thodg/libgit2/tests-clar/diff/blob.c
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Hash : a3337f10
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Date : 2012-12-17T15:15:20
blob: introduce git_blob_is_binary()
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tests-clar/diff/blob.c
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#include "clar_libgit2.h" #include "diff_helpers.h" static git_repository *g_repo = NULL; static diff_expects expected; static git_diff_options opts; static git_blob *d, *alien; void test_diff_blob__initialize(void) { git_oid oid; g_repo = cl_git_sandbox_init("attr"); GIT_INIT_STRUCTURE(&opts, GIT_DIFF_OPTIONS_VERSION); opts.context_lines = 1; opts.interhunk_lines = 0; memset(&expected, 0, sizeof(expected)); /* tests/resources/attr/root_test4.txt */ cl_git_pass(git_oid_fromstrn(&oid, "a0f7217a", 8)); cl_git_pass(git_blob_lookup_prefix(&d, g_repo, &oid, 4)); /* alien.png */ cl_git_pass(git_oid_fromstrn(&oid, "edf3dcee", 8)); cl_git_pass(git_blob_lookup_prefix(&alien, g_repo, &oid, 4)); } void test_diff_blob__cleanup(void) { git_blob_free(d); d = NULL; git_blob_free(alien); alien = NULL; cl_git_sandbox_cleanup(); } void test_diff_blob__can_compare_text_blobs(void) { git_blob *a, *b, *c; git_oid a_oid, b_oid, c_oid; /* tests/resources/attr/root_test1 */ cl_git_pass(git_oid_fromstrn(&a_oid, "45141a79", 8)); cl_git_pass(git_blob_lookup_prefix(&a, g_repo, &a_oid, 4)); /* tests/resources/attr/root_test2 */ cl_git_pass(git_oid_fromstrn(&b_oid, "4d713dc4", 8)); cl_git_pass(git_blob_lookup_prefix(&b, g_repo, &b_oid, 4)); /* tests/resources/attr/root_test3 */ cl_git_pass(git_oid_fromstrn(&c_oid, "c96bbb2c2557a832", 16)); cl_git_pass(git_blob_lookup_prefix(&c, g_repo, &c_oid, 8)); /* Doing the equivalent of a `git diff -U1` on these files */ /* diff on tests/resources/attr/root_test1 */ cl_git_pass(git_diff_blobs( a, b, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(1, expected.hunks); cl_assert_equal_i(6, expected.lines); cl_assert_equal_i(1, expected.line_ctxt); cl_assert_equal_i(5, expected.line_adds); cl_assert_equal_i(0, expected.line_dels); /* diff on tests/resources/attr/root_test2 */ memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( b, c, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(1, expected.hunks); cl_assert_equal_i(15, expected.lines); cl_assert_equal_i(3, expected.line_ctxt); cl_assert_equal_i(9, expected.line_adds); cl_assert_equal_i(3, expected.line_dels); /* diff on tests/resources/attr/root_test3 */ memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( a, c, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(1, expected.hunks); cl_assert_equal_i(13, expected.lines); cl_assert_equal_i(0, expected.line_ctxt); cl_assert_equal_i(12, expected.line_adds); cl_assert_equal_i(1, expected.line_dels); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( c, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_MODIFIED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(2, expected.hunks); cl_assert_equal_i(14, expected.lines); cl_assert_equal_i(4, expected.line_ctxt); cl_assert_equal_i(6, expected.line_adds); cl_assert_equal_i(4, expected.line_dels); git_blob_free(a); git_blob_free(b); git_blob_free(c); } void test_diff_blob__can_compare_against_null_blobs(void) { git_blob *e = NULL; cl_git_pass(git_diff_blobs( d, e, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_DELETED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(1, expected.hunks); cl_assert_equal_i(14, expected.hunk_old_lines); cl_assert_equal_i(14, expected.lines); cl_assert_equal_i(14, expected.line_dels); opts.flags |= GIT_DIFF_REVERSE; memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( d, e, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_ADDED]); cl_assert_equal_i(0, expected.files_binary); cl_assert_equal_i(1, expected.hunks); cl_assert_equal_i(14, expected.hunk_new_lines); cl_assert_equal_i(14, expected.lines); cl_assert_equal_i(14, expected.line_adds); opts.flags ^= GIT_DIFF_REVERSE; memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( alien, NULL, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.files_binary); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_DELETED]); cl_assert_equal_i(0, expected.hunks); cl_assert_equal_i(0, expected.lines); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( NULL, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.files); cl_assert_equal_i(1, expected.files_binary); cl_assert_equal_i(1, expected.file_status[GIT_DELTA_ADDED]); cl_assert_equal_i(0, expected.hunks); cl_assert_equal_i(0, expected.lines); } static void assert_identical_blobs_comparison(diff_expects *expected) { cl_assert_equal_i(1, expected->files); cl_assert_equal_i(1, expected->file_status[GIT_DELTA_UNMODIFIED]); cl_assert_equal_i(0, expected->hunks); cl_assert_equal_i(0, expected->lines); } void test_diff_blob__can_compare_identical_blobs(void) { cl_git_pass(git_diff_blobs( d, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(0, expected.files_binary); assert_identical_blobs_comparison(&expected); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( NULL, NULL, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(0, expected.files_binary); assert_identical_blobs_comparison(&expected); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( alien, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert(expected.files_binary > 0); assert_identical_blobs_comparison(&expected); } static void assert_binary_blobs_comparison(diff_expects *expected) { cl_assert(expected->files_binary > 0); cl_assert_equal_i(1, expected->files); cl_assert_equal_i(1, expected->file_status[GIT_DELTA_MODIFIED]); cl_assert_equal_i(0, expected->hunks); cl_assert_equal_i(0, expected->lines); } void test_diff_blob__can_compare_two_binary_blobs(void) { git_blob *heart; git_oid h_oid; /* heart.png */ cl_git_pass(git_oid_fromstrn(&h_oid, "de863bff", 8)); cl_git_pass(git_blob_lookup_prefix(&heart, g_repo, &h_oid, 4)); cl_git_pass(git_diff_blobs( alien, heart, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); assert_binary_blobs_comparison(&expected); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( heart, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); assert_binary_blobs_comparison(&expected); git_blob_free(heart); } void test_diff_blob__can_compare_a_binary_blob_and_a_text_blob(void) { cl_git_pass(git_diff_blobs( alien, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); assert_binary_blobs_comparison(&expected); memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( d, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); assert_binary_blobs_comparison(&expected); } /* * $ git diff fe773770 a0f7217 * diff --git a/fe773770 b/a0f7217 * index fe77377..a0f7217 100644 * --- a/fe773770 * +++ b/a0f7217 * @@ -1,6 +1,6 @@ * Here is some stuff at the start * * -This should go in one hunk * +This should go in one hunk (first) * * Some additional lines * * @@ -8,7 +8,7 @@ Down here below the other lines * * With even more at the end * * -Followed by a second hunk of stuff * +Followed by a second hunk of stuff (second) * * That happens down here */ void test_diff_blob__comparing_two_text_blobs_honors_interhunkcontext(void) { git_blob *old_d; git_oid old_d_oid; opts.context_lines = 3; /* tests/resources/attr/root_test1 from commit f5b0af1 */ cl_git_pass(git_oid_fromstrn(&old_d_oid, "fe773770", 8)); cl_git_pass(git_blob_lookup_prefix(&old_d, g_repo, &old_d_oid, 4)); /* Test with default inter-hunk-context (not set) => default is 0 */ cl_git_pass(git_diff_blobs( old_d, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(2, expected.hunks); /* Test with inter-hunk-context explicitly set to 0 */ opts.interhunk_lines = 0; memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( old_d, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(2, expected.hunks); /* Test with inter-hunk-context explicitly set to 1 */ opts.interhunk_lines = 1; memset(&expected, 0, sizeof(expected)); cl_git_pass(git_diff_blobs( old_d, d, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); cl_assert_equal_i(1, expected.hunks); git_blob_free(old_d); } void test_diff_blob__checks_options_version_too_low(void) { const git_error *err; opts.version = 0; cl_git_fail(git_diff_blobs( d, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); err = giterr_last(); cl_assert_equal_i(GITERR_INVALID, err->klass); } void test_diff_blob__checks_options_version_too_high(void) { const git_error *err; opts.version = 1024; cl_git_fail(git_diff_blobs( d, alien, &opts, diff_file_cb, diff_hunk_cb, diff_line_cb, &expected)); err = giterr_last(); cl_assert_equal_i(GITERR_INVALID, err->klass); } void test_diff_blob__can_correctly_detect_a_binary_blob_as_binary(void) { /* alien.png */ cl_assert_equal_i(true, git_blob_is_binary(alien)); } void test_diff_blob__can_correctly_detect_a_textual_blob_as_non_binary(void) { /* tests/resources/attr/root_test4.txt */ cl_assert_equal_i(false, git_blob_is_binary(d)); }