test: add a simple test for the qr printing code

Ideally, we'd read back what we wrote, but that would have been
much more complicated. But just writing stuff is useful to test under
valgrind or manually.

diff --git a/src/test/meson.build b/src/test/meson.build
index ac1182e37a21d2903db5dd56a73f6baf150ae54a..71f3e121783abb4d5440533cba5ed2c8f725ace6 100644 (file)
--- a/src/test/meson.build
+++ b/src/test/meson.build
@@ -808,6 +808,10 @@ tests += [
         [['src/test/test-psi-util.c'],
          [],
          []],
+
+        [['src/test/test-qrcode-util.c'],
+         [libshared],
+         [libdl]],
 ]
 
 ############################################################

diff --git a/src/test/test-qrcode-util.c b/src/test/test-qrcode-util.c
new file mode 100644 (file)
index 0000000..c4e2894
--- /dev/null
+++ b/src/test/test-qrcode-util.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "locale-util.h"
+#include "main-func.h"
+#include "qrcode-util.h"
+#include "tests.h"
+
+static int run(int argc, char **argv) {
+        int r;
+
+        test_setup_logging(LOG_DEBUG);
+
+        assert_se(setenv("SYSTEMD_COLORS", "1", 1) == 0); /* Force the qrcode to be printed */
+
+        r = print_qrcode(stdout, "This should say \"TEST\"", "TEST");
+        if (r == -EOPNOTSUPP)
+                return log_tests_skipped("not supported");
+        if (r < 0)
+                return log_error_errno(r, "Failed to print QR code: %m");
+        return 0;
+}
+
+DEFINE_MAIN_FUNCTION(run);