1 files changed, 43 insertions, 0 deletions
diff --git a/tests/testing.c b/tests/testing.c
new file mode 100644
index 0000000..65012f9
--- /dev/null
+++ b/tests/testing.c
@@ -0,0 +1,43 @@
+#include "../src/testing.c"
+
+
+int
+main(void) {
+	int rc = 0;
+
+	test_start("testing.c");
+	const int should_overwrite = 1;
+
+	if (unsetenv(ENVVAR_NAME)) {
+		perror("unsetenv(\"NO_COLOR\")");
+		rc = -1;
+		goto out;
+	}
+	{
+		testing("unset NO_COLOR");
+		test_ok();
+	}
+
+	if (setenv(ENVVAR_NAME, "", should_overwrite)) {
+		perror("setenv(\"NO_COLOR\", \"\", 1)");
+		rc = -1;
+		goto out;
+	}
+	{
+		testing("empty NO_COLOR");
+		test_ok();
+	}
+
+	if (setenv(ENVVAR_NAME, "something", should_overwrite)) {
+		perror("setenv(\"NO_COLOR\", \"something\", 1)");
+		rc = -1;
+		goto out;
+	}
+	{
+		testing("defined NO_COLOR");
+		test_ok();
+	}
+
+out:
+	return !!rc;
+}