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<!doctype html>
<title></title>
<script src="https://cdn.rawgit.com/google/closure-library/master/closure/goog/base.js"></script>
<script src="../../../../../ui/webui/resources/js/cr.js"></script>
<script src="screen_context.js"></script>
<script>
goog.require('goog.testing.jsunit');
</script>
<body>
<script>
function callSuccessful(f) {
try {
f();
} catch (e) {
return false;
}
return true;
}
function checkThrows(f) {
assertFalse(callSuccessful(f));
}
function checkNotThrows(f) {
assertTrue(callSuccessful(f));
}
function testSimple() {
var context = new login.ScreenContext;
assertFalse(context.hasChanges());
assertFalse(context.hasKey('key0'));
var rv = context.set('key0', true);
assertTrue(rv);
assertTrue(context.hasKey('key0'));
assertTrue(context.get('key0'));
assertTrue(context.get('key0', false));
assertTrue(context.hasChanges());
rv = context.set('key0', true);
assertFalse(rv);
rv = context.set('key0', false);
assertTrue(rv);
assertTrue(context.hasKey('key0'));
assertFalse(context.get('key0'));
assertFalse(context.get('key0', true));
assertTrue(context.hasChanges());
assertFalse(context.hasKey('key1'));
assertEquals(1, context.get('key1', 1));
rv = context.set('key1', 2);
assertTrue(rv);
assertTrue(context.hasKey('key1'));
assertEquals(2, context.get('key1'));
assertEquals(2, context.get('key1', 1));
}
function testChanges() {
var context = new login.ScreenContext;
assertFalse(context.hasChanges());
var rv = context.set('key0', 2);
assertTrue(rv);
assertEquals(2, context.get('key0'));
assertTrue(context.hasChanges());
var changes = context.getChangesAndReset();
assertFalse(context.hasChanges());
assertEquals(1, Object.keys(changes).length);
assertEquals(2, changes['key0']);
rv = context.set('key0', 3);
assertTrue(rv);
assertEquals(3, context.get('key0', 3));
assertTrue(context.hasChanges());
rv = context.set('key0', 2);
assertTrue(rv);
assertTrue(context.hasChanges());
}
function testComplexChanges() {
var context = new login.ScreenContext;
assertFalse(context.hasChanges());
context.set('key0', 'value0');
context.set('key1', true);
context.set('key2', 3.14159);
assertTrue(context.hasChanges());
// Get all changes and verify them.
var changes = context.getChangesAndReset();
assertFalse(context.hasChanges());
assertEquals(3, Object.keys(changes).length);
assertEquals('value0', changes['key0']);
assertEquals(true, changes['key1']);
assertEquals(3.14159, changes['key2']);
context.set('key0', 'value1');
assertTrue(context.hasChanges());
context.set('key0', 'value0');
assertTrue(context.hasChanges());
changes = context.getChangesAndReset();
assertFalse(context.hasChanges());
assertEquals(1, Object.keys(changes).length);
assertEquals('value0', changes['key0']);
}
function testApplyChanges() {
var context = new login.ScreenContext;
assertFalse(context.hasChanges());
var changes = {
key0: 'value0',
key1: 1,
key2: true
};
var keys = context.applyChanges(changes);
assertEquals(3, keys.length);
keys.sort();
assertEquals('key0', keys[0]);
assertEquals('key1', keys[1]);
assertEquals('key2', keys[2]);
assertFalse(context.hasChanges());
assertEquals('value0', context.get('key0'));
assertEquals(1, context.get('key1'));
assertTrue(context.get('key2'));
}
function testErrorHandling() {
function createContext() {
return new login.ScreenContext;
}
/* Invalid keys. */
checkThrows(function() {
createContext().set(true, 10);
});
checkThrows(function() {
createContext().set(new Object, 10);
});
checkThrows(function() {
createContext().set(10, 10);
});
checkNotThrows(function() {
createContext().set('key0', 10);
});
checkThrows(function() {
var c = createContext();
c.set('10', 10);
c.get(10);
});
checkNotThrows(function() {
var c = createContext();
c.set('10', 10);
c.get('10');
});
checkThrows(function() {
createContext().hasKey(20);
});
/* Missing key. */
checkThrows(function() {
createContext().get('key');
});
checkNotThrows(function() {
createContext().get('key', 10);
});
/* Invalid values. */
checkThrows(function() {
createContext().set('key0', new Object());
});
checkThrows(function() {
createContext().set('key0', new Boolean(true));
});
/* Applying diff to context with changes. */
checkThrows(function() {
var c = createContext();
c.set('key', 'value');
c.applyChanges({'key1': 'value1'});
});
checkNotThrows(function() {
var c = createContext();
c.set('key', 'value');
c.getChangesAndReset();
c.applyChanges({'key1': 'value1'});
});
}
</script>
</body>
|
