1 files changed, 67 insertions, 0 deletions
diff --git a/lv2/lv2plug.in/ns/ext/contexts/test.c b/lv2/lv2plug.in/ns/ext/contexts/test.c
new file mode 100644
index 0000000..ca41a10
--- /dev/null
+++ b/lv2/lv2plug.in/ns/ext/contexts/test.c
@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <limits.h>
+#include <assert.h>
+#include <unistd.h>
+#include "contexts.h"
+
+#define TEST_ASSERT(check) do {\
+	if (!(check)) {\
+		fprintf(stderr, "Failure at line %d: %s\n", __LINE__, #check);\
+		assert(false);\
+		_exit(1);\
+	}\
+} while (0)
+
+#define NUM_PORTS 64
+
+void
+print_flags(void* flags)
+{
+	for (int i = NUM_PORTS; i >= 0; --i)
+		printf((lv2_contexts_port_is_valid(flags, i)) ? "1" : "0");
+	printf("\n");
+}
+
+
+int
+main()
+{
+	uint64_t flags = 0;
+	print_flags(&flags);
+
+	lv2_contexts_set_port_valid(&flags, 16);
+	print_flags(&flags);
+	for (int i = 0; i < NUM_PORTS; ++i) {
+		if (i == 16) {
+			TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i));
+		} else {
+			TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i));
+		}
+	}
+
+	lv2_contexts_set_port_valid(&flags, 46);
+	lv2_contexts_set_port_valid(&flags, 0);
+	print_flags(&flags);
+	for (int i = 0; i < NUM_PORTS; ++i) {
+		if (i == 0 || i == 16 || i == 46) {
+			TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i));
+		} else {
+			TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i));
+		}
+	}
+
+	lv2_contexts_unset_port_valid(&flags, 16);
+	print_flags(&flags);
+	for (int i = 0; i < NUM_PORTS; ++i) {
+		if (i == 0 || i == 46) {
+			TEST_ASSERT(lv2_contexts_port_is_valid(&flags, i));
+		} else {
+			TEST_ASSERT(!lv2_contexts_port_is_valid(&flags, i));
+		}
+	}
+
+	return 0;
+}
+