test: removes any tsconfig.json in the way of the tests

Author: huafu

package.json

@@ -60,7 +60,12 @@
       "js",
       "jsx",
       "json"
-    ]
+    ],
+    "globals": {
+      "ts-jest": {
+        "tsConfigFile": "tsconfig.base.json"
+      }
+    }
   },
   "dependencies": {
     "closest-file-data": "^0.1.4",

scripts/tests.js

@@ -16,7 +16,7 @@ function getDirectories(rootDir) {
 function createIntegrationMock() {
   const testsRoot = 'tests';
   const testCaseFolders = getDirectories(testsRoot).filter(function(testDir) {
-    return !(testDir.startsWith('__') && testDir.endsWith('__'));
+    return !/^(?:utils|__.+__)$/.test(testDir);
   });
 
   testCaseFolders.forEach(directory => {

src/utils/get-ts-config.ts

@@ -110,7 +110,7 @@ function readCompilerOptions(
 // }
 
 // we don't need any data, just its full path
-const tsConfigReader = { basename: TSCONFIG_FILENAME, read: () => null };
+const tsConfigReader = { basename: TSCONFIG_FILENAME, read: () => 0 };
 
 function findTSConfigPath(
   jestConfig: jest.ProjectConfig,

tests/__tests__/tsconfig-comments.spec.ts

@@ -12,6 +12,7 @@ describe('parse tsconfig with comments', () => {
   beforeEach(() => {
     // Set up some mocked out file info before each test
     ((path as any) as MockedPath).__setBaseDir('./tests/tsconfig-test');
+    getTSConfig.cache.clear();
   });
 
   it('the two config files should exist', () => {

tests/__tests__/tsconfig-default.spec.ts

@@ -15,6 +15,15 @@ describe('get default ts config', () => {
     getTSConfig.cache.clear();
   });
 
+  it('should bail when no default tsconfig.json found', () => {
+    // there is no tsconfig file in that test module
+    ((path as any) as MockedPath).__setBaseDir('./tests/jestconfig-test');
+
+    expect(() => getTSConfig(jestConfig.jestconfigTest(null))).toThrowError(
+      /unable to find ts configuration file/i,
+    );
+  });
+
   it('should correctly read tsconfig.json', () => {
     const result = getTSConfig(jestConfig.tsconfigTest(null));
 
@@ -97,6 +106,5 @@ describe('get default ts config', () => {
 
     expect(getTSJestConfig({ globals: { 'ts-jest': {} } })).toEqual({});
     expect(getTSJestConfig({})).toEqual({});
-    // expect(getTSJestConfig(null)).toEqual({});
   });
 });

tests/__tests__/tsconfig-string.spec.ts

@@ -9,6 +9,7 @@ describe('get ts config from string', () => {
   beforeEach(() => {
     // Set up some mocked out file info before each test
     (path as any).__setBaseDir('./tests/tsconfig-test');
+    getTSConfig.cache.clear();
   });
 
   describe('new behaviour (tsConfigFile & tsConfig)', () => {

tests/tsconfig.json

@@ -1,5 +1,5 @@
 {
-  "extends": "./tsconfig.json",
+  "extends": "./tsconfig.base.json",
   "compilerOptions": {
     "sourceMap": false,
     "removeComments": true,