thodg/libgit2/tests-clar/diff/patch.c

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• Hash : 793c4385
  Author :
  Date : 2012-11-20T16:36:06
  

  Update diff callback param order
  
  This makes the diff functions that take callbacks both take
  the payload parameter after the callback function pointers and
  pass the payload as the last argument to the callback function
  instead of the first.  This should make them consistent with
  other callbacks across the API.
  

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• tests-clar/diff/patch.c

• #include "clar_libgit2.h"
  #include "diff_helpers.h"
  
  static git_repository *g_repo = NULL;
  
  void test_diff_patch__initialize(void)
  {
  	g_repo = cl_git_sandbox_init("status");
  }
  
  void test_diff_patch__cleanup(void)
  {
  	cl_git_sandbox_cleanup();
  }
  
  #define EXPECTED_HEADER "diff --git a/subdir.txt b/subdir.txt\n" \
  	"deleted file mode 100644\n" \
  	"index e8ee89e..0000000\n" \
  	"--- a/subdir.txt\n" \
  	"+++ /dev/null\n"
  
  #define EXPECTED_HUNK "@@ -1,2 +0,0 @@\n"
  
  static int check_removal_cb(
  	const git_diff_delta *delta,
  	const git_diff_range *range,
  	char line_origin,
  	const char *formatted_output,
  	size_t output_len,
  	void *payload)
  {
  	GIT_UNUSED(payload);
  	GIT_UNUSED(output_len);
  
  	switch (line_origin) {
  	case GIT_DIFF_LINE_FILE_HDR:
  		cl_assert_equal_s(EXPECTED_HEADER, formatted_output);
  		cl_assert(range == NULL);
  		goto check_delta;
  
  	case GIT_DIFF_LINE_HUNK_HDR:
  		cl_assert_equal_s(EXPECTED_HUNK, formatted_output);
  		/* Fall through */
  
  	case GIT_DIFF_LINE_CONTEXT:
  	case GIT_DIFF_LINE_DELETION:
  		goto check_range;
  
  	default:
  		/* unexpected code path */
  		return -1;
  	}
  
  check_range:
  	cl_assert(range != NULL);
  	cl_assert_equal_i(1, range->old_start);
  	cl_assert_equal_i(2, range->old_lines);
  	cl_assert_equal_i(0, range->new_start);
  	cl_assert_equal_i(0, range->new_lines);
  
  check_delta:
  	cl_assert_equal_s("subdir.txt", delta->old_file.path);
  	cl_assert_equal_s("subdir.txt", delta->new_file.path);
  	cl_assert_equal_i(GIT_DELTA_DELETED, delta->status);
  
  	return 0;
  }
  
  void test_diff_patch__can_properly_display_the_removal_of_a_file(void)
  {
  	/*
  	* $ git diff 26a125e..735b6a2
  	* diff --git a/subdir.txt b/subdir.txt
  	* deleted file mode 100644
  	* index e8ee89e..0000000
  	* --- a/subdir.txt
  	* +++ /dev/null
  	* @@ -1,2 +0,0 @@
  	* -Is it a bird?
  	* -Is it a plane?
  	*/
  
  	const char *one_sha = "26a125e";
  	const char *another_sha = "735b6a2";
  	git_tree *one, *another;
  	git_diff_list *diff;
  
  	one = resolve_commit_oid_to_tree(g_repo, one_sha);
  	another = resolve_commit_oid_to_tree(g_repo, another_sha);
  
  	cl_git_pass(git_diff_tree_to_tree(&diff, g_repo, one, another, NULL));
  
  	cl_git_pass(git_diff_print_patch(diff, check_removal_cb, NULL));
  
  	git_diff_list_free(diff);
  
  	git_tree_free(another);
  	git_tree_free(one);
  }
  
  void test_diff_patch__to_string(void)
  {
  	const char *one_sha = "26a125e";
  	const char *another_sha = "735b6a2";
  	git_tree *one, *another;
  	git_diff_list *diff;
  	git_diff_patch *patch;
  	char *text;
  	const char *expected = "diff --git a/subdir.txt b/subdir.txt\ndeleted file mode 100644\nindex e8ee89e..0000000\n--- a/subdir.txt\n+++ /dev/null\n@@ -1,2 +0,0 @@\n-Is it a bird?\n-Is it a plane?\n";
  
  	one = resolve_commit_oid_to_tree(g_repo, one_sha);
  	another = resolve_commit_oid_to_tree(g_repo, another_sha);
  
  	cl_git_pass(git_diff_tree_to_tree(&diff, g_repo, one, another, NULL));
  
  	cl_assert_equal_i(1, git_diff_num_deltas(diff));
  
  	cl_git_pass(git_diff_get_patch(&patch, NULL, diff, 0));
  
  	cl_git_pass(git_diff_patch_to_str(&text, patch));
  
  	cl_assert_equal_s(expected, text);
  
  	git__free(text);
  	git_diff_patch_free(patch);
  	git_diff_list_free(diff);
  	git_tree_free(another);
  	git_tree_free(one);
  }
  

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