1 files changed, 148 insertions, 0 deletions
diff --git a/tests/merge/workdir/fastforward.c b/tests/merge/workdir/fastforward.c
new file mode 100644
index 000000000..861f38354
--- /dev/null
+++ b/tests/merge/workdir/fastforward.c
@@ -0,0 +1,148 @@
+#include "clar_libgit2.h"
+#include "git2/repository.h"
+#include "git2/merge.h"
+#include "git2/sys/index.h"
+#include "merge.h"
+#include "../merge_helpers.h"
+#include "refs.h"
+
+static git_repository *repo;
+static git_index *repo_index;
+
+#define TEST_REPO_PATH "merge-resolve"
+#define TEST_INDEX_PATH TEST_REPO_PATH "/.git/index"
+
+#define THEIRS_FASTFORWARD_BRANCH	"ff_branch"
+#define THEIRS_FASTFORWARD_OID		"fd89f8cffb663ac89095a0f9764902e93ceaca6a"
+
+#define THEIRS_NOFASTFORWARD_BRANCH	"branch"
+#define THEIRS_NOFASTFORWARD_OID	"7cb63eed597130ba4abb87b3e544b85021905520"
+
+
+// Fixture setup and teardown
+void test_merge_workdir_fastforward__initialize(void)
+{
+	repo = cl_git_sandbox_init(TEST_REPO_PATH);
+	git_repository_index(&repo_index, repo);
+}
+
+void test_merge_workdir_fastforward__cleanup(void)
+{
+	git_index_free(repo_index);
+	cl_git_sandbox_cleanup();
+}
+
+static git_merge_result *merge_fastforward_branch(int flags)
+{
+	git_reference *their_ref;
+	git_merge_head *their_heads[1];
+	git_merge_result *result;
+	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+
+	opts.merge_flags = flags;
+
+	cl_git_pass(git_reference_lookup(&their_ref, repo, GIT_REFS_HEADS_DIR THEIRS_FASTFORWARD_BRANCH));
+	cl_git_pass(git_merge_head_from_ref(&their_heads[0], repo, their_ref));
+
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, &opts));
+
+	git_merge_head_free(their_heads[0]);
+	git_reference_free(their_ref);
+
+	return result;
+}
+
+void test_merge_workdir_fastforward__fastforward(void)
+{
+	git_merge_result *result;
+	git_oid expected, ff_oid;
+
+	cl_git_pass(git_oid_fromstr(&expected, THEIRS_FASTFORWARD_OID));
+
+	cl_assert(result = merge_fastforward_branch(0));
+	cl_assert(git_merge_result_is_fastforward(result));
+	cl_git_pass(git_merge_result_fastforward_oid(&ff_oid, result));
+	cl_assert(git_oid_cmp(&ff_oid, &expected) == 0);
+
+	git_merge_result_free(result);
+}
+
+void test_merge_workdir_fastforward__fastforward_only(void)
+{
+	git_merge_result *result;
+	git_merge_opts opts = GIT_MERGE_OPTS_INIT;
+	git_reference *their_ref;
+	git_merge_head *their_head;
+	int error;
+
+	opts.merge_flags = GIT_MERGE_FASTFORWARD_ONLY;
+
+	cl_git_pass(git_reference_lookup(&their_ref, repo, GIT_REFS_HEADS_DIR THEIRS_NOFASTFORWARD_BRANCH));
+	cl_git_pass(git_merge_head_from_ref(&their_head, repo, their_ref));
+
+	cl_git_fail((error = git_merge(&result, repo, (const git_merge_head **)&their_head, 1, &opts)));
+	cl_assert(error == GIT_ENONFASTFORWARD);
+
+	git_merge_head_free(their_head);
+	git_reference_free(their_ref);
+}
+
+void test_merge_workdir_fastforward__no_fastforward(void)
+{
+	git_merge_result *result;
+
+	struct merge_index_entry merge_index_entries[] = {
+		{ 0100644, "233c0919c998ed110a4b6ff36f353aec8b713487", 0, "added-in-master.txt" },
+		{ 0100644, "ee3fa1b8c00aff7fe02065fdb50864bb0d932ccf", 0, "automergeable.txt" },
+		{ 0100644, "ab6c44a2e84492ad4b41bb6bac87353e9d02ac8b", 0, "changed-in-branch.txt" },
+		{ 0100644, "bd9cb4cd0a770cb9adcb5fce212142ef40ea1c35", 0, "changed-in-master.txt" },
+		{ 0100644, "4e886e602529caa9ab11d71f86634bd1b6e0de10", 0, "conflicting.txt" },
+		{ 0100644, "364bbe4ce80c7bd31e6307dce77d46e3e1759fb3", 0, "new-in-ff.txt" },
+		{ 0100644, "dfe3f22baa1f6fce5447901c3086bae368de6bdd", 0, "removed-in-branch.txt" },
+		{ 0100644, "c8f06f2e3bb2964174677e91f0abead0e43c9e5d", 0, "unchanged.txt" },
+	};
+
+	cl_assert(result = merge_fastforward_branch(GIT_MERGE_NO_FASTFORWARD));
+	cl_assert(!git_merge_result_is_fastforward(result));
+
+	cl_assert(merge_test_index(repo_index, merge_index_entries, 8));
+	cl_assert(git_index_reuc_entrycount(repo_index) == 0);
+
+	git_merge_result_free(result);
+}
+
+void test_merge_workdir_fastforward__uptodate(void)
+{
+	git_reference *their_ref;
+	git_merge_head *their_heads[1];
+	git_merge_result *result;
+
+	cl_git_pass(git_reference_lookup(&their_ref, repo, GIT_HEAD_FILE));
+	cl_git_pass(git_merge_head_from_ref(&their_heads[0], repo, their_ref));
+
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, NULL));
+
+	cl_assert(git_merge_result_is_uptodate(result));
+
+	git_merge_head_free(their_heads[0]);
+	git_reference_free(their_ref);
+	git_merge_result_free(result);
+}
+
+void test_merge_workdir_fastforward__uptodate_merging_prev_commit(void)
+{
+	git_oid their_oid;
+	git_merge_head *their_heads[1];
+	git_merge_result *result;
+
+	cl_git_pass(git_oid_fromstr(&their_oid, "c607fc30883e335def28cd686b51f6cfa02b06ec"));
+	cl_git_pass(git_merge_head_from_oid(&their_heads[0], repo, &their_oid));
+
+	cl_git_pass(git_merge(&result, repo, (const git_merge_head **)their_heads, 1, NULL));
+
+	cl_assert(git_merge_result_is_uptodate(result));
+
+	git_merge_head_free(their_heads[0]);
+	git_merge_result_free(result);
+}
+