Change TestPathPatterns.{validate => isValid}

packages/jest-config/src/normalize.ts

@@ -408,9 +408,7 @@ const buildTestPathPatterns = (
   const config = {rootDir};
   const testPathPatterns = new TestPathPatterns(patterns, config);
 
-  try {
-    testPathPatterns.validate();
-  } catch {
+  if (!testPathPatterns.isValid()) {
     clearLine(process.stdout);
 
     // eslint-disable-next-line no-console

packages/jest-types/src/TestPathPatterns.ts

@@ -61,10 +61,15 @@ export default class TestPathPatterns {
   }
 
   /**
-   * Throw an error if the patterns don't form a valid regex.
+   * Return true if the patterns are valid.
    */
-  validate(): void {
-    this.toRegex();
+  isValid(): boolean {
+    try {
+      this.toRegex();
+      return true;
+    } catch {
+      return false;
+    }
   }
 
   /**

packages/jest-types/src/__tests__/TestPathPatterns.test.ts

@@ -36,25 +36,23 @@ describe('TestPathPatterns', () => {
     });
   });
 
-  describe('validate', () => {
+  describe('isValid', () => {
     it('succeeds for empty patterns', () => {
       const testPathPatterns = new TestPathPatterns([], config);
-      expect(() => testPathPatterns.validate()).not.toThrow();
+      expect(testPathPatterns.isValid()).toBe(true);
     });
 
     it('succeeds for valid patterns', () => {
       const testPathPatterns = new TestPathPatterns(['abc+', 'z.*'], config);
-      expect(() => testPathPatterns.validate()).not.toThrow();
+      expect(testPathPatterns.isValid()).toBe(true);
     });
 
     it('fails for at least one invalid pattern', () => {
       const testPathPatterns = new TestPathPatterns(
         ['abc+', '(', 'z.*'],
         config,
       );
-      expect(() => testPathPatterns.validate()).toThrow(
-        'Invalid regular expression',
-      );
+      expect(testPathPatterns.isValid()).toBe(false);
     });
   });