test(color_extension): adapt opacityThresholds tests

albertms10 · Mar 26, 2023 · eca0cbb · eca0cbb
1 parent 1e26ae3
commit eca0cbb
Showing 1 changed file with 53 additions and 2 deletions.
diff --git a/test/utils/color_extension_test.dart b/test/utils/color_extension_test.dart
@@ -8,7 +8,7 @@ void main() {
       test('should return a valid threshold to color Map', () {
         const color = Colors.blue;
         const thresholds = {
-          1: Color(0x332196f3),
+          1: Color(0x002196f3),
           4: Color(0x552196f3),
           8: Color(0xaa2196f3),
           12: Color(0xff2196f3),
@@ -19,13 +19,64 @@ void main() {
         );
       });
 
+      test(
+        'should return a valid threshold to color Map with custom minOpacity',
+        () {
+          const color = Colors.red;
+          const thresholds = {
+            1: Color(0x40f44336),
+            2: Color(0x70f44336),
+            4: Color(0x9ff44336),
+            6: Color(0xcff44336),
+            8: Color(0xfff44336),
+          };
+          expect(
+            color.opacityThresholds(
+              highestValue: 8,
+              samples: 4,
+              minOpacity: 0.25,
+            ),
+            thresholds,
+          );
+        },
+      );
+
       test('should throw a RangeError if samples is not greater than zero', () {
         const color = Colors.blue;
+        expect(
+          () => color.opacityThresholds(highestValue: 12, samples: 0),
+          throwsA(_samplesRangeErrorPredicate),
+        );
         expect(
           () => color.opacityThresholds(highestValue: 12, samples: -1),
-          throwsRangeError,
+          throwsA(_samplesRangeErrorPredicate),
+        );
+      });
+
+      test('should throw a RangeError if minOpacity is out of bounds', () {
+        const color = Colors.blue;
+        expect(
+          () => color.opacityThresholds(
+            highestValue: 12,
+            samples: 3,
+            minOpacity: -0.1,
+          ),
+          throwsA(_minOpacityRangeErrorPredicate),
+        );
+        expect(
+          () => color.opacityThresholds(
+            highestValue: 12,
+            samples: 3,
+            minOpacity: 1.01,
+          ),
+          throwsA(_minOpacityRangeErrorPredicate),
         );
       });
     });
   });
 }
+
+final _samplesRangeErrorPredicate =
+    predicate((e) => e is RangeError && e.name == 'samples');
+final _minOpacityRangeErrorPredicate =
+    predicate((e) => e is RangeError && e.name == 'minOpacity');