fix(core): use correct report message #192

Author: marionebl

@commitlint/core/src/rules/subject-case.js

@@ -29,6 +29,6 @@ export default (parsed, when, value) => {
 
 	return [
 		negated(when) ? !result : result,
-		message([`subject must`, negated ? `not` : null, `be ${list}`])
+		message([`subject must`, negated(when) ? `not` : null, `be ${list}`])
 	];
 };

@commitlint/core/src/rules/subject-case.test.js

@@ -251,3 +251,21 @@ test('with startcase subject should succeed for "always startcase"', async t =>
 	const expected = true;
 	t.is(actual, expected);
 });
+
+test('should use expected message with "always"', async t => {
+	const [, message] = subjectCase(
+		await parsed.uppercase,
+		'always',
+		'lower-case'
+	);
+	t.true(message.indexOf('must be lower-case') > -1);
+});
+
+test('should use expected message with "never"', async t => {
+	const [, message] = subjectCase(
+		await parsed.uppercase,
+		'never',
+		'upper-case'
+	);
+	t.true(message.indexOf('must not be upper-case') > -1);
+});