feat: Initial clean release of CHM

packages/editor/CodeMirror/utils/formatting/findInlineMatch.test.ts

@@ -0,0 +1,85 @@
+import { EditorSelection, Text as DocumentText } from '@codemirror/state';
+import { RegionSpec } from './RegionSpec';
+import findInlineMatch, { MatchSide } from './findInlineMatch';
+
+describe('findInlineMatch', () => {
+	jest.retryTimes(2);
+
+	const boldSpec: RegionSpec = RegionSpec.of({
+		template: '**',
+	});
+
+	it('matching a bolded region: should return the length of the match', () => {
+		const doc = DocumentText.of(['**test**']);
+		const sel = EditorSelection.range(0, 5);
+
+		// matchStart returns the length of the match
+		expect(findInlineMatch(doc, boldSpec, sel, MatchSide.Start)).toBe(2);
+	});
+
+	it('matching a bolded region: should match the end of a region, if next to the cursor', () => {
+		const doc = DocumentText.of(['**...** test.']);
+		const sel = EditorSelection.range(5, 5);
+		expect(findInlineMatch(doc, boldSpec, sel, MatchSide.End)).toBe(2);
+	});
+
+	it('matching a bolded region: should return -1 if no match is found', () => {
+		const doc = DocumentText.of(['**...** test.']);
+		const sel = EditorSelection.range(3, 3);
+		expect(findInlineMatch(doc, boldSpec, sel, MatchSide.Start)).toBe(-1);
+	});
+
+	it('should match a custom specification of italicized regions', () => {
+		const spec: RegionSpec = {
+			template: { start: '*', end: '*' },
+			matcher: { start: /[*_]/g, end: /[*_]/g },
+		};
+		const testString = 'This is a _test_';
+		const testDoc = DocumentText.of([testString]);
+		const fullSel = EditorSelection.range('This is a '.length, testString.length);
+
+		// should match the start of the region
+		expect(findInlineMatch(testDoc, spec, fullSel, MatchSide.Start)).toBe(1);
+
+		// should match the end of the region
+		expect(findInlineMatch(testDoc, spec, fullSel, MatchSide.End)).toBe(1);
+	});
+
+	const listSpec: RegionSpec = {
+		template: { start: ' - ', end: '' },
+		matcher: {
+			start: /^\s*[-*]\s/g,
+			end: /$/g,
+		},
+	};
+
+	it('matching a custom list: should not match a list if not within the selection', () => {
+		const doc = DocumentText.of(['- Test...']);
+		const sel = EditorSelection.range(1, 6);
+
+		// Beginning of list not selected: no match
+		expect(findInlineMatch(doc, listSpec, sel, MatchSide.Start)).toBe(-1);
+	});
+
+	it('matching a custom list: should match start of selected, unindented list', () => {
+		const doc = DocumentText.of(['- Test...']);
+		const sel = EditorSelection.range(0, 6);
+
+		expect(findInlineMatch(doc, listSpec, sel, MatchSide.Start)).toBe(2);
+	});
+
+	it('matching a custom list: should match start of indented list', () => {
+		const doc = DocumentText.of(['   - Test...']);
+		const sel = EditorSelection.range(0, 6);
+
+		expect(findInlineMatch(doc, listSpec, sel, MatchSide.Start)).toBe(5);
+	});
+
+	it('matching a custom list: should match the end of an item in an indented list', () => {
+		const doc = DocumentText.of(['   - Test...']);
+		const sel = EditorSelection.range(0, 6);
+
+		// Zero-length, but found, selection
+		expect(findInlineMatch(doc, listSpec, sel, MatchSide.End)).toBe(0);
+	});
+});