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kunit: string-stream-test: Add cases for string_stream newline appending
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> Reviewed-by: Rae Moar <rmoar@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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1 changed files with 93 additions and 0 deletions
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@ -32,6 +32,7 @@ static void string_stream_init_test(struct kunit *test)
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KUNIT_EXPECT_TRUE(test, list_empty(&stream->fragments));
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KUNIT_EXPECT_PTR_EQ(test, stream->test, test);
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KUNIT_EXPECT_TRUE(test, (stream->gfp == GFP_KERNEL));
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KUNIT_EXPECT_FALSE(test, stream->append_newlines);
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KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
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}
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@ -215,6 +216,45 @@ static void string_stream_append_test(struct kunit *test)
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1), stream_2_content);
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}
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/* Appending the content of one string stream to one with auto-newlining. */
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static void string_stream_append_auto_newline_test(struct kunit *test)
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{
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struct string_stream *stream_1, *stream_2;
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/* Stream 1 has newline appending enabled */
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stream_1 = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_1);
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string_stream_set_append_newlines(stream_1, true);
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KUNIT_EXPECT_TRUE(test, stream_1->append_newlines);
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/* Stream 2 does not append newlines */
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stream_2 = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);
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/* Appending a stream with a newline should not add another newline */
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string_stream_add(stream_1, "Original string\n");
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string_stream_add(stream_2, "Appended content\n");
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string_stream_add(stream_2, "More stuff\n");
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string_stream_append(stream_1, stream_2);
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),
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"Original string\nAppended content\nMore stuff\n");
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string_stream_destroy(stream_2);
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stream_2 = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream_2);
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/*
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* Appending a stream without newline should add a final newline.
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* The appended string_stream is treated as a single string so newlines
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* should not be inserted between fragments.
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*/
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string_stream_add(stream_2, "Another");
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string_stream_add(stream_2, "And again");
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string_stream_append(stream_1, stream_2);
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream_1),
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"Original string\nAppended content\nMore stuff\nAnotherAnd again\n");
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}
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/* Adding an empty string should not create a fragment. */
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static void string_stream_append_empty_string_test(struct kunit *test)
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{
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@ -238,12 +278,65 @@ static void string_stream_append_empty_string_test(struct kunit *test)
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream), "Add this line");
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}
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/* Adding strings without automatic newline appending */
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static void string_stream_no_auto_newline_test(struct kunit *test)
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{
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struct string_stream *stream;
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stream = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
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/*
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* Add some strings with and without newlines. All formatted newlines
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* should be preserved. It should not add any extra newlines.
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*/
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string_stream_add(stream, "One");
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string_stream_add(stream, "Two\n");
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string_stream_add(stream, "%s\n", "Three");
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string_stream_add(stream, "%s", "Four\n");
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string_stream_add(stream, "Five\n%s", "Six");
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string_stream_add(stream, "Seven\n\n");
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string_stream_add(stream, "Eight");
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),
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"OneTwo\nThree\nFour\nFive\nSixSeven\n\nEight");
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}
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/* Adding strings with automatic newline appending */
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static void string_stream_auto_newline_test(struct kunit *test)
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{
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struct string_stream *stream;
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stream = alloc_string_stream(test, GFP_KERNEL);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, stream);
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string_stream_set_append_newlines(stream, true);
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KUNIT_EXPECT_TRUE(test, stream->append_newlines);
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/*
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* Add some strings with and without newlines. Newlines should
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* be appended to lines that do not end with \n, but newlines
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* resulting from the formatting should not be changed.
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*/
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string_stream_add(stream, "One");
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string_stream_add(stream, "Two\n");
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string_stream_add(stream, "%s\n", "Three");
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string_stream_add(stream, "%s", "Four\n");
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string_stream_add(stream, "Five\n%s", "Six");
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string_stream_add(stream, "Seven\n\n");
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string_stream_add(stream, "Eight");
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KUNIT_EXPECT_STREQ(test, get_concatenated_string(test, stream),
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"One\nTwo\nThree\nFour\nFive\nSix\nSeven\n\nEight\n");
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}
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static struct kunit_case string_stream_test_cases[] = {
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KUNIT_CASE(string_stream_init_test),
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KUNIT_CASE(string_stream_line_add_test),
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KUNIT_CASE(string_stream_variable_length_line_test),
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KUNIT_CASE(string_stream_append_test),
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KUNIT_CASE(string_stream_append_auto_newline_test),
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KUNIT_CASE(string_stream_append_empty_string_test),
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KUNIT_CASE(string_stream_no_auto_newline_test),
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KUNIT_CASE(string_stream_auto_newline_test),
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{}
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};
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