test(interval): add test cases for inverted (#53)

albertms10 · Apr 15, 2023 · ba43eba · ba43eba
1 parent d8b80b6
commit ba43eba
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diff --git a/test/src/interval/int_interval_extension_test.dart b/test/src/interval/int_interval_extension_test.dart
@@ -102,5 +102,16 @@ void main() {
         expect(13.simplified, 6);
       });
     });
+
+    group('.inverted', () {
+      test('should return the inverted int interval', () {
+        expect(2.inverted, 7);
+        expect(4.inverted, 5);
+        expect(8.inverted, 1);
+        expect(9.inverted, 7);
+        expect(10.inverted, 6);
+        expect(13.inverted, 3);
+      });
+    });
   });
 }
diff --git a/test/src/interval/interval_test.dart b/test/src/interval/interval_test.dart
@@ -277,6 +277,35 @@ void main() {
       });
     });
 
+    group('.inverted', () {
+      test('should return the inverted of this Interval', () {
+        expect(
+          const Interval.perfect(1, PerfectQuality.augmented).inverted,
+          const Interval.perfect(8, PerfectQuality.diminished),
+        );
+        expect(
+          const Interval.perfect(1, PerfectQuality.perfect).inverted,
+          const Interval.perfect(8, PerfectQuality.perfect),
+        );
+        expect(
+          const Interval.imperfect(2, ImperfectQuality.major).inverted,
+          const Interval.imperfect(7, ImperfectQuality.minor),
+        );
+        expect(
+          const Interval.imperfect(3, ImperfectQuality.minor).inverted,
+          const Interval.imperfect(6, ImperfectQuality.major),
+        );
+        expect(
+          const Interval.perfect(5, PerfectQuality.diminished).inverted,
+          const Interval.perfect(4, PerfectQuality.augmented),
+        );
+        expect(
+          const Interval.perfect(4, PerfectQuality.diminished).inverted,
+          const Interval.perfect(5, PerfectQuality.augmented),
+        );
+      });
+    });
+
     group('.toString()', () {
       test('should return the string representation of this Interval', () {
         expect(