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inverse-test.js
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inverse-test.js
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import setupStore from 'dummy/tests/helpers/store';
import Ember from 'ember';
import testInDebug from 'dummy/tests/helpers/test-in-debug';
import {module, test} from 'qunit';
import DS from 'ember-data';
var env, store, User, Job, ReflexiveModel;
var attr = DS.attr;
var belongsTo = DS.belongsTo;
var run = Ember.run;
function stringify(string) {
return function() { return string; };
}
module('integration/inverse_test - inverseFor', {
beforeEach() {
User = DS.Model.extend({
name: attr('string'),
bestFriend: belongsTo('user', { async: true, inverse: null }),
job: belongsTo('job', { async: false })
});
User.toString = stringify('user');
Job = DS.Model.extend({
isGood: attr(),
user: belongsTo('user', { async: false })
});
Job.toString = stringify('job');
ReflexiveModel = DS.Model.extend({
reflexiveProp: belongsTo('reflexive-model', { async: false })
});
ReflexiveModel.toString = stringify('reflexiveModel');
env = setupStore({
user: User,
job: Job,
reflexiveModel: ReflexiveModel
});
store = env.store;
Job = store.modelFor('job');
User = store.modelFor('user');
ReflexiveModel = store.modelFor('reflexive-model');
},
afterEach() {
run(env.container, 'destroy');
}
});
test("Finds the inverse when there is only one possible available", function(assert) {
assert.deepEqual(Job.inverseFor('user', store), {
type: User,
name: 'job',
kind: 'belongsTo'
}, 'Gets correct type, name and kind');
});
test("Finds the inverse when only one side has defined it manually", function(assert) {
Job.reopen({
owner: belongsTo('user', { inverse: 'previousJob', async: false })
});
User.reopen({
previousJob: belongsTo('job', { async: false })
});
assert.deepEqual(Job.inverseFor('owner', store), {
type: User, //the model's type
name: 'previousJob', //the models relationship key
kind: 'belongsTo'
}, 'Gets correct type, name and kind');
assert.deepEqual(User.inverseFor('previousJob', store), {
type: Job, //the model's type
name: 'owner', //the models relationship key
kind: 'belongsTo'
}, 'Gets correct type, name and kind');
});
test("Returns null if inverse relationship it is manually set with a different relationship key", function(assert) {
Job.reopen({
user: belongsTo('user', { inverse: 'previousJob', async: false })
});
User.reopen({
job: belongsTo('job', { async: false })
});
assert.equal(User.inverseFor('job', store), null, 'There is no inverse');
});
testInDebug("Errors out if you define 2 inverses to the same model", function(assert) {
Job.reopen({
user: belongsTo('user', { inverse: 'job', async: false }),
owner: belongsTo('user', { inverse: 'job', async: false })
});
User.reopen({
job: belongsTo('job', { async: false })
});
assert.expectAssertion(function() {
User.inverseFor('job', store);
}, "You defined the 'job' relationship on user, but you defined the inverse relationships of type job multiple times. Look at http://emberjs.com/guides/models/defining-models/#toc_explicit-inverses for how to explicitly specify inverses");
});
test("Caches findInverseFor return value", function(assert) {
assert.expect(1);
var inverseForUser = Job.inverseFor('user', store);
Job.findInverseFor = function() {
assert.ok(false, 'Find is not called anymore');
};
assert.equal(inverseForUser, Job.inverseFor('user', store), 'Inverse cached succesfully');
});
testInDebug("Errors out if you do not define an inverse for a reflexive relationship", function(assert) {
//Maybe store is evaluated lazily, so we need this :(
assert.expectWarning(function() {
var reflexiveModel;
run(function() {
store.push({
data: {
type: 'reflexive-model',
id: '1'
}
});
reflexiveModel = store.peekRecord('reflexive-model', 1);
reflexiveModel.get('reflexiveProp');
});
}, /Detected a reflexive relationship by the name of 'reflexiveProp'/);
});