Hook error() and error_at_line() if available.

[coloredstderr/coloredstderr.git] / tests / example_error.c

diff --git a/tests/example_error.c b/tests/example_error.c
new file mode 100644 (file)
index 0000000..04eca8d
--- /dev/null
+++ b/tests/example_error.c
@@ -0,0 +1,57 @@
+/*
+ * Test error() and error_at_line(). Non-standard, GNU only.
+ *
+ * Copyright (C) 2013  Simon Ruderich
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _GNU_SOURCE /* for program_invocation_name */
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <error.h>
+
+void (*error_print_progname)(void);
+
+
+static void print_prognmae(void) {
+    fprintf(stderr, "PROG");
+}
+
+
+int main(int argc, char **argv) {
+    program_invocation_name = "./example_error";
+
+    error(0, 0, "<message>");
+    error_at_line(0, 0, "file", 42, "<message>");
+
+    error(0, ENOMEM, "<message>");
+    error_at_line(0, ENOMEM, "file", 42, "<message>");
+    error_at_line(0, ENOMEM, "file", 42, "<message>");
+
+    error_print_progname = print_prognmae;
+    error_one_per_line = 1;
+
+    error(0, 0, "<message>");
+    error_at_line(0, 0, "file", 42, "<message>");
+
+    error(0, ENOMEM, "<message>");
+    error_at_line(0, ENOMEM, "file", 42, "<message>");
+    error_at_line(0, ENOMEM, "file", 42, "<message>");
+
+    /* Exit codes are not tested. */
+
+    return EXIT_SUCCESS;
+}