1 files changed, 32 insertions, 0 deletions
diff --git a/flags/tests/default_bool.ts b/flags/tests/default_bool.ts
new file mode 100755
index 000000000..92684ad7b
--- /dev/null
+++ b/flags/tests/default_bool.ts
@@ -0,0 +1,32 @@
+import { test, assertEqual } from "https://deno.land/x/testing/testing.ts";
+import parseArgs from "../index.ts";
+
+test(function booleanDefaultTrue() {
+    const argv = parseArgs([], {
+        boolean: 'sometrue',
+        default: { sometrue: true }
+    });
+    assertEqual(argv.sometrue, true);
+});
+
+test(function booleanDefaultFalse() {
+    const argv = parseArgs([], {
+        boolean: 'somefalse',
+        default: { somefalse: false }
+    });
+    assertEqual(argv.somefalse, false);
+});
+
+test(function booleanDefaultNull() {
+    const argv = parseArgs([], {
+        boolean: 'maybe',
+        default: { maybe: null }
+    });
+    assertEqual(argv.maybe, null);
+    const argv2 = parseArgs(['--maybe'], {
+        boolean: 'maybe',
+        default: { maybe: null }
+    });
+    assertEqual(argv2.maybe, true);
+
+})