Strings recipes for the Dart Cookbook

recipes/test/core/strings/escaping_characters_test.dart

Index: recipes/test/core/strings/escaping_characters_test.dart
diff --git a/recipes/test/core/strings/escaping_characters_test.dart b/recipes/test/core/strings/escaping_characters_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..5a334a00c2681aef82a79d151ad1d331341b4483
--- /dev/null
+++ b/recipes/test/core/strings/escaping_characters_test.dart
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+library escaping_characters_test;
+
+import 'package:unittest/unittest.dart';
+
+void main() { 
+  
+  group('escaping characters', () {
+    var name = '''Wile
+Coyote''';
+    
+    test('using an escape character', () {
+      expect('Wile\nCoyote', equals('''Wile
+Coyote'''));
+    });
+    
+    test('using hex notation', () {
+      expect('Wile\x0ACoyote', equals('''Wile
+Coyote'''));
+    });
+    
+    test('using unicode notation', () {
+      expect('Wile\u000ACoyote', equals('''Wile
+Coyote'''));
+      expect('Wile\u{000A}Coyote', equals('''Wile
+Coyote'''));
+    });
+    
+    test('with non-special character', () {
+      expect('Wile \E Coyote', equals('Wile E Coyote'));
+    });
+
+    test('with a variable', () {
+      var superGenius = 'Wile Coyote';
+      expect('\$superGenius', equals(r'$superGenius'));
+    });
+  });
+}