122 lines
3.6 KiB
JavaScript
122 lines
3.6 KiB
JavaScript
goog.provide('ol.test.expression');
|
|
|
|
|
|
describe('ol.expression.parse', function() {
|
|
|
|
it('parses a string and returns an expression', function() {
|
|
var expr = ol.expression.parse('foo');
|
|
expect(expr).to.be.a(ol.expression.Expression);
|
|
});
|
|
|
|
describe('primary expressions', function() {
|
|
// http://www.ecma-international.org/ecma-262/5.1/#sec-11.1
|
|
|
|
it('parses identifier expressions', function() {
|
|
var expr = ol.expression.parse('foo');
|
|
expect(expr).to.be.a(ol.expression.Identifier);
|
|
expect(expr.evaluate({foo: 'bar'})).to.be('bar');
|
|
});
|
|
|
|
it('consumes whitespace as expected', function() {
|
|
var expr = ol.expression.parse(' foo ');
|
|
expect(expr).to.be.a(ol.expression.Identifier);
|
|
expect(expr.evaluate({foo: 'bar'})).to.be('bar');
|
|
});
|
|
|
|
it('throws on invalid identifier expressions', function() {
|
|
expect(function() {
|
|
ol.expression.parse('3foo');
|
|
}).throwException();
|
|
});
|
|
|
|
it('parses string literal expressions', function() {
|
|
var expr = ol.expression.parse('"foo"');
|
|
expect(expr).to.be.a(ol.expression.Literal);
|
|
expect(expr.evaluate()).to.be('foo');
|
|
});
|
|
|
|
it('throws on unterminated string', function() {
|
|
expect(function() {
|
|
ol.expression.parse('"foo');
|
|
}).throwException();
|
|
});
|
|
|
|
it('parses numeric literal expressions', function() {
|
|
var expr = ol.expression.parse('.42e+2');
|
|
expect(expr).to.be.a(ol.expression.Literal);
|
|
expect(expr.evaluate()).to.be(42);
|
|
});
|
|
|
|
it('throws on invalid number', function() {
|
|
expect(function() {
|
|
ol.expression.parse('.42eX');
|
|
}).throwException();
|
|
});
|
|
|
|
it('parses boolean literal expressions', function() {
|
|
var expr = ol.expression.parse('false');
|
|
expect(expr).to.be.a(ol.expression.Literal);
|
|
expect(expr.evaluate()).to.be(false);
|
|
});
|
|
|
|
it('parses null literal expressions', function() {
|
|
var expr = ol.expression.parse('null');
|
|
expect(expr).to.be.a(ol.expression.Literal);
|
|
expect(expr.evaluate()).to.be(null);
|
|
});
|
|
|
|
});
|
|
|
|
describe('left-hand-side expressions', function() {
|
|
// http://www.ecma-international.org/ecma-262/5.1/#sec-11.2
|
|
|
|
it('parses member expressions with dot notation', function() {
|
|
var expr = ol.expression.parse('foo.bar.baz');
|
|
expect(expr).to.be.a(ol.expression.Member);
|
|
var scope = {foo: {bar: {baz: 42}}};
|
|
expect(expr.evaluate(scope)).to.be(42);
|
|
});
|
|
|
|
it('consumes whitespace as expected', function() {
|
|
var expr = ol.expression.parse(' foo . bar . baz ');
|
|
expect(expr).to.be.a(ol.expression.Member);
|
|
var scope = {foo: {bar: {baz: 42}}};
|
|
expect(expr.evaluate(scope)).to.be(42);
|
|
});
|
|
|
|
it('throws on invalid member expression', function() {
|
|
expect(function() {
|
|
ol.expression.parse('foo.4bar');
|
|
}).throwException();
|
|
});
|
|
|
|
it('parses call expressions with literal arguments', function() {
|
|
var expr = ol.expression.parse('foo(42, "bar")');
|
|
expect(expr).to.be.a(ol.expression.Call);
|
|
var scope = {
|
|
foo: function(num, str) {
|
|
expect(num).to.be(42);
|
|
expect(str).to.be('bar');
|
|
return str + num;
|
|
}
|
|
};
|
|
expect(expr.evaluate(scope)).to.be('bar42');
|
|
});
|
|
|
|
it('throws on calls with unterminated arguments', function() {
|
|
expect(function() {
|
|
ol.expression.parse('foo(42,)');
|
|
}).throwException();
|
|
});
|
|
|
|
});
|
|
|
|
|
|
});
|
|
|
|
|
|
goog.require('ol.expression');
|
|
goog.require('ol.expression.Expression');
|
|
goog.require('ol.expression.Identifier');
|
|
goog.require('ol.expression.Literal');
|