2 * Copyright © 2017 Thomas Helland
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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29 #include <gtest/gtest.h>
30 #include "util/string_buffer.h"
33 * \file string_buffer_test.cpp
35 * Test the string buffer implementation
38 #define INITIAL_BUF_SIZE 6
39 class string_buffer
: public ::testing::Test
{
42 struct _mesa_string_buffer
*buf
;
50 virtual void TearDown();
54 string_buffer::SetUp()
59 buf
= _mesa_string_buffer_create(NULL
, INITIAL_BUF_SIZE
);
63 string_buffer::TearDown()
65 /* Finally, clean up after us */
66 _mesa_string_buffer_destroy(buf
);
70 space_left_in_buffer(_mesa_string_buffer
*buf
)
72 return buf
->capacity
- buf
->length
- 1;
75 TEST_F(string_buffer
, string_buffer_tests
)
77 /* The string terminator needs one byte, so there should one "missing" */
78 EXPECT_TRUE(space_left_in_buffer(buf
) == INITIAL_BUF_SIZE
- 1);
80 /* Start by appending str1 */
81 EXPECT_TRUE(_mesa_string_buffer_append(buf
, str1
));
82 EXPECT_TRUE(space_left_in_buffer(buf
) ==
83 INITIAL_BUF_SIZE
- strlen(str1
) - 1);
84 EXPECT_TRUE(strcmp(buf
->buf
, str1
) == 0);
86 /* Add more, so that the string is resized */
87 EXPECT_TRUE(_mesa_string_buffer_append(buf
, str2
));
89 /* The string should now be equal to str3 */
90 EXPECT_TRUE(strcmp(buf
->buf
, str3
) == 0);
92 /* Check that the length of the string is reset when clearing */
93 _mesa_string_buffer_clear(buf
);
94 EXPECT_TRUE(buf
->length
== 0);
95 EXPECT_TRUE(strlen(buf
->buf
) == 0);
97 /* Test a string with some formatting */
98 sprintf(str4
, "Testing formatting %d, %f", 100, 1.0);
99 EXPECT_TRUE(_mesa_string_buffer_printf(buf
, "Testing formatting %d, %f", 100, 1.0));
100 EXPECT_TRUE(strcmp(buf
->buf
, str4
) == 0);
102 /* Compile a string with some other formatting */
103 sprintf(str5
, "Testing formatting %d, %x", 100, 0xDEADBEAF);
105 /* Concatenate str5 to str4 */
108 /* Now use the formatted append function again */
109 EXPECT_TRUE(_mesa_string_buffer_printf(buf
, "Testing formatting %d, %x", 100, 0xDEADBEAF));
111 /* The string buffer should now be equal to str4 */
112 EXPECT_TRUE(strcmp(buf
->buf
, str4
) == 0);
114 _mesa_string_buffer_clear(buf
);
116 /* Test appending by one char at a time */
117 EXPECT_TRUE(_mesa_string_buffer_append_char(buf
, 'a'));
118 EXPECT_TRUE(buf
->length
== 1);
119 EXPECT_TRUE(strcmp(buf
->buf
, "a") == 0);
120 EXPECT_TRUE(_mesa_string_buffer_append_char(buf
, 'a'));
121 EXPECT_TRUE(strcmp(buf
->buf
, "aa") == 0);