books

packages/anima/test/anima_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:anima/anima.dart';
+
+void main() {
+  test('adds one to input values', () {
+    final calculator = Calculator();
+    expect(calculator.addOne(2), 3);
+    expect(calculator.addOne(-7), -6);
+    expect(calculator.addOne(0), 1);
+  });
+}