Normalize test titles

lib/parse-test-args.js

@@ -1,10 +1,12 @@
+const normalize = title => typeof title === 'string' ? title.trim().replace(/\s+/g, ' ') : title;
+
 export default function parseTestArgs(args) {
 	const rawTitle = typeof args[0] === 'string' ? args.shift() : undefined;
 	const receivedImplementationArray = Array.isArray(args[0]);
 	const implementations = receivedImplementationArray ? args.shift() : args.splice(0, 1);
 
 	const buildTitle = implementation => {
-		const title = implementation.title ? implementation.title(rawTitle, ...args) : rawTitle;
+		const title = normalize(implementation.title ? implementation.title(rawTitle, ...args) : rawTitle);
 		return {title, isSet: typeof title !== 'undefined', isValid: typeof title === 'string', isEmpty: !title};
 	};
 

test/snapshot-tests/fixtures/normalized-title-in-snapshots/package.json

@@ -0,0 +1 @@
+{}

test/snapshot-tests/fixtures/normalized-title-in-snapshots/test.js

@@ -0,0 +1,12 @@
+const test = require(process.env.TEST_AVA_IMPORT_FROM);
+
+test('test\r\n\ttitle', t => {
+	t.snapshot('Hello, World!');
+});
+
+test('test\r\n\ttitle', Object.assign(t => {
+	t.snapshot('Hello, World!');
+}, {
+	title: title => `macro\n${title}`
+}));
+

test/snapshot-tests/fixtures/normalized-title-in-stdout/package.json

@@ -0,0 +1 @@
+{}

test/snapshot-tests/fixtures/normalized-title-in-stdout/test.js

@@ -0,0 +1,21 @@
+const test = require(process.env.TEST_AVA_IMPORT_FROM);
+
+test(`a rather wordy test title that is wrapped
+			to  meet  line  length  requirements   in
+			an unconventional way  that may interfere
+			with   report   formatting               `, t => {
+	t.pass();
+});
+
+test('test\r\n\ttitle', Object.assign(t => {
+	t.pass();
+}, {
+	title: title => title
+}));
+
+test('multiline try assertion title', async t => {
+	const firstTry = await t.try(`try assertions
+																can have titles too`, tt => tt.pass());
+	firstTry.commit();
+	t.log(firstTry.title);
+});

test/snapshot-tests/formatting.js

@@ -1,7 +1,10 @@
 import fs from 'fs';
+import os from 'os';
 import path from 'path';
 
 import test from '@ava/test';
+import figures from 'figures';
+import replaceString from 'replace-string';
 
 import {cwd, fixture} from '../helpers/exec.js';
 import {withTemporaryFixture} from '../helpers/with-temporary-fixture.js';
@@ -22,3 +25,43 @@ test('multiline snapshot label should be formatted correctly in the report', asy
 		t.snapshot(report, 'resulting snapshot report');
 	});
 });
+
+test('test title should be normalized in stdout', async t => {
+	await withTemporaryFixture(cwd('normalized-title-in-stdout'), async cwd => {
+		// Run test fixture
+		const result = await fixture(['--update-snapshots'], {
+			cwd,
+			env: {
+				AVA_FORCE_CI: 'not-ci'
+			}
+		});
+
+		// Assert stdout is unchanged
+		t.snapshot(
+			replaceString(
+				replaceString(
+					replaceString(result.stdout, os.EOL, '\n'),
+					figures.main.info, figures.windows.info
+				),
+				figures.main.tick, figures.windows.tick
+			),
+			'stdout');
+	});
+});
+
+test('test title should be normalized in snapshot', async t => {
+	await withTemporaryFixture(cwd('normalized-title-in-snapshots'), async cwd => {
+		// Run test fixture
+		await fixture(['--update-snapshots'], {
+			cwd,
+			env: {
+				AVA_FORCE_CI: 'not-ci'
+			}
+		});
+
+		// Assert report is unchanged
+		const reportPath = path.join(cwd, 'test.js.md');
+		const report = fs.readFileSync(reportPath, {encoding: 'utf8'});
+		t.snapshot(report, 'resulting snapshot report');
+	});
+});

test/snapshot-tests/snapshots/formatting.js.md

@@ -27,3 +27,39 @@ Generated by [AVA](https://avajs.dev).
     ␊
         'Hello, World!'␊
     `
+
+## test title should be normalized in stdout
+
+> stdout
+
+    `␊
+      √ a rather wordy test title that is wrapped to meet line length requirements in an unconventional way that may interfere with report formatting␊
+      √ test title␊
+      √ multiline try assertion title␊
+        i multiline try assertion title ─ try assertions can have titles too␊
+      ─␊
+    ␊
+      3 tests passed`
+
+## test title should be normalized in snapshot
+
+> resulting snapshot report
+
+    `# Snapshot report for \`test.js\`␊
+    ␊
+    The actual snapshot is saved in \`test.js.snap\`.␊
+    ␊
+    Generated by [AVA](https://avajs.dev).␊
+    ␊
+    ## test title␊
+    ␊
+    > Snapshot 1␊
+    ␊
+        'Hello, World!'␊
+    ␊
+    ## macro test title␊
+    ␊
+    > Snapshot 1␊
+    ␊
+        'Hello, World!'␊
+    `