Unit testing Angular Jasmine Karma
I'm learning Unit testing and I've
@Input() showSearchTab: Boolean = false;
@Input() currentTab: string = null;
ngOnInit(): void {
if (this.showSearchTab) {
this.currentTab = 'search';
}
}
This is the unit test:
describe('ngOnInit()', () => {
it('should set all the defaults', () => {
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBe('search');
});
});
I get an error expected null to be 'search'
angular jasmine karma-runner
add a comment |
I'm learning Unit testing and I've
@Input() showSearchTab: Boolean = false;
@Input() currentTab: string = null;
ngOnInit(): void {
if (this.showSearchTab) {
this.currentTab = 'search';
}
}
This is the unit test:
describe('ngOnInit()', () => {
it('should set all the defaults', () => {
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBe('search');
});
});
I get an error expected null to be 'search'
angular jasmine karma-runner
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41
add a comment |
I'm learning Unit testing and I've
@Input() showSearchTab: Boolean = false;
@Input() currentTab: string = null;
ngOnInit(): void {
if (this.showSearchTab) {
this.currentTab = 'search';
}
}
This is the unit test:
describe('ngOnInit()', () => {
it('should set all the defaults', () => {
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBe('search');
});
});
I get an error expected null to be 'search'
angular jasmine karma-runner
I'm learning Unit testing and I've
@Input() showSearchTab: Boolean = false;
@Input() currentTab: string = null;
ngOnInit(): void {
if (this.showSearchTab) {
this.currentTab = 'search';
}
}
This is the unit test:
describe('ngOnInit()', () => {
it('should set all the defaults', () => {
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBe('search');
});
});
I get an error expected null to be 'search'
angular jasmine karma-runner
angular jasmine karma-runner
asked Nov 15 '18 at 14:37
K SK S
83
83
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41
add a comment |
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41
add a comment |
2 Answers
2
active
oldest
votes
Following your component test, at the moment the test hits the expectation, showSearchTab is set to false, so it doesn't pass the if condition. To have a fully tested scenario, you should do:
describe('ngOnInit()', () => {
describe('and showSearchTab is set to false', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = false;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBeNull();
});
});
describe('and showSearchTab is set to true', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = true;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toEqual('search');
});
});
});
add a comment |
As per your logic in ngOnInit
function currentTab
will have value search
if showSearchTab
is true
.
Thus, before invoking specManager.component.ngOnInit()
in your test case, set specManager.component.currentTab = true;
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53321810%2funit-testing-angular-jasmine-karma%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Following your component test, at the moment the test hits the expectation, showSearchTab is set to false, so it doesn't pass the if condition. To have a fully tested scenario, you should do:
describe('ngOnInit()', () => {
describe('and showSearchTab is set to false', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = false;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBeNull();
});
});
describe('and showSearchTab is set to true', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = true;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toEqual('search');
});
});
});
add a comment |
Following your component test, at the moment the test hits the expectation, showSearchTab is set to false, so it doesn't pass the if condition. To have a fully tested scenario, you should do:
describe('ngOnInit()', () => {
describe('and showSearchTab is set to false', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = false;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBeNull();
});
});
describe('and showSearchTab is set to true', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = true;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toEqual('search');
});
});
});
add a comment |
Following your component test, at the moment the test hits the expectation, showSearchTab is set to false, so it doesn't pass the if condition. To have a fully tested scenario, you should do:
describe('ngOnInit()', () => {
describe('and showSearchTab is set to false', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = false;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBeNull();
});
});
describe('and showSearchTab is set to true', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = true;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toEqual('search');
});
});
});
Following your component test, at the moment the test hits the expectation, showSearchTab is set to false, so it doesn't pass the if condition. To have a fully tested scenario, you should do:
describe('ngOnInit()', () => {
describe('and showSearchTab is set to false', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = false;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toBeNull();
});
});
describe('and showSearchTab is set to true', () => {
it('should set all the defaults', () => {
specManager.component.showSearchTab = true;
specManager.component.ngOnInit();
expect(specManager.component.currentTab).toEqual('search');
});
});
});
answered Nov 15 '18 at 14:47
Miguel LeiteMiguel Leite
10918
10918
add a comment |
add a comment |
As per your logic in ngOnInit
function currentTab
will have value search
if showSearchTab
is true
.
Thus, before invoking specManager.component.ngOnInit()
in your test case, set specManager.component.currentTab = true;
add a comment |
As per your logic in ngOnInit
function currentTab
will have value search
if showSearchTab
is true
.
Thus, before invoking specManager.component.ngOnInit()
in your test case, set specManager.component.currentTab = true;
add a comment |
As per your logic in ngOnInit
function currentTab
will have value search
if showSearchTab
is true
.
Thus, before invoking specManager.component.ngOnInit()
in your test case, set specManager.component.currentTab = true;
As per your logic in ngOnInit
function currentTab
will have value search
if showSearchTab
is true
.
Thus, before invoking specManager.component.ngOnInit()
in your test case, set specManager.component.currentTab = true;
answered Nov 15 '18 at 14:42
codeLovercodeLover
2,2551620
2,2551620
add a comment |
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53321810%2funit-testing-angular-jasmine-karma%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Can you share the complete code?
– codeLover
Nov 15 '18 at 14:39
you may need to initialize the value of this.showSearchTab in the test method
– Shiju
Nov 15 '18 at 14:41