Best JavaScript code snippet using ng-mocks
try.js
Source:try.js  
...99  }100}101assertEquals(0, return_from_nested_catch(0));102assertEquals(1, return_from_nested_catch(1));103function return_from_nested_finally(x) {104  var a = [x-2];105  try {106    try {107      return a;108    } finally {109      a[0]++;110    }111  } finally {112    a[0]++;113  }114}115assertEquals(0, return_from_nested_finally(0)[0]);116assertEquals(1, return_from_nested_finally(1)[0]);117function break_from_catch(x) {118  x--;119 L:120  {121    try {122      x++;123      if (false) return -1;124      break L;125    } catch (o) {126      x--;127    }128  }129  return x;130}131assertEquals(0, break_from_catch(0));132assertEquals(1, break_from_catch(1));133function break_from_finally(x) {134 L:135  {136    try {137      x++;138      if (false) return -1;139      break L;140    } finally {141      x--;142    }143    x--;144  }145  return x;146}147assertEquals(0, break_from_finally(0), "break from finally");148assertEquals(1, break_from_finally(1), "break from finally");149function continue_from_catch(x) {150  x--;151  var cont = true;152  while (cont) {153    try {154      x++;155      if (false) return -1;156      cont = false;157      continue;158    } catch (o) {159      x--;160    }161  }162  return x;163}164assertEquals(0, continue_from_catch(0));165assertEquals(1, continue_from_catch(1));166function continue_from_finally(x) {167  var cont = true;168  while (cont) {169    try {170      x++;171      if (false) return -1;172      cont = false;173      continue;174    } finally {175      x--;176    }177    x--;178  }179  return x;180}181assertEquals(0, continue_from_finally(0));182assertEquals(1, continue_from_finally(1));183function continue_alot_from_finally(x) {184  var j = 0;185  for (var i = 0; i < x;) {186    try {187      j++;188      continue;189      j++;  // should not happen190    } finally {191      i++; // must happen192    }193    j++; // should not happen194  }195  return j;196}197assertEquals(100, continue_alot_from_finally(100));198assertEquals(200, continue_alot_from_finally(200));199function break_from_nested_catch(x) {200  x -= 2;201 L:202  {203    try {204      x++;205      try {206        x++;207        if (false) return -1;208        break L;209      } catch (o) {210        x--;211      }212    } catch (o) {213      x--;214    }215  }216  return x;217}218assertEquals(0, break_from_nested_catch(0));219assertEquals(1, break_from_nested_catch(1));220function break_from_nested_finally(x) {221 L:222  {223    try {224      x++;225      try {226        x++;227        if (false) return -1;228        break L;229      } finally {230        x--;231      }232    } finally {233      x--;234    }235    x--; // should not happen236  }237  return x;238}239assertEquals(0, break_from_nested_finally(0));240assertEquals(1, break_from_nested_finally(1));241function continue_from_nested_catch(x) {242  x -= 2;243  var cont = true;244  while (cont) {245    try {246      x++;247      try {248        x++;249        if (false) return -1;250        cont = false;251        continue;252      } catch (o) {253        x--;254      }255    } catch (o) {256      x--;257    }258  }259  return x;260}261assertEquals(0, continue_from_nested_catch(0));262assertEquals(1, continue_from_nested_catch(1));263function continue_from_nested_finally(x) {264  var cont = true;265  while (cont) {266    try {267      x++;268      try {269        x++;270        if (false) return -1;271        cont = false;272        continue;273      } finally {274        x--;275      }276    } finally {277      x--;278    }279    x--;  // should not happen280  }281  return x;282}283assertEquals(0, continue_from_nested_finally(0));284assertEquals(1, continue_from_nested_finally(1));285var caught = false;286var finalized = false;287var broke = true;288L: try {289  break L;290  broke = false;291} catch (o) {292  caught = true;293} finally {294  finalized = true;295}296assertTrue(broke);297assertFalse(caught);298assertTrue(finalized);299function return_from_nested_finally_in_finally() {300  try {301    return 1;302  } finally {303    try {304      return 2;305    } finally {306      return 42;307    }308  }309}310assertEquals(42, return_from_nested_finally_in_finally());311function break_from_nested_finally_in_finally() {312  L: try {313    return 1;314  } finally {315    try {316      return 2;317    } finally {318      break L;319    }320  }321  return 42;322}323assertEquals(42, break_from_nested_finally_in_finally());324function continue_from_nested_finally_in_finally() {325  do {326    try {327      return 1;328    } finally {329      try {330        return 2;331      } finally {332        continue;333      }334    }335  } while (false);336  return 42;337}...try-completion.js
Source:try-completion.js  
1var BUGNUMBER = 819125;2var summary = "try block should return try value if finally returned normally";3print(BUGNUMBER + ": " + summary);4function expectTryValue(code, isUndefined) {5  assertEq(eval(code), isUndefined ? undefined : 'try');6}7function expectCatchValue(code, isUndefined) {8  assertEq(eval(code), isUndefined ? undefined : 'catch');9}10function expectFinallyValue(code, isUndefined) {11  assertEq(eval(code), isUndefined ? undefined : 'finally');12}13// ==== finally: normal ====14// try: normal15// finally: normal16expectTryValue(`17try {18  'try';19} finally {20  'finally';21}22`);23// try: normal without value24// finally: normal25expectTryValue(`26try {27} finally {28  'finally';29}30`, true);31// try: break32// finally: normal33expectTryValue(`34while (true) {35  try {36    'try';37    break;38  } finally {39    'finally';40  }41}42`);43// try: break without value44// finally: normal45expectTryValue(`46while (true) {47  try {48    break;49  } finally {50    'finally';51  }52}53`, true);54// try: continue55// finally: normal56expectTryValue(`57do {58  try {59    'try';60    continue;61  } finally {62    'finally';63  }64} while (false);65`);66// try: continue without value67// finally: normal68expectTryValue(`69do {70  try {71    continue;72  } finally {73    'finally';74  }75} while (false);76`, true);77// try: throw78// catch: normal79// finally: normal80expectCatchValue(`81try {82  'try';83  throw 'exception';84} catch (e) {85  'catch';86} finally {87  'finally';88}89`);90// try: throw91// catch: normal92// finally: normal93expectCatchValue(`94try {95  'try';96  throw 'exception';97} catch (e) {98  'catch';99} finally {100  'finally';101}102`);103// try: throw104// catch: normal without value105// finally: normal106expectCatchValue(`107try {108  'try';109  throw 'exception';110} catch (e) {111} finally {112  'finally';113}114`, true);115// try: throw116// catch: normal without value117// finally: normal118expectCatchValue(`119try {120  'try';121  throw 'exception';122} catch (e) {123} finally {124  'finally';125}126`, true);127// try: throw128// catch: break129// finally: normal130expectCatchValue(`131while (true) {132  try {133    'try';134    throw 'exception';135  } catch (e) {136    'catch';137    break;138  } finally {139    'finally';140  }141}142`);143// try: throw144// catch: break without value145// finally: normal146expectCatchValue(`147while (true) {148  try {149    'try';150    throw 'exception';151  } catch (e) {152    break;153  } finally {154    'finally';155  }156}157`, true);158// try: throw159// catch: continue160// finally: normal161expectCatchValue(`162do {163  try {164    'try';165    throw 'exception';166  } catch (e) {167    'catch';168    continue;169  } finally {170    'finally';171  }172} while (false);173`);174// try: throw175// catch: continue without value176// finally: normal177expectCatchValue(`178do {179  try {180    'try';181    throw 'exception';182  } catch (e) {183    continue;184  } finally {185    'finally';186  }187} while (false);188`, true);189// ==== finally: break ====190// try: normal191// finally: break192expectFinallyValue(`193while (true) {194  try {195    'try';196  } finally {197    'finally';198    break;199  }200}201`);202// try: normal203// finally: break without value204expectFinallyValue(`205while (true) {206  try {207    'try';208  } finally {209    break;210  }211}212`, true);213// try: break214// finally: break215expectFinallyValue(`216while (true) {217  try {218    'try';219    break;220  } finally {221    'finally';222    break;223  }224}225`);226// try: break227// finally: break without value228expectFinallyValue(`229while (true) {230  try {231    'try';232    break;233  } finally {234    break;235  }236}237`, true);238// try: continue239// finally: break240expectFinallyValue(`241do {242  try {243    'try';244    continue;245  } finally {246    'finally';247    break;248  }249} while (false);250`);251// try: continue252// finally: break without value253expectFinallyValue(`254do {255  try {256    'try';257    continue;258  } finally {259    break;260  }261} while (false);262`, true);263// try: throw264// catch: normal265// finally: break266expectFinallyValue(`267while (true) {268  try {269    'try';270    throw 'exception';271  } catch (e) {272    'catch';273  } finally {274    'finally';275    break;276  }277}278`, false);279// try: throw280// catch: normal281// finally: break without value282expectFinallyValue(`283while (true) {284  try {285    'try';286    throw 'exception';287  } catch (e) {288    'catch';289  } finally {290    break;291  }292}293`, true);294// ==== finally: continue ====295// try: normal296// finally: continue297expectFinallyValue(`298do {299  try {300    'try';301  } finally {302    'finally';303    continue;304  }305} while (false);306`);307// try: normal308// finally: continue without value309expectFinallyValue(`310do {311  try {312    'try';313  } finally {314    continue;315  }316} while (false);317`, true);318// try: break319// finally: continue320expectFinallyValue(`321do {322  try {323    'try';324    break;325  } finally {326    'finally';327    continue;328  }329} while (false);330`);331// try: break332// finally: continue without value333expectFinallyValue(`334do {335  try {336    'try';337    break;338  } finally {339    continue;340  }341} while (false);342`, true);343// try: continue344// finally: continue345expectFinallyValue(`346do {347  try {348    'try';349    continue;350  } finally {351    'finally';352    continue;353  }354} while (false);355`);356// try: continue357// finally: continue without value358expectFinallyValue(`359do {360  try {361    'try';362    continue;363  } finally {364    continue;365  }366} while (false);367`, true);368// ==== without finally ====369// try: throw370// catch: normal371expectCatchValue(`372try {373  'try';374  throw 'exception';375} catch (e) {376  'catch';377}378`);379// try: throw380// catch: normal without value381expectCatchValue(`382try {383  'try';384  throw 'exception';385} catch (e) {386}387`, true);388// try: throw389// catch: break390expectCatchValue(`391while (true) {392  try {393    'try';394    throw 'exception';395  } catch (e) {396    'catch';397    break;398  }399}400`);401// try: throw402// catch: break without value403expectCatchValue(`404while (true) {405  try {406    'try';407    throw 'exception';408  } catch (e) {409    break;410  }411}412`, true);413// try: throw414// catch: continue415expectCatchValue(`416do {417  try {418    'try';419    throw 'exception';420  } catch (e) {421    'catch';422    continue;423  }424} while (false);425`);426// try: throw427// catch: continue without value428expectCatchValue(`429do {430  try {431    'try';432    throw 'exception';433  } catch (e) {434    continue;435  }436} while (false);437`, true);438if (typeof reportCompare === "function")...Using AI Code Generation
1import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';2import { AppModule } from './app.module';3import { AppComponent } from './app.component';4describe('AppComponent', () => {5  beforeEach(() => MockBuilder(AppComponent, AppModule));6  it('renders the component', () => {7    const fixture = MockRender(AppComponent);8    ngMocks.finally(() => {9      expect(fixture.nativeElement.innerHTML).toContain('Welcome to app!');10    });11  });12});13import { BrowserModule } from '@angular/platform-browser';14import { NgModule } from '@angular/core';15import { AppComponent } from './app.component';16@NgModule({17  imports: [18})19export class AppModule { }20import { Component } from '@angular/core';21@Component({22})23export class AppComponent { }24h1 {25  color: red;26}27import { async, ComponentFixture, TestBed } from '@angular/core/testing';28import { AppComponent } from './app.component';29describe('AppComponent', () => {30  let component: AppComponent;31  let fixture: ComponentFixture<AppComponent>;32  beforeEach(async(() => {33    TestBed.configureTestingModule({34    })35    .compileComponents();36  }));37  beforeEach(() => {38    fixture = TestBed.createComponent(AppComponent);39    component = fixture.componentInstance;40    fixture.detectChanges();41  });42  it('should create', () => {43    expect(component).toBeTruthy();44  });45});46import { Component } from '@angular/core';47export declare class AppComponent {48}49import { __decorate } from "tslib";50import { Component } from '@angular/core';51let AppComponent = class AppComponent {52};53AppComponent = __decorate([54    Component({55    })56], AppComponent);57export { AppComponent };58import * as i0 from "@angular/core";Using AI Code Generation
1import { TestBed, async } from '@angular/core/testing';2import { AppComponent } from './app.component';3import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';4describe('AppComponent', () => {5  beforeEach(() => MockBuilder(AppComponent));6  it('should create the app', () => {7    const fixture = MockRender(AppComponent);8    const app = ngMocks.findInstance(AppComponent);9    expect(app).toBeTruthy();10  });11  it('should have as title "testing"', () => {12    const fixture = MockRender(AppComponent);13    const app = ngMocks.findInstance(AppComponent);14    expect(app.title).toEqual('testing');15  });16  it('should render title', () => {17    const fixture = MockRender(AppComponent);18    const compiled = fixture.nativeElement;19    expect(compiled.querySelector('.content span').textContent).toContain(20    );21  });22});23import { Component } from '@angular/core';24@Component({25})26export class AppComponent {27  title = 'testing';28}29<h1>Welcome to {{ title }}!</h1>30.content {31  span {32    text-align: center;33    font-size: 24px;34  }35  ul {36    text-align: center;37    list-style: none;38    padding: 0;39    li {40      display: inline-block;Using AI Code Generation
1import { MockBuilder, MockRender } from 'ng-mocks';2import { AppModule } from './app.module';3describe('AppComponent', () => {4  beforeEach(() => MockBuilder(AppComponent, AppModule));5  it('should create the app', () => {6    const fixture = MockRender(AppComponent);7    const app = fixture.point.componentInstance;8    expect(app).toBeTruthy();9  });10});11import { Component } from '@angular/core';12@Component({13})14export class AppComponent {15  title = 'ng-mocks';16}17  {{ title }}18h1 {19  color: blue;20}21import { MockBuilder, MockRender } from 'ng-mocks';22import { AppModule } from './app.module';23import { AppComponent } from './app.component';24describe('AppComponent', () => {25  beforeEach(() => MockBuilder(AppComponent, AppModule));26  it('should create the app', () => {27    const fixture = MockRender(AppComponent);28    const app = fixture.point.componentInstance;29    expect(app).toBeTruthy();30  });31});32import { NgModule } from '@angular/core';33import { BrowserModule } from '@angular/platform-browser';34import { AppComponent } from './app.component';35@NgModule({36  imports: [37})38export class AppModule { }39import { MockBuilder, MockRender } from 'ng-mocks';40import { AppModule } from './app.module';41import { AppComponent } from './app.component';42describe('AppComponent', () => {43  beforeEach(() => MockBuilder(AppComponent, AppModule));44  it('should create the app', () => {45    const fixture = MockRender(AppComponent);46    const app = fixture.point.componentInstance;47    expect(app).toBeTruthy();48  });49});Using AI Code Generation
1import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';2describe('test', () => {3  beforeEach(() => MockBuilder().keep(MyComponent));4  it('should work', () => {5    const fixture = MockRender(MyComponent);6    ngMocks.finally(fixture);7  });8});9@josephsundstrom I think this is because you are using ngMocks.finally() in the test, but you are not using ngMocks.findInstance() to get the instance of the component. You need to get the instance of the component in order to call the ngOnDestroy() method. I think the following will work:10import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';11describe('test', () => {12  beforeEach(() => MockBuilder().keep(MyComponent));13  it('should work', () => {14    const fixture = MockRender(MyComponent);15    const component = ngMocks.findInstance(MyComponent);16    ngMocks.finally(component);17  });18});19@josephsundstrom I'm not sure what's going on. I just tried it on my end and it worked. I'm using Angular 8.2.14 and ng-mocks 9.0.0 as well. I have a component with a ngOnDestroy() method that just logs to the console. The test is as follows:20describe('test', () => {21  beforeEach(() => MockBuilder().keep(MyComponent));22  it('should work', () => {23    const fixture = MockRender(MyComponent);24    const component = ngMocks.findInstance(MyComponent);25    ngMocks.finally(component);26  });27});Using AI Code Generation
1describe('test', () => {2    beforeEach(() => {3        TestBed.configureTestingModule({4            imports: [HttpClientTestingModule],5        });6        httpMock = TestBed.get(HttpTestingController);7    });8    afterEach(() => {9        httpMock.verify();10    });11    it('should return an Observable', () => {12        const dummyResponse = {data: 'test'};13        service.getTest().subscribe((response) => {14            expect(response.data).toEqual('test');15        });16        expect(req.request.method).toBe('GET');17        req.flush(dummyResponse);18    });19});20@Injectable()21export class TestService {22    constructor(private http: HttpClient) {}23    getTest() {24    }25}26@Component({Using AI Code Generation
1const mock = ngMocks.finally();2const mock = ngMocks.finally();3const mock = ngMocks.find();4const mock = ngMocks.find();5const mock = ngMocks.findInstance();6const mock = ngMocks.findInstance();7const mock = ngMocks.findInstances();8const mock = ngMocks.findInstances();9const mock = ngMocks.findReadonly();10const mock = ngMocks.findReadonly();11const mock = ngMocks.findRendered();12const mock = ngMocks.findRendered();13const mock = ngMocks.findRenderedComponent();14const mock = ngMocks.findRenderedComponent();15const mock = ngMocks.findRenderedComponentInstance();16const mock = ngMocks.findRenderedComponentInstance();17const mock = ngMocks.findRenderedComponentInstances();18const mock = ngMocks.findRenderedComponentInstances();19const mock = ngMocks.findRenderedDirective();20const mock = ngMocks.findRenderedDirective();Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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