--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "import-util.h"
+#include "log.h"
+#include "string-util.h"
+#include "tests.h"
+
+static void test_import_url_last_component_one(const char *input, const char *output, int ret) {
+ _cleanup_free_ char *s = NULL;
+
+ assert_se(import_url_last_component(input, &s) == ret);
+ assert_se(streq_ptr(output, s));
+}
+
+static void test_import_url_last_component(void) {
+ test_import_url_last_component_one("https://foobar/waldo/quux", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/quux/", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/", "waldo", 0);
+ test_import_url_last_component_one("https://foobar/", NULL, -EADDRNOTAVAIL);
+ test_import_url_last_component_one("https://foobar", NULL, -EADDRNOTAVAIL);
+ test_import_url_last_component_one("https://foobar/waldo/quux?foo=bar", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/quux/?foo=bar", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/quux/?foo=bar#piep", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/quux/#piep", "quux", 0);
+ test_import_url_last_component_one("https://foobar/waldo/quux#piep", "quux", 0);
+ test_import_url_last_component_one("https://", NULL, -EINVAL);
+ test_import_url_last_component_one("", NULL, -EINVAL);
+ test_import_url_last_component_one(":", NULL, -EINVAL);
+ test_import_url_last_component_one(":/", NULL, -EINVAL);
+ test_import_url_last_component_one("x:/", NULL, -EINVAL);
+ test_import_url_last_component_one("x:y", NULL, -EADDRNOTAVAIL);
+ test_import_url_last_component_one("x:y/z", "z", 0);
+}
+
+static void test_import_url_change_suffix_one(const char *input, size_t n, const char *suffix, const char *output, int ret) {
+ _cleanup_free_ char *s = NULL;
+
+ assert_se(import_url_change_suffix(input, n, suffix, &s) == ret);
+ assert_se(streq_ptr(output, s));
+}
+
+static void test_import_url_change_suffix(void) {
+ test_import_url_change_suffix_one("https://foobar/waldo/quux", 1, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux/", 1, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux///?mief", 1, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux///?mief#opopo", 1, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux/quff", 2, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux/quff/", 2, "wuff", "https://foobar/waldo/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux/quff", 0, "wuff", "https://foobar/waldo/quux/quff/wuff", 0);
+ test_import_url_change_suffix_one("https://foobar/waldo/quux/quff?aa?bb##4", 0, "wuff", "https://foobar/waldo/quux/quff/wuff", 0);
+ test_import_url_change_suffix_one("https://", 0, "wuff", NULL, -EINVAL);
+ test_import_url_change_suffix_one("", 0, "wuff", NULL, -EINVAL);
+ test_import_url_change_suffix_one(":", 0, "wuff", NULL, -EINVAL);
+ test_import_url_change_suffix_one(":/", 0, "wuff", NULL, -EINVAL);
+ test_import_url_change_suffix_one("x:/", 0, "wuff", NULL, -EINVAL);
+ test_import_url_change_suffix_one("x:y", 0, "wuff", "x:y/wuff", 0);
+ test_import_url_change_suffix_one("x:y/z", 0, "wuff", "x:y/z/wuff", 0);
+ test_import_url_change_suffix_one("x:y/z/", 0, "wuff", "x:y/z/wuff", 0);
+ test_import_url_change_suffix_one("x:y/z/", 1, "wuff", "x:y/wuff", 0);
+ test_import_url_change_suffix_one("x:y/z/", 2, "wuff", "x:y/wuff", 0);
+}
+
+int main(int argc, char *argv[]) {
+
+ test_setup_logging(LOG_INFO);
+
+ test_import_url_last_component();
+ test_import_url_change_suffix();
+
+ return 0;
+}