testMatch should find tests in .folders (jestjs#3006)

* testMatch should find tests in .folders

* dont depend on order of paths in tests

Author: zsol

packages/jest-cli/src/SearchSource.js

@@ -77,7 +77,7 @@ const globsToMatcher = (globs: ?Array<Glob>) => {
     return () => true;
   }
 
-  const matchers = globs.map(each => micromatch.matcher(each));
+  const matchers = globs.map(each => micromatch.matcher(each, {dot: true}));
   return (path: Path) => matchers.some(each => each(path));
 };
 

packages/jest-cli/src/__tests__/SearchSource-test.js

@@ -108,10 +108,11 @@ describe('SearchSource', () => {
       return findMatchingTests(config).then(data => {
         const relPaths = data.paths.map(absPath => (
           path.relative(rootDir, absPath)
-        ));
+        )).sort();
         expect(relPaths).toEqual([
+          path.normalize('.hiddenFolder/not-really-a-test.txt'),
           path.normalize('__testtests__/not-really-a-test.txt'),
-        ]);
+        ].sort());
       });
     });
 
@@ -126,10 +127,11 @@ describe('SearchSource', () => {
       return findMatchingTests(config).then(data => {
         const relPaths = data.paths.map(absPath => (
           path.relative(rootDir, absPath)
-        ));
+        )).sort();
         expect(relPaths).toEqual([
+          path.normalize('.hiddenFolder/not-really-a-test.txt'),
           path.normalize('__testtests__/not-really-a-test.txt'),
-        ]);
+        ].sort());
       });
     });
 

packages/jest-cli/src/__tests__/test_root/.hiddenFolder/not-really-a-test.txt

@@ -0,0 +1,3 @@
+// not-really-a-test.txt
+
+require('../module.txt');