream_test_not_empty_after_add),
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KUNIT_CASE(string_stream_test_get_string),
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{}
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};
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static struct kunit_suite string_stream_test_suite = {
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.name = "string-stream-test",
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.test_cases = string_stream_test_cases
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};
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kunit_test_suites(&string_stream_test_suite);
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