AutoFormat tests

packages/fleather/test/widgets/autoformats_test.dart

@@ -0,0 +1,143 @@
+import 'package:fleather/fleather.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  late AutoFormats autoformats;
+
+  setUp(() {
+    autoformats = AutoFormats.fallback();
+  });
+
+  group('Link detection', () {
+    test('Detects link with \'http\' and formats accordingly', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text and a https://fleather-editor.github.io\n'}
+      ]);
+      final selection = autoformats.run(document, 54, ' ');
+      expect(selection, const TextSelection.collapsed(offset: 55));
+      final attributes = document.toDelta().toList()[1].attributes;
+      expect(attributes, isNotNull);
+      expect(attributes!.containsKey(ParchmentAttribute.link.key), isTrue);
+      expect(attributes[ParchmentAttribute.link.key],
+          'https://fleather-editor.github.io');
+    });
+
+    test('Detects link without \'http\' and formats accordingly', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text and a www.github.com\n'}
+      ]);
+      final selection = autoformats.run(document, 35, ' ');
+      expect(selection, const TextSelection.collapsed(offset: 36));
+      final attributes = document.toDelta().toList()[1].attributes;
+      expect(attributes, isNotNull);
+      expect(attributes!.containsKey(ParchmentAttribute.link.key), isTrue);
+      // add https when missing
+      expect(attributes[ParchmentAttribute.link.key], 'https://www.github.com');
+      expect(autoformats.undoPosition, 35);
+    });
+
+    test('No trigger of detection if inserting other than space', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text and a https://fleather-editor.github.io\n'}
+      ]);
+      final selection = autoformats.run(document, 54, 'p');
+      expect(selection, null);
+      expect(autoformats.hasActiveSuggestion, isFalse);
+    });
+
+    test('Deleting at candidate position, undoes link formatting', () {
+      const text = 'Some long text and a https://fleather-editor.github.io\n';
+      final document = ParchmentDocument.fromJson([
+        {'insert': text}
+      ]);
+      autoformats.run(document, 54, ' ');
+      final undoSelection = autoformats.undoActive(document);
+      expect(undoSelection, const TextSelection.collapsed(offset: 54));
+      expect(document.toDelta().length, 1);
+      expect(document.toDelta().first.isInsert, isTrue);
+      expect(document.toDelta().first.data, text);
+    });
+
+    test('Cancels suggestion', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text and a https://fleather-editor.github.io\n'}
+      ]);
+      autoformats.run(document, 54, ' ');
+      autoformats.cancelActive();
+      expect(autoformats.hasActiveSuggestion, isFalse);
+    });
+  });
+
+  group('Markdown shortcuts', () {
+    test('Detects single character shortcuts', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text\n* \nthat continues\n'}
+      ]);
+      final selection = autoformats.run(document, 16, ' ');
+      expect(selection, const TextSelection.collapsed(offset: 15));
+      final attributes = document.toDelta().toList()[1].attributes;
+      expect(attributes, isNotNull);
+      expect(attributes!.containsKey(ParchmentAttribute.block.key), isTrue);
+      expect(attributes[ParchmentAttribute.block.key],
+          ParchmentAttribute.block.bulletList.value);
+    });
+
+    test('Detects 2 character shortcuts', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text\n1. \nthat continues\n'}
+      ]);
+      final selection = autoformats.run(document, 17, ' ');
+      expect(selection, const TextSelection.collapsed(offset: 15));
+      final attributes = document.toDelta().toList()[1].attributes;
+      expect(attributes, isNotNull);
+      expect(attributes!.containsKey(ParchmentAttribute.block.key), isTrue);
+      expect(attributes[ParchmentAttribute.block.key],
+          ParchmentAttribute.block.numberList.value);
+    });
+
+    test('Detects 3 character shortcuts', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text\n```\nthat continues\n'}
+      ]);
+      final selection = autoformats.run(document, 17, '`');
+      expect(selection, const TextSelection.collapsed(offset: 15));
+      final attributes = document.toDelta().toList()[1].attributes;
+      expect(attributes, isNotNull);
+      expect(attributes!.containsKey(ParchmentAttribute.block.key), isTrue);
+      expect(attributes[ParchmentAttribute.block.key],
+          ParchmentAttribute.block.code.value);
+    });
+
+    test('No trigger of detection if inserting other than space', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text\n* \nthat continues\n'}
+      ]);
+      final selection = autoformats.run(document, 16, 'p');
+      expect(selection, null);
+      expect(autoformats.hasActiveSuggestion, isFalse);
+    });
+
+    test('Deleting at candidate position, undoes link formatting', () {
+      const text = 'Some long text\n* \nthat continues\n';
+      final document = ParchmentDocument.fromJson([
+        {'insert': text}
+      ]);
+      autoformats.run(document, 16, ' ');
+      final undoSelection = autoformats.undoActive(document);
+      expect(undoSelection, const TextSelection.collapsed(offset: 17));
+      expect(document.toDelta().length, 1);
+      expect(document.toDelta().first.isInsert, isTrue);
+      expect(document.toDelta().first.data, text);
+    });
+
+    test('Cancels suggestion', () {
+      final document = ParchmentDocument.fromJson([
+        {'insert': 'Some long text\n* \nthat continues\n'}
+      ]);
+      autoformats.run(document, 54, ' ');
+      autoformats.cancelActive();
+      expect(autoformats.hasActiveSuggestion, isFalse);
+    });
+  });
+}