1 files changed, 139 insertions, 0 deletions
diff --git a/tests/libgit2/config/snapshot.c b/tests/libgit2/config/snapshot.c
new file mode 100644
index 000000000..5cc08a721
--- /dev/null
+++ b/tests/libgit2/config/snapshot.c
@@ -0,0 +1,139 @@
+#include "clar_libgit2.h"
+
+#include "config_backend.h"
+
+static git_config *cfg;
+static git_config *snapshot;
+
+void test_config_snapshot__cleanup(void)
+{
+	git_config_free(cfg);
+	cfg = NULL;
+	git_config_free(snapshot);
+	snapshot = NULL;
+}
+
+void test_config_snapshot__create_snapshot(void)
+{
+	int32_t i;
+
+	cl_git_mkfile("config", "[old]\nvalue = 5\n");
+	cl_git_pass(git_config_open_ondisk(&cfg, "config"));
+	cl_git_pass(git_config_get_int32(&i, cfg, "old.value"));
+	cl_assert_equal_i(5, i);
+
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+
+	/* Change the value on the file itself (simulate external process) */
+	cl_git_mkfile("config", "[old]\nvalue = 56\n");
+
+	cl_git_pass(git_config_get_int32(&i, cfg, "old.value"));
+	cl_assert_equal_i(56, i);
+	cl_git_pass(git_config_get_int32(&i, snapshot, "old.value"));
+	cl_assert_equal_i(5, i);
+
+	/* Change the value on the file itself (simulate external process) */
+	cl_git_mkfile("config", "[old]\nvalue = 999\n");
+
+	/* Old snapshot should still have the old value */
+	cl_git_pass(git_config_get_int32(&i, snapshot, "old.value"));
+	cl_assert_equal_i(5, i);
+
+	/* New snapshot should see new value */
+	git_config_free(snapshot);
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+	cl_git_pass(git_config_get_int32(&i, snapshot, "old.value"));
+	cl_assert_equal_i(999, i);
+
+	cl_git_pass(p_unlink("config"));
+}
+
+static int count_me(const git_config_entry *entry, void *payload)
+{
+	int *n = (int *) payload;
+
+	GIT_UNUSED(entry);
+
+	(*n)++;
+
+	return 0;
+}
+
+void test_config_snapshot__multivar(void)
+{
+	int count;
+
+	count = 0;
+	cl_git_mkfile("config", "[old]\nvalue = 5\nvalue = 6\n");
+	cl_git_pass(git_config_open_ondisk(&cfg, "config"));
+	cl_git_pass(git_config_get_multivar_foreach(cfg, "old.value", NULL, count_me, &count));
+	cl_assert_equal_i(2, count);
+
+	count = 0;
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+	cl_git_pass(git_config_get_multivar_foreach(snapshot, "old.value", NULL, count_me, &count));
+	cl_assert_equal_i(2, count);
+
+	cl_git_pass(p_unlink("config"));
+}
+
+void test_config_snapshot__includes(void)
+{
+	int i;
+
+	cl_git_mkfile("including", "[include]\npath = included");
+	cl_git_mkfile("included", "[section]\nkey = 1\n");
+
+	cl_git_pass(git_config_open_ondisk(&cfg, "including"));
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+
+	cl_git_pass(git_config_get_int32(&i, snapshot, "section.key"));
+	cl_assert_equal_i(i, 1);
+
+	/* Rewrite "included" config */
+	cl_git_mkfile("included", "[section]\nkey = 11\n");
+
+	/* Assert that the live config changed, but snapshot remained the same */
+	cl_git_pass(git_config_get_int32(&i, cfg, "section.key"));
+	cl_assert_equal_i(i, 11);
+	cl_git_pass(git_config_get_int32(&i, snapshot, "section.key"));
+	cl_assert_equal_i(i, 1);
+
+	cl_git_pass(p_unlink("including"));
+	cl_git_pass(p_unlink("included"));
+}
+
+void test_config_snapshot__snapshot(void)
+{
+	git_config *snapshot_snapshot;
+	int i;
+
+	cl_git_mkfile("configfile", "[section]\nkey = 1\n");
+
+	cl_git_pass(git_config_open_ondisk(&cfg, "configfile"));
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+
+	cl_git_pass(git_config_snapshot(&snapshot_snapshot, snapshot));
+
+	cl_git_pass(git_config_get_int32(&i, snapshot_snapshot, "section.key"));
+	cl_assert_equal_i(i, 1);
+
+	git_config_free(snapshot_snapshot);
+
+	cl_git_pass(p_unlink("configfile"));
+}
+
+void test_config_snapshot__snapshot_from_in_memony(void)
+{
+	const char *configuration = "[section]\nkey = 1\n";
+	git_config_backend *backend;
+	int i;
+
+	cl_git_pass(git_config_new(&cfg));
+	cl_git_pass(git_config_backend_from_string(&backend, configuration, strlen(configuration)));
+	cl_git_pass(git_config_add_backend(cfg, backend, 0, NULL, 0));
+
+	cl_git_pass(git_config_snapshot(&snapshot, cfg));
+	cl_git_pass(git_config_get_int32(&i, snapshot, "section.key"));
+	cl_assert_equal_i(i, 1);
+}