Created
November 30, 2017 19:15
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How to use createSpyObj properly
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var RequestHandler = function () { | |
this.checkConnection = function () {}; | |
this.getQueryResult = function (sQuery) { | |
this.checkConnection(); | |
try { | |
return this.conn.executeQuery.apply(this.conn, arguments); | |
} catch (err) { | |
this.conn.close(); | |
this.conn = null; | |
throw "unexpected error, please check application trace files for more information"; | |
} | |
}; | |
this.getDatabaseVersion = function() { | |
var query = "select top 1 VERSION from M_DATABASE"; | |
return this.getQueryResult(query)[0].VERSION; | |
}; | |
} | |
describe('RequestHandler', () => { | |
let rHandler = null; | |
let connection = null | |
beforeEach(() => { | |
connection = jasmine.createSpyObj('conn', ['executeQuery', 'close']) | |
rHandler = new RequestHandler(); | |
rHandler.conn = connection; | |
}); | |
describe('getQueryResult', () => { | |
beforeEach(() => { | |
spyOn(rHandler, 'checkConnection'); | |
}); | |
it('should check connection', () => { | |
rHandler.getQueryResult(); | |
expect(rHandler.checkConnection).toHaveBeenCalled(); | |
}); | |
it('should execute query', () => { | |
connection.executeQuery.and.returnValue('foo'); | |
const actual = rHandler.getQueryResult('bar', 'baz'); | |
// toHaveBeenCalledWithContext | |
// https://www.npmjs.com/package/jasmine-spy-matchers | |
//expect(connection.executeQuery).toHaveBeenCalledWithContext(connection, 'bar', 'baz'); | |
// or default toHaveBeenCalledWith | |
expect(connection.executeQuery).toHaveBeenCalledWith('bar', 'baz'); | |
console.log(connection.executeQuery.calls.allArgs()) | |
expect(actual).toBe('foo'); | |
}); | |
it('should throw error', () => { | |
connection.executeQuery.and.throwError(new Error('some error message')); | |
expect(() => { | |
rHandler.getQueryResult('bar', 'baz'); | |
}).toThrow('unexpected error, please check application trace files for more information'); | |
expect(rHandler.conn).toBe(null); | |
}); | |
}); | |
describe('getDatabaseVersion', () => { | |
it('should return version', () => { | |
spyOn(rHandler, 'getQueryResult').and.returnValue([{VERSION: '2.00.030.00.1502184660'}]) | |
const actual = rHandler.getDatabaseVersion(); | |
expect(rHandler.getQueryResult).toHaveBeenCalledWith('select top 1 VERSION from M_DATABASE') | |
expect(actual).toBe('2.00.030.00.1502184660'); | |
}); | |
}); | |
}); |
Author
killmenot
commented
Nov 30, 2017
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