// ========================================================================== // Project: SproutCore - JavaScript Application Framework // Copyright: ©2006-2011 Apple Inc. and contributors. // License: Licensed under MIT license (see license.js) // ========================================================================== /*globals module ok equals same test MyApp */

// NOTE: The test below are based on the Data Hashes state chart. This models // the “read” event in the Store portion of the diagram.

var store, storeKey, json; module(“SC.Store#readDataHash”, {

setup: function() {
  store = SC.Store.create();

  json = {
    string: "string",
    number: 23,
    bool:   YES
  };

  storeKey = SC.Store.generateStoreKey();

  store.writeDataHash(storeKey, json, SC.Record.READY_CLEAN);
  store.editables = null; // manually patch to setup test state
}

});

test(“data state=LOCKED”, function() {

// preconditions
equals(store.storeKeyEditState(storeKey), SC.Store.LOCKED, 'precond - data state should be LOCKED');
var oldrev = store.revisions[storeKey];

// perform read
var ret = store.readDataHash(storeKey);

// verify
equals(ret, json, 'should read same data hash once locked');
equals(store.storeKeyEditState(storeKey), SC.Store.LOCKED, 'should remain in locked state');

// test revisions
equals(store.revisions[storeKey], oldrev, 'should not change revision');
if (!SC.none(oldrev)) {
  ok(store.revisions.hasOwnProperty(storeKey), 'should copy reference to revision');
}

});

test(“data state=EDITABLE”, function() {

// preconditions
var ret1 = store.readEditableDataHash(storeKey);
equals(store.storeKeyEditState(storeKey), SC.Store.EDITABLE, 'precond - data state should be EDITABLE');
var oldrev = store.revisions[storeKey];

// perform read
var ret2 = store.readDataHash(storeKey);

// verify
equals(ret1, ret2, 'should read same data hash once editable');
equals(store.storeKeyEditState(storeKey), SC.Store.EDITABLE, 'should remain in editable state');

// test revisions
equals(store.revisions[storeKey], oldrev, 'should not change revision');
if (!SC.none(oldrev)) {
  ok(store.revisions.hasOwnProperty(storeKey), 'should copy reference to revision');
}

});

test(“should return null when accessing an unknown storeKey”, function() {

equals(store.readDataHash(20000000), null, 'should return null for non-existent store key');
equals(store.storeKeyEditState(storeKey), SC.Store.LOCKED, 'should put into locked edit state');

});