1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * KUnit test for struct string_stream.
4  *
5  * Copyright (C) 2019, Google LLC.
6  * Author: Brendan Higgins <brendanhiggins@google.com>
7  */
8 
9 #include <kunit/test.h>
10 #include <linux/slab.h>
11 
12 #include "string-stream.h"
13 
14 static void string_stream_test_empty_on_creation(struct kunit *test)
15 {
16 	struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
17 
18 	KUNIT_EXPECT_TRUE(test, string_stream_is_empty(stream));
19 }
20 
21 static void string_stream_test_not_empty_after_add(struct kunit *test)
22 {
23 	struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
24 
25 	string_stream_add(stream, "Foo");
26 
27 	KUNIT_EXPECT_FALSE(test, string_stream_is_empty(stream));
28 }
29 
30 static void string_stream_test_get_string(struct kunit *test)
31 {
32 	struct string_stream *stream = alloc_string_stream(test, GFP_KERNEL);
33 	char *output;
34 
35 	string_stream_add(stream, "Foo");
36 	string_stream_add(stream, " %s", "bar");
37 
38 	output = string_stream_get_string(stream);
39 	KUNIT_ASSERT_STREQ(test, output, "Foo bar");
40 }
41 
42 static struct kunit_case string_stream_test_cases[] = {
43 	KUNIT_CASE(string_stream_test_empty_on_creation),
44 	KUNIT_CASE(string_stream_test_not_empty_after_add),
45 	KUNIT_CASE(string_stream_test_get_string),
46 	{}
47 };
48 
49 static struct kunit_suite string_stream_test_suite = {
50 	.name = "string-stream-test",
51 	.test_cases = string_stream_test_cases
52 };
53 kunit_test_suites(&string_stream_test_suite);
54