tests/diff/drivers.c

   1 #include "clar_libgit2.h"
   2 #include "diff_helpers.h"
   3 #include "repository.h"
   4 #include "diff_driver.h"
   5
   6 static git_repository *g_repo = NULL;
   7
   8 void test_diff_drivers__initialize(void)
   9 {
  10 }
  11
  12 void test_diff_drivers__cleanup(void)
  13 {
  14         cl_git_sandbox_cleanup();
  15         g_repo = NULL;
  16 }
  17
  18 static void overwrite_chmod_at_offset(git_buf *buf, size_t offset)
  19 {
  20         if (cl_is_chmod_supported())
  21                 return;
  22
  23         if (buf->size > offset + 6 && memcmp(&buf->ptr[offset], "100644", 6) != 0)
  24                 memcpy(&buf->ptr[offset], "100644", 6);
  25 }
  26
  27 void test_diff_drivers__patterns(void)
  28 {
  29         git_config *cfg;
  30         const char *one_sha = "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13";
  31         git_tree *one;
  32         git_diff *diff;
  33         git_patch *patch;
  34         git_buf actual = GIT_BUF_INIT;
  35         const char *expected0 = "diff --git a/untimely.txt b/untimely.txt\nindex 9a69d96..57fd0cf 100644\n--- a/untimely.txt\n+++ b/untimely.txt\n@@ -22,3 +22,5 @@ Comes through the blood of the vanguards who\n   dreamed--too soon--it had sounded.\r\n \r\n                 -- Rudyard Kipling\r\n+\r\n+Some new stuff\r\n";
  36         const char *expected1 = "diff --git a/untimely.txt b/untimely.txt\nindex 9a69d96..57fd0cf 100644\nBinary files a/untimely.txt and b/untimely.txt differ\n";
  37         const char *expected2 = "diff --git a/untimely.txt b/untimely.txt\nindex 9a69d96..57fd0cf 100644\n--- a/untimely.txt\n+++ b/untimely.txt\n@@ -22,3 +22,5 @@ Heaven delivers on earth the Hour that cannot be\n   dreamed--too soon--it had sounded.\r\n \r\n                 -- Rudyard Kipling\r\n+\r\n+Some new stuff\r\n";
  38
  39         g_repo = cl_git_sandbox_init("renames");
  40
  41         one = resolve_commit_oid_to_tree(g_repo, one_sha);
  42
  43         /* no diff */
  44
  45         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
  46         cl_assert_equal_i(0, (int)git_diff_num_deltas(diff));
  47         git_diff_free(diff);
  48
  49         /* default diff */
  50
  51         cl_git_append2file("renames/untimely.txt", "\r\nSome new stuff\r\n");
  52
  53         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
  54         cl_assert_equal_i(1, (int)git_diff_num_deltas(diff));
  55
  56         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
  57         cl_git_pass(git_patch_to_buf(&actual, patch));
  58         cl_assert_equal_s(expected0, actual.ptr);
  59
  60         git_buf_free(&actual);
  61         git_patch_free(patch);
  62         git_diff_free(diff);
  63
  64         /* attribute diff set to false */
  65
  66         cl_git_rewritefile("renames/.gitattributes", "untimely.txt -diff\n");
  67
  68         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
  69         cl_assert_equal_i(1, (int)git_diff_num_deltas(diff));
  70
  71         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
  72         cl_git_pass(git_patch_to_buf(&actual, patch));
  73         cl_assert_equal_s(expected1, actual.ptr);
  74
  75         git_buf_free(&actual);
  76         git_patch_free(patch);
  77         git_diff_free(diff);
  78
  79         /* attribute diff set to unconfigured value (should use default) */
  80
  81         cl_git_rewritefile("renames/.gitattributes", "untimely.txt diff=kipling0\n");
  82
  83         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
  84         cl_assert_equal_i(1, (int)git_diff_num_deltas(diff));
  85
  86         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
  87         cl_git_pass(git_patch_to_buf(&actual, patch));
  88         cl_assert_equal_s(expected0, actual.ptr);
  89
  90         git_buf_free(&actual);
  91         git_patch_free(patch);
  92         git_diff_free(diff);
  93
  94         /* let's define that driver */
  95
  96         cl_git_pass(git_repository_config(&cfg, g_repo));
  97         cl_git_pass(git_config_set_bool(cfg, "diff.kipling0.binary", 1));
  98         git_config_free(cfg);
  99
 100         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
 101         cl_assert_equal_i(1, (int)git_diff_num_deltas(diff));
 102
 103         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
 104         cl_git_pass(git_patch_to_buf(&actual, patch));
 105         cl_assert_equal_s(expected1, actual.ptr);
 106
 107         git_buf_free(&actual);
 108         git_patch_free(patch);
 109         git_diff_free(diff);
 110
 111         /* let's use a real driver with some regular expressions */
 112
 113         git_diff_driver_registry_free(g_repo->diff_drivers);
 114         g_repo->diff_drivers = NULL;
 115
 116         cl_git_pass(git_repository_config(&cfg, g_repo));
 117         cl_git_pass(git_config_set_bool(cfg, "diff.kipling0.binary", 0));
 118         cl_git_pass(git_config_set_string(cfg, "diff.kipling0.xfuncname", "^H"));
 119         git_config_free(cfg);
 120
 121         cl_git_pass(git_diff_tree_to_workdir(&diff, g_repo, one, NULL));
 122         cl_assert_equal_i(1, (int)git_diff_num_deltas(diff));
 123
 124         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
 125         cl_git_pass(git_patch_to_buf(&actual, patch));
 126         cl_assert_equal_s(expected2, actual.ptr);
 127
 128         git_buf_free(&actual);
 129         git_patch_free(patch);
 130         git_diff_free(diff);
 131
 132         git_tree_free(one);
 133 }
 134
 135 void test_diff_drivers__long_lines(void)
 136 {
 137         const char *base = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed non nisi ligula. Ut viverra enim sed lobortis suscipit.\nPhasellus eget erat odio. Praesent at est iaculis, ultricies augue vel, dignissim risus. Suspendisse at nisi quis turpis fringilla rutrum id sit amet nulla.\nNam eget dolor fermentum, aliquet nisl at, convallis tellus. Pellentesque rhoncus erat enim, id porttitor elit euismod quis.\nMauris sollicitudin magna odio, non egestas libero vehicula ut. Etiam et quam velit. Fusce eget libero rhoncus, ultricies felis sit amet, egestas purus.\nAliquam in semper tellus. Pellentesque adipiscing rutrum velit, quis malesuada lacus consequat eget.\n";
 138         git_index *idx;
 139         git_diff *diff;
 140         git_patch *patch;
 141         git_buf actual = GIT_BUF_INIT;
 142         const char *expected = "diff --git a/longlines.txt b/longlines.txt\nindex c1ce6ef..0134431 100644\n--- a/longlines.txt\n+++ b/longlines.txt\n@@ -3,3 +3,5 @@ Phasellus eget erat odio. Praesent at est iaculis, ultricies augue vel, dignissi\n Nam eget dolor fermentum, aliquet nisl at, convallis tellus. Pellentesque rhoncus erat enim, id porttitor elit euismod quis.\n Mauris sollicitudin magna odio, non egestas libero vehicula ut. Etiam et quam velit. Fusce eget libero rhoncus, ultricies felis sit amet, egestas purus.\n Aliquam in semper tellus. Pellentesque adipiscing rutrum velit, quis malesuada lacus consequat eget.\n+newline\n+newline\n";
 143
 144         g_repo = cl_git_sandbox_init("empty_standard_repo");
 145
 146         cl_git_mkfile("empty_standard_repo/longlines.txt", base);
 147         cl_git_pass(git_repository_index(&idx, g_repo));
 148         cl_git_pass(git_index_add_bypath(idx, "longlines.txt"));
 149         cl_git_pass(git_index_write(idx));
 150         git_index_free(idx);
 151
 152         cl_git_append2file("empty_standard_repo/longlines.txt", "newline\nnewline\n");
 153
 154         cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, NULL, NULL));
 155         cl_assert_equal_sz(1, git_diff_num_deltas(diff));
 156         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
 157         cl_git_pass(git_patch_to_buf(&actual, patch));
 158
 159         /* if chmod not supported, overwrite mode bits since anything is possible */
 160         overwrite_chmod_at_offset(&actual, 66);
 161
 162         cl_assert_equal_s(expected, actual.ptr);
 163
 164         git_buf_free(&actual);
 165         git_patch_free(patch);
 166         git_diff_free(diff);
 167 }
 168
 169 void test_diff_drivers__builtins(void)
 170 {
 171         git_index *idx;
 172         git_diff *diff;
 173         git_patch *patch;
 174         git_buf actual = GIT_BUF_INIT;
 175         git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
 176         const char *base =
 177                 "<html>\n<body>\n"
 178                 "  <h1 id=\"first section\">\n  <ol>\n    <li>item 1.1</li>\n    <li>item 1.2</li>\n    <li>item 1.3</li>\n    <li>item 1.4</li>\n    <li>item 1.5</li>\n    <li>item 1.6</li>\n    <li>item 1.7</li>\n    <li>item 1.8</li>\n    <li>item 1.9</li>\n  </ol>\n  </h1>\n"
 179                 "  <h1 id=\"second section\">\n  <ol>\n    <li>item 2.1</li>\n    <li>item 2.2</li>\n    <li>item 2.3</li>\n    <li>item 2.4</li>\n    <li>item 2.5</li>\n    <li>item 2.6</li>\n    <li>item 2.7</li>\n    <li>item 2.8</li>\n  </ol>\n  </h1>\n"
 180                 "  <h1 id=\"third section\">\n  <ol>\n    <li>item 3.1</li>\n    <li>item 3.2</li>\n    <li>item 3.3</li>\n    <li>item 3.4</li>\n    <li>item 3.5</li>\n    <li>item 3.6</li>\n    <li>item 3.7</li>\n    <li>item 3.8</li>\n  </ol>\n  </h1>\n"
 181                 "</body></html>\n";
 182         const char *modified =
 183                 "<html>\n<body>\n"
 184                 "  <h1 id=\"first section\">\n  <ol>\n    <li>item 1.1</li>\n    <li>item 1.2 changed</li>\n    <li>item 1.3 changed</li>\n    <li>item 1.4</li>\n    <li>item 1.5</li>\n    <li>item 1.6</li>\n    <li>item 1.7</li>\n    <li>item 1.8</li>\n    <li>item 1.9</li>\n  <li>item 1.10 added</li>\n  </ol>\n  </h1>\n"
 185                 "  <h1 id=\"second section\">\n  <ol>\n    <li>item 2.1</li>\n    <li>item 2.2</li>\n    <li>item 2.3</li>\n    <li>item 2.4</li>\n    <li>item 2.5</li>\n    <li>item 2.6</li>\n    <li>item 2.7 changed</li>\n    <li>item 2.7.1 added</li>\n    <li>item 2.8</li>\n  </ol>\n  </h1>\n"
 186                 "  <h1 id=\"third section\">\n  <ol>\n    <li>item 3.1</li>\n    <li>item 3.2</li>\n    <li>item 3.3</li>\n    <li>item 3.4</li>\n    <li>item 3.5</li>\n    <li>item 3.6</li>\n  </ol>\n  </h1>\n"
 187                 "</body></html>\n";
 188         const char *expected_nodriver =
 189                 "diff --git a/file.html b/file.html\nindex 97b34db..c7dbed3 100644\n--- a/file.html\n+++ b/file.html\n@@ -5,4 +5,4 @@\n     <li>item 1.1</li>\n-    <li>item 1.2</li>\n-    <li>item 1.3</li>\n+    <li>item 1.2 changed</li>\n+    <li>item 1.3 changed</li>\n     <li>item 1.4</li>\n@@ -13,2 +13,3 @@\n     <li>item 1.9</li>\n+  <li>item 1.10 added</li>\n   </ol>\n@@ -23,3 +24,4 @@\n     <li>item 2.6</li>\n-    <li>item 2.7</li>\n+    <li>item 2.7 changed</li>\n+    <li>item 2.7.1 added</li>\n     <li>item 2.8</li>\n@@ -35,4 +37,2 @@\n     <li>item 3.6</li>\n-    <li>item 3.7</li>\n-    <li>item 3.8</li>\n   </ol>\n";
 190         const char *expected_driver =
 191                 "diff --git a/file.html b/file.html\nindex 97b34db..c7dbed3 100644\n--- a/file.html\n+++ b/file.html\n@@ -5,4 +5,4 @@   <h1 id=\"first section\">\n     <li>item 1.1</li>\n-    <li>item 1.2</li>\n-    <li>item 1.3</li>\n+    <li>item 1.2 changed</li>\n+    <li>item 1.3 changed</li>\n     <li>item 1.4</li>\n@@ -13,2 +13,3 @@   <h1 id=\"first section\">\n     <li>item 1.9</li>\n+  <li>item 1.10 added</li>\n   </ol>\n@@ -23,3 +24,4 @@   <h1 id=\"second section\">\n     <li>item 2.6</li>\n-    <li>item 2.7</li>\n+    <li>item 2.7 changed</li>\n+    <li>item 2.7.1 added</li>\n     <li>item 2.8</li>\n@@ -35,4 +37,2 @@   <h1 id=\"third section\">\n     <li>item 3.6</li>\n-    <li>item 3.7</li>\n-    <li>item 3.8</li>\n   </ol>\n";
 192
 193         g_repo = cl_git_sandbox_init("empty_standard_repo");
 194
 195         cl_git_mkfile("empty_standard_repo/file.html", base);
 196         cl_git_pass(git_repository_index(&idx, g_repo));
 197         cl_git_pass(git_index_add_bypath(idx, "file.html"));
 198         cl_git_pass(git_index_write(idx));
 199         git_index_free(idx);
 200
 201         cl_git_rewritefile("empty_standard_repo/file.html", modified);
 202
 203         /* do diff with no special driver */
 204
 205         opts.interhunk_lines = 1;
 206         opts.context_lines = 1;
 207
 208         cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, NULL, &opts));
 209         cl_assert_equal_sz(1, git_diff_num_deltas(diff));
 210         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
 211         cl_git_pass(git_patch_to_buf(&actual, patch));
 212
 213         overwrite_chmod_at_offset(&actual, 59);
 214
 215         cl_assert_equal_s(expected_nodriver, actual.ptr);
 216
 217         git_buf_free(&actual);
 218         git_patch_free(patch);
 219         git_diff_free(diff);
 220
 221         /* do diff with HTML driver */
 222
 223         cl_git_mkfile("empty_standard_repo/.gitattributes", "*.html diff=html\n");
 224
 225         cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, NULL, &opts));
 226         cl_assert_equal_sz(1, git_diff_num_deltas(diff));
 227         cl_git_pass(git_patch_from_diff(&patch, diff, 0));
 228         cl_git_pass(git_patch_to_buf(&actual, patch));
 229
 230         overwrite_chmod_at_offset(&actual, 59);
 231
 232         cl_assert_equal_s(expected_driver, actual.ptr);
 233
 234         git_buf_free(&actual);
 235         git_patch_free(patch);
 236         git_diff_free(diff);
 237 }