fix: improve scope-enum unit tests

@commitlint/rules/src/scope-enum.test.ts

@@ -24,9 +24,10 @@ test('scope-enum with plain message and always should succeed empty enum', async
 });
 
 test('scope-enum with plain message and never should error empty enum', async () => {
-	const [actual] = scopeEnum(await parsed.plain, 'never', []);
+	const [actual, message] = scopeEnum(await parsed.plain, 'never', []);
 	const expected = false;
 	expect(actual).toEqual(expected);
+	expect(message).toEqual('scope must not be one of []');
 });
 
 test('with plain message should succeed correct enum', async () => {
@@ -36,15 +37,17 @@ test('with plain message should succeed correct enum', async () => {
 });
 
 test('scope-enum with plain message should error false enum', async () => {
-	const [actual] = scopeEnum(await parsed.plain, 'always', ['foo']);
+	const [actual, message] = scopeEnum(await parsed.plain, 'always', ['foo']);
 	const expected = false;
 	expect(actual).toEqual(expected);
+	expect(message).toEqual('scope must be one of [foo]');
 });
 
 test('scope-enum with plain message should error forbidden enum', async () => {
-	const [actual] = scopeEnum(await parsed.plain, 'never', ['bar']);
+	const [actual, message] = scopeEnum(await parsed.plain, 'never', ['bar']);
 	const expected = false;
 	expect(actual).toEqual(expected);
+	expect(message).toEqual('scope must not be one of [bar]');
 });
 
 test('scope-enum with plain message should succeed forbidden enum', async () => {
@@ -97,18 +100,27 @@ test('scope-enum with empty scope and never should succeed empty enum', async ()
 
 test('scope-enum with multiple scopes should succeed on message with multiple scopes', async () => {
 	const [actual] = scopeEnum(await parsed.multiple, 'never', ['bar', 'baz']);
-	const expected = false;
+	const expected = true;
+	expect(actual).toEqual(expected);
+});
+
+test('scope-enum with multiple scopes should succeed on message with forbidden enum', async () => {
+	const [actual, message] = scopeEnum(await parsed.multiple, 'never', [
+		'bar',
+		'qux',
+	]);
+	const expected = true;
 	expect(actual).toEqual(expected);
 });
 
-test('scope-enum with multiple scopes should error on message with forbidden enum', async () => {
-	const [actual] = scopeEnum(await parsed.multiple, 'never', ['bar', 'qux']);
+test('scope-enum with multiple scope should succeed on message with superfluous scope', async () => {
+	const [actual, message] = scopeEnum(await parsed.multiple, 'never', ['bar']);
 	const expected = true;
 	expect(actual).toEqual(expected);
 });
 
-test('scope-enum with multiple scopes should error on message with superfluous scope', async () => {
-	const [actual] = scopeEnum(await parsed.multiple, 'never', ['bar']);
+test('scope-enum with multiple scope should succeed on message with multiple scopes', async () => {
+	const [actual] = scopeEnum(await parsed.multiple, 'always', ['bar', 'baz']);
 	const expected = true;
 	expect(actual).toEqual(expected);
 });