fix(MockInstance): resetting scopes on each level

tests/mock-instance-reset/backup.spec.ts

@@ -0,0 +1,46 @@
+let globalVar = 0;
+
+const backupTest = (newValue: typeof globalVar): void => {
+ let backup: typeof globalVar;
+
+ beforeEach(() => {
+ backup = globalVar;
+ globalVar = newValue;
+ });
+
+ afterEach(() => {
+ globalVar = backup;
+ });
+};
+
+describe('mock-instance-reset:backup', () => {
+ it('equals 0 before all', () => {
+ expect(globalVar).toEqual(0);
+ });
+
+ describe('globalVar', () => {
+ backupTest(1);
+ backupTest(2);
+
+ it('equals 2 before each', () => {
+ expect(globalVar).toEqual(2);
+ });
+
+ describe('each', () => {
+ backupTest(3);
+ backupTest(4);
+
+ it('equals 4 after each', () => {
+ expect(globalVar).toEqual(4);
+ });
+ });
+
+ it('resets to 2 after each', () => {
+ expect(globalVar).toEqual(2);
+ });
+ });
+
+ it('resets to 0 after all', () => {
+ expect(globalVar).toEqual(0);
+ });
+});

tests/mock-instance-reset/test.spec.ts

@@ -0,0 +1,68 @@
+const triggers: string[] = [];
+
+describe('mock-instance-reset', () => {
+ describe('test', () => {
+ beforeAll(() => triggers.push('beforeAll:1'));
+ afterAll(() => triggers.push('afterAll:1'));
+
+ beforeAll(() => triggers.push('beforeAll:2'));
+ afterAll(() => triggers.push('afterAll:2'));
+
+ beforeEach(() => triggers.push('beforeEach:1'));
+ beforeEach(() => triggers.push('beforeEach:2'));
+
+ afterEach(() => triggers.push('afterEach:1'));
+ afterEach(() => triggers.push('afterEach:2'));
+
+ it('triggers test #1', () => {
+ expect(1).toEqual(1);
+ });
+
+ it('triggers test #2', () => {
+ expect(2).toEqual(2);
+ });
+
+ describe('nested', () => {
+ beforeAll(() => triggers.push('beforeAll:3'));
+ afterAll(() => triggers.push('afterAll:3'));
+
+ beforeEach(() => triggers.push('beforeEach:3'));
+ afterEach(() => triggers.push('afterEach:3'));
+
+ it('triggers test #3', () => {
+ expect(3).toEqual(3);
+ });
+ });
+ });
+
+ it('has expected order', () => {
+ // first before is called the first
+ // first after is called the last
+ expect(triggers).toEqual([
+ 'beforeAll:1',
+ 'beforeAll:2',
+
+ 'beforeEach:1',
+ 'beforeEach:2',
+ 'afterEach:2',
+ 'afterEach:1',
+
+ 'beforeEach:1',
+ 'beforeEach:2',
+ 'afterEach:2',
+ 'afterEach:1',
+
+ 'beforeAll:3',
+ 'beforeEach:1',
+ 'beforeEach:2',
+ 'beforeEach:3',
+ 'afterEach:3',
+ 'afterEach:2',
+ 'afterEach:1',
+ 'afterAll:3',
+
+ 'afterAll:2',
+ 'afterAll:1',
+ ]);
+ });
+});