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authorBrendan Higgins <brendanhiggins@google.com>2019-09-23 02:02:35 -0700
committerShuah Khan <skhan@linuxfoundation.org>2019-09-30 17:35:00 -0600
commit73cda7bb8bfb1d4be0325d76172950ede1a65fd0 (patch)
treed948d1ff9b0b7379327ce1af6b2c058a35f9385b /lib/kunit
parent6b229e593ff9ac2fd8d83c3654e0f39fa1d49a67 (diff)
downloadlinux-73cda7bb8bfb1d4be0325d76172950ede1a65fd0.tar.bz2
kunit: test: add the concept of expectations
Add support for expectations, which allow properties to be specified and then verified in tests. Signed-off-by: Brendan Higgins <brendanhiggins@google.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'lib/kunit')
-rw-r--r--lib/kunit/test.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 68b1037ab74d..3cbceb34b3b3 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -120,6 +120,68 @@ static void kunit_print_test_case_ok_not_ok(struct kunit_case *test_case,
test_case->name);
}
+static void kunit_print_string_stream(struct kunit *test,
+ struct string_stream *stream)
+{
+ struct string_stream_fragment *fragment;
+ char *buf;
+
+ buf = string_stream_get_string(stream);
+ if (!buf) {
+ kunit_err(test,
+ "Could not allocate buffer, dumping stream:\n");
+ list_for_each_entry(fragment, &stream->fragments, node) {
+ kunit_err(test, fragment->fragment);
+ }
+ kunit_err(test, "\n");
+ } else {
+ kunit_err(test, buf);
+ kunit_kfree(test, buf);
+ }
+}
+
+static void kunit_fail(struct kunit *test, struct kunit_assert *assert)
+{
+ struct string_stream *stream;
+
+ kunit_set_failure(test);
+
+ stream = alloc_string_stream(test, GFP_KERNEL);
+ if (!stream) {
+ WARN(true,
+ "Could not allocate stream to print failed assertion in %s:%d\n",
+ assert->file,
+ assert->line);
+ return;
+ }
+
+ assert->format(assert, stream);
+
+ kunit_print_string_stream(test, stream);
+
+ WARN_ON(string_stream_destroy(stream));
+}
+
+void kunit_do_assertion(struct kunit *test,
+ struct kunit_assert *assert,
+ bool pass,
+ const char *fmt, ...)
+{
+ va_list args;
+
+ if (pass)
+ return;
+
+ va_start(args, fmt);
+
+ assert->message.fmt = fmt;
+ assert->message.va = &args;
+
+ kunit_fail(test, assert);
+
+ va_end(args);
+}
+
void kunit_init_test(struct kunit *test, const char *name)
{
spin_lock_init(&test->lock);