config: introduce _iterator_new()

As the name suggests, it iterates over all the entries

1 files changed, 30 insertions, 0 deletions

diff --git a/tests-clar/config/read.c b/tests-clar/config/read.c
index a18dca89b..2fb511d9d 100644
--- a/tests-clar/config/read.c
+++ b/tests-clar/config/read.c
@@ -245,6 +245,36 @@ void test_config_read__foreach(void)
 	git_config_free(cfg);
 }
 
+void test_config_read__iterator(void)
+{
+	git_config *cfg;
+	git_config_iterator *iter;
+	git_config_entry *entry;
+	int count, ret;
+
+	cl_git_pass(git_config_new(&cfg));
+	cl_git_pass(git_config_add_file_ondisk(cfg, cl_fixture("config/config9"),
+		GIT_CONFIG_LEVEL_SYSTEM, 0));
+	cl_git_pass(git_config_add_file_ondisk(cfg, cl_fixture("config/config15"),
+		GIT_CONFIG_LEVEL_GLOBAL, 0));
+
+	count = 0;
+	cl_git_pass(git_config_iterator_new(&iter, cfg));
+
+	while ((ret = git_config_next(&entry, iter)) == 0) {
+		count++;
+	}
+
+	cl_assert_equal_i(GIT_ITEROVER, ret);
+	cl_assert_equal_i(7, count);
+
+	count = 3;
+	cl_git_pass(git_config_iterator_new(&iter, cfg));
+
+	git_config_iterator_free(iter);
+	git_config_free(cfg);
+}
+
 static int count_cfg_entries(const git_config_entry *entry, void *payload)
 {
 	int *count = payload;