On Thu, 24 Aug 2023 at 22:32, Richard Fitzgerald rf@opensource.cirrus.com wrote:
Add test cases for testing the string_stream feature that appends a newline to strings that do not already end with a newline.
string_stream_no_auto_newline_test() tests with this feature disabled. Newlines should not be added or dropped.
string_stream_auto_newline_test() tests with this feature enabled. Newlines should be added to lines that do not end with a newline.
string_stream_append_auto_newline_test() tests appending the content of one stream to another stream when the target stream has newline appending enabled.
Signed-off-by: Richard Fitzgerald rf@opensource.cirrus.com
Changes since V4:
string_stream_append_auto_newline_test() doesn't clear the destination stream_1 between the newline and no-newline case. This is just a simplification of the code.
string_stream_no_auto_newline_test() uses the same set of test strings as string_stream_auto_newline_test().
Much better, thanks!
Reviewed-by: David Gow davidgow@google.com
Cheers, -- David
lib/kunit/string-stream-test.c | 93 ++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+)
diff --git a/lib/kunit/string-stream-test.c b/lib/kunit/string-stream-test.c index 2b761ba01835..2a9936db1b9f 100644 --- a/lib/kunit/string-stream-test.c +++ b/lib/kunit/string-stream-test.c @@ -32,6 +32,7 @@ static void string_stream_init_test(struct kunit *test) KUNIT_EXPECT_TRUE(test, list_empty(&stream->fragments)); KUNIT_EXPECT_PTR_EQ(test, stream->test, test); KUNIT_EXPECT_EQ(test, stream->gfp, GFP_KERNEL);
KUNIT_EXPECT_FALSE(test, stream->append_newlines); KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));} @@ -214,6 +215,45 @@ static void string_stream_append_test(struct kunit *test) KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1), stream_2_content); }
+/* Appending the content of one string stream to one with auto-newlining. */ +static void string_stream_append_auto_newline_test(struct kunit *test) +{
struct string_stream *stream_1, *stream_2;/* Stream 1 has newline appending enabled */stream_1 = alloc_string_stream(test, GFP_KERNEL);KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_1);string_stream_set_append_newlines(stream_1, true);KUNIT_EXPECT_TRUE(test, stream_1->append_newlines);/* Stream 2 does not append newlines */stream_2 = alloc_string_stream(test, GFP_KERNEL);KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);/* Appending a stream with a newline should not add another newline */string_stream_add(stream_1, "Original string\n");string_stream_add(stream_2, "Appended content\n");string_stream_add(stream_2, "More stuff\n");string_stream_append(stream_1, stream_2);KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),"Original string\nAppended content\nMore stuff\n");string_stream_destroy(stream_2);stream_2 = alloc_string_stream(test, GFP_KERNEL);KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);/** Appending a stream without newline should add a final newline.* The appended string_stream is treated as a single string so newlines* should not be inserted between fragments.*/string_stream_add(stream_2, "Another");string_stream_add(stream_2, "And again");string_stream_append(stream_1, stream_2);KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),"Original string\nAppended content\nMore stuff\nAnotherAnd again\n");+}
/* Adding an empty string should not create a fragment. */ static void string_stream_append_empty_string_test(struct kunit *test) { @@ -237,12 +277,65 @@ static void string_stream_append_empty_string_test(struct kunit *test) KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream), "Add this line"); }
+/* Adding strings without automatic newline appending */ +static void string_stream_no_auto_newline_test(struct kunit *test) +{
struct string_stream *stream;stream = alloc_string_stream(test, GFP_KERNEL);KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);/** Add some strings with and without newlines. All formatted newlines* should be preserved. It should not add any extra newlines.*/string_stream_add(stream, "One");string_stream_add(stream, "Two\n");string_stream_add(stream, "%s\n", "Three");string_stream_add(stream, "%s", "Four\n");string_stream_add(stream, "Five\n%s", "Six");string_stream_add(stream, "Seven\n\n");string_stream_add(stream, "Eight");KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),"OneTwo\nThree\nFour\nFive\nSixSeven\n\nEight");+}
+/* Adding strings with automatic newline appending */ +static void string_stream_auto_newline_test(struct kunit *test) +{
struct string_stream *stream;stream = alloc_string_stream(test, GFP_KERNEL);KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);string_stream_set_append_newlines(stream, true);KUNIT_EXPECT_TRUE(test, stream->append_newlines);/** Add some strings with and without newlines. Newlines should* be appended to lines that do not end with \n, but newlines* resulting from the formatting should not be changed.*/string_stream_add(stream, "One");string_stream_add(stream, "Two\n");string_stream_add(stream, "%s\n", "Three");string_stream_add(stream, "%s", "Four\n");string_stream_add(stream, "Five\n%s", "Six");string_stream_add(stream, "Seven\n\n");string_stream_add(stream, "Eight");KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),"One\nTwo\nThree\nFour\nFive\nSix\nSeven\n\nEight\n");+}
static struct kunit_case string_stream_test_cases[] = { KUNIT_CASE(string_stream_init_test), KUNIT_CASE(string_stream_line_add_test), KUNIT_CASE(string_stream_variable_length_line_test), KUNIT_CASE(string_stream_append_test),
KUNIT_CASE(string_stream_append_auto_newline_test), KUNIT_CASE(string_stream_append_empty_string_test),KUNIT_CASE(string_stream_no_auto_newline_test),KUNIT_CASE(string_stream_auto_newline_test), {}};
-- 2.30.2