1 files changed, 124 insertions, 0 deletions
diff --git a/src/lib-dns/test-dns-util.c b/src/lib-dns/test-dns-util.c
new file mode 100644
index 0000000..15d5047
--- /dev/null
+++ b/src/lib-dns/test-dns-util.c
@@ -0,0 +1,124 @@
+/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
+
+#include "lib.h"
+#include "test-lib.h"
+#include "dns-util.h"
+#include "array.h"
+
+static void test_dns_compare(void)
+{
+	static const struct {
+		const char *a;
+		const char *b;
+		int res;
+	} tests[] =
+	{
+		{ NULL, NULL, 0 },
+		{ NULL, "", 1 },
+		{ "", NULL, -1 },
+		{ "", "", 0 },
+		{ "a", "a", 0 },
+		{ "a", "b", -1 },
+		{ "b", "a", 1 },
+		{ "A", "A", 0 },
+		{ "A", "B", -1 },
+		{ "B", "A", 1 },
+		{ "A", "a", 0 },
+		{ "a", "B", -1 },
+		{ "B", "a", 1 },
+		{ "test.invalid", "TeSt.InVaLid", 0 },
+		{ "alphabet.com", "alpha.com", 52 },
+		{ "com.alphabet", "com.alpha", 98 },
+		{ "com.com", "com.comcom", -99 },
+	};
+
+	test_begin("test_dns_compare");
+
+	for(size_t i = 0; i < N_ELEMENTS(tests); i++) {
+		test_assert_idx(dns_compare(tests[i].a, tests[i].b) == tests[i].res, i);
+		test_assert_idx(dns_compare_labels(tests[i].a, tests[i].b) == tests[i].res, i);
+	}
+
+	test_end();
+}
+
+static void test_dns_match(void)
+{
+	static const struct {
+		const char *name;
+		const char *mask;
+		int res;
+	} tests[] =
+	{
+		{ "", "", 0 },
+		{ "", "*", 0 },
+		{ "*", "", -1 },
+		{ "TeSt.InVaLid", "test.invalid", 0 },
+		{ "contoso.com", "test.invalid", -1 },
+		{ "test.invalid", "test.unvalid", -1 },
+		{ "name.test.invalid", "*.test.invalid", 0 },
+		{ "real.name.test.invalid", "*.test.invalid", -1 },
+		{ "real.name.test.invalid", "*.*.test.invalid", 0 },
+		{ "name.test.invalid", "*name*.test.invalid", -1 },
+		{ "name.invalid", "name.*", -1 },
+	};
+
+	test_begin("test_dns_match");
+
+	for(size_t i = 0; i < N_ELEMENTS(tests); i++) {
+		test_assert_idx(dns_match_wildcard(tests[i].name, tests[i].mask) == tests[i].res, i);
+	}
+
+	test_end();
+}
+
+static int
+arr_dns_compare(const char *const *a, const char *const *b)
+{
+	return dns_compare_labels(*a,*b);
+}
+
+static void test_dns_sort(void)
+{
+	const char *input[] = {
+		"test.invalid",
+		"test.com",
+		"test.contoso.com",
+		"test.alphabet.com",
+		"test.xxx",
+	};
+
+	const char *output[] = {
+		"test.alphabet.com",
+		"test.contoso.com",
+		"test.com",
+		"test.invalid",
+		"test.xxx",
+	};
+
+	test_begin("test_dns_sort");
+
+	ARRAY_TYPE(const_string) arr;
+	t_array_init(&arr, 8);
+
+	array_append(&arr, input, N_ELEMENTS(input));
+
+	array_sort(&arr, arr_dns_compare);
+
+	for(size_t i = 0; i < N_ELEMENTS(output); i++) {
+		const char *str = array_idx_elem(&arr, i);
+		test_assert_idx(dns_compare(str, output[i]) == 0, i);
+	}
+
+	test_end();
+}
+
+int main(void) {
+	void (*const test_functions[])(void) = {
+		test_dns_compare,
+		test_dns_match,
+		test_dns_sort,
+		NULL
+	};
+	return test_run(test_functions);
+}