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Kube Service tests (#13183)

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This commit is contained in:
Arvind Ranasaria
2020-11-03 15:46:31 -08:00
committed by GitHub
parent 7bdb7c328a
commit 3ec1f7cc2b
4 changed files with 108 additions and 28 deletions
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76
extensions/resource-deployment/src/test/services/kubeService.test.ts Normal file
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Source EULA. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as fs from 'fs';
import 'mocha';
import * as path from 'path';
import * as sinon from 'sinon';
import * as yamljs from 'yamljs';
import { tryExecuteAction } from '../../common/utils';
import { getDefaultKubeConfigPath, getKubeConfigClusterContexts, KubeClusterContext, KubeService } from '../../services/kubeService';
const kubeConfig =
{
'contexts': [
{
'context': {
'cluster': 'docker-desktop',
'user': 'docker-desktop'
},
'name': 'docker-for-desktop'
},
{
'context': {
'cluster': 'kubernetes',
'user': 'kubernetes-admin'
},
'name': 'kubernetes-admin@kubernetes'
}
],
'current-context': 'docker-for-desktop'
};
describe('KubeService', function (): void {
const kubeService: KubeService = new KubeService();
const configFile = 'kubeConfig';
afterEach('NotebookService cleanup', () => {
sinon.restore();
});
it('getDefaultKubeConfigPath', async () => {
getDefaultKubeConfigPath().should.endWith(path.join('.kube', 'config'));
kubeService.getDefaultConfigPath().should.endWith(path.join('.kube', 'config'));
});
describe('get Kube Config Cluster Contexts', () => {
it('success', async () => {
sinon.stub(fs.promises, 'access').withArgs(configFile).resolves(); //resolving access to file, mocks its existence
sinon.stub(yamljs, 'load').returns(<any>kubeConfig);
const verifyContexts = (contexts: KubeClusterContext[], testName: string) => {
contexts.length.should.equal(2, `test: ${testName} failed`);
contexts[0].name.should.equal('docker-for-desktop', `test: ${testName} failed`);
contexts[0].isCurrentContext.should.be.true(`test: ${testName} failed`);
contexts[1].name.should.equal('kubernetes-admin@kubernetes', `test: ${testName} failed`);
contexts[1].isCurrentContext.should.be.false(`test: ${testName} failed`);
};
verifyContexts(await getKubeConfigClusterContexts(configFile), 'getKubeConfigClusterContexts');
verifyContexts(await kubeService.getClusterContexts(configFile), 'getClusterContexts');
});
it('errors with empty array on ENOENT error', async () => {
sinon.stub(fs.promises, 'access').withArgs(configFile).rejects(Object.assign(new Error(), { code: 'ENOENT' })); //rejecting access to file, fakes its non-existence with specific error
const verifyContexts = (contexts: KubeClusterContext[], testName: string) => {
contexts.length.should.equal(0, `test: ${testName} failed`);
};
verifyContexts(await getKubeConfigClusterContexts(configFile), 'getKubeConfigClusterContexts');
verifyContexts(await kubeService.getClusterContexts(configFile), 'getClusterContexts');
});
it('throws error when unable to access file with non ENOENT error', async () => {
const error = new Error('unknown error accessing file');
sinon.stub(fs.promises, 'access').withArgs(configFile).rejects(error); //rejecting access to file, fakes its non-existence
((await tryExecuteAction(() => getKubeConfigClusterContexts(configFile))).error).should.equal(error, `test: getKubeConfigClusterContexts failed`);
((await tryExecuteAction(() => kubeService.getClusterContexts(configFile))).error).should.equal(error, `test: getClusterContexts failed`);
});
});
});