projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 70ad1dc8 A |
1 | #include <stdio.h> |
| 2 | #include <unistd.h> | |
| 3 | #include <stdlib.h> | |
| 4 | ||
| 5 | #include <darwintest.h> | |
| 6 | #include "darwintest_utils.h" | |
| 7 | ||
| 8 | #define IS_FLAG_SET(fp, flag) ((fp)->_flags & (flag)) | |
| 9 | #define BUFFER_SIZE(fp) ((fp)->_bf._size) | |
| 10 | ||
| 11 | static FILE* test_setup(void) | |
| 12 | { | |
| 13 | char* temp_dir; | |
| 14 | temp_dir = dt_tmpdir(); | |
| 15 | T_LOG("Temp Dir: %s\n", temp_dir); | |
| 16 | ||
| 17 | char temp_path[128]; | |
| 18 | snprintf(temp_path, sizeof(temp_path), "%s/%s", temp_dir, "test_file"); | |
| 19 | T_LOG("Using Temporary File: %s\n", temp_path); | |
| 20 | FILE* fp = fopen(temp_path, "w"); | |
| 21 | T_LOG("File opened: %d\n", fileno(fp)); | |
| 22 | T_ASSERT_EQ(fileno(fp), 3, "file descriptor matches"); | |
| 23 | // Need to prime the buffer | |
| 24 | fprintf(fp, "Test\n"); | |
| 25 | ||
| 26 | return fp; | |
| 27 | } | |
| 28 | ||
| 29 | T_DECL(envbuf_PR_38637477_unbuf_all, "Forcing unbuffered through environment variable", T_META_ENVVAR("STDBUF=U")) | |
| 30 | { | |
| 31 | FILE* fp = test_setup(); | |
| 32 | ||
| 33 | T_EXPECT_TRUE(IS_FLAG_SET(fp, __SNBF), "unbuffered"); | |
| 34 | T_EXPECT_FALSE(IS_FLAG_SET(fp, __SLBF), "not line buffered"); | |
| 35 | T_EXPECT_EQ(BUFFER_SIZE(fp), 1, "buffer size 1"); | |
| 36 | } | |
| 37 | ||
| 38 | ||
| 39 | T_DECL(envbuf_PR_38637477_line_all, "Forcing line buffering through environment variable", T_META_ENVVAR("STDBUF=L16")) | |
| 40 | { | |
| 41 | FILE* fp = test_setup(); | |
| 42 | ||
| 43 | T_EXPECT_FALSE(IS_FLAG_SET(fp, __SNBF), "not unbuffered"); | |
| 44 | T_EXPECT_TRUE(IS_FLAG_SET(fp, __SLBF), "line buffered"); | |
| 45 | T_EXPECT_EQ(BUFFER_SIZE(fp), 16, "buffer size 16"); | |
| 46 | } | |
| 47 | ||
| 48 | T_DECL(envbuf_PR_38637477_full_all, "Forcing full buffering through environment variable", T_META_ENVVAR("STDBUF=F16")) | |
| 49 | { | |
| 50 | FILE* fp = test_setup(); | |
| 51 | ||
| 52 | T_EXPECT_FALSE(IS_FLAG_SET(fp, __SNBF), "not unbuffered"); | |
| 53 | T_EXPECT_FALSE(IS_FLAG_SET(fp, __SLBF), "not line buffered"); | |
| 54 | T_EXPECT_EQ(BUFFER_SIZE(fp), 16, "buffer size 16"); | |
| 55 | } | |
| 56 | ||
| 57 | T_DECL(envbuf_PR_38637477_unbuf_stdout, "Forcing unbuffered through environment variable for stdout", T_META_ENVVAR("STDBUF1=U")) | |
| 58 | { | |
| 59 | ||
| 60 | fprintf(stdout, "Test\n"); | |
| 61 | ||
| 62 | T_EXPECT_TRUE(IS_FLAG_SET(stdout, __SNBF), "unbuffered"); | |
| 63 | T_EXPECT_FALSE(IS_FLAG_SET(stdout, __SLBF), "not linebuffered"); | |
| 64 | T_EXPECT_EQ(BUFFER_SIZE(stdout), 1, "buffer size 1"); | |
| 65 | } | |
| 66 | ||
| 67 | T_DECL(envbuf_PR_38637477_line_stdout, "Forcing line buffering through environment variable for stdout", T_META_ENVVAR("STDBUF1=L32")) | |
| 68 | { | |
| 69 | ||
| 70 | fprintf(stdout, "Test\n"); | |
| 71 | ||
| 72 | T_EXPECT_FALSE(IS_FLAG_SET(stdout, __SNBF), "not unbuffered"); | |
| 73 | T_EXPECT_TRUE(IS_FLAG_SET(stdout, __SLBF), "line buffered"); | |
| 74 | T_EXPECT_EQ(BUFFER_SIZE(stdout), 32, "buffer size 32"); | |
| 75 | } | |
| 76 | ||
| 77 | T_DECL(envbuf_PR_38637477_full_stdout, "Forcing full buffering through environment variable for stdout", T_META_ENVVAR("STDBUF1=F16")) | |
| 78 | { | |
| 79 | ||
| 80 | fprintf(stdout, "Test\n"); | |
| 81 | ||
| 82 | T_EXPECT_FALSE(IS_FLAG_SET(stdout, __SNBF), "not unbuffered"); | |
| 83 | T_EXPECT_FALSE(IS_FLAG_SET(stdout, __SLBF), "not line buffered"); | |
| 84 | T_EXPECT_EQ(BUFFER_SIZE(stdout), 16, "buffer size 16"); | |
| 85 | } |