render, filter, tag

test/render.js

@@ -0,0 +1,79 @@
+const chai = require("chai");
+const sinonChai = require("sinon-chai");
+const sinon = require("sinon");
+const expect = chai.expect;
+
+chai.use(sinonChai);
+
+var tag = require('../tag.js');
+var context = require('../context.js');
+var filter = require('../filter');
+var render = require('../render.js');
+
+describe('render', function() {
+    var ctx, htmlToken, tagToken, filterToken;
+
+    before(function() {
+        ctx = context.factory({
+            x: 'XXX',
+            foo: {
+                bar: ['a', 2]
+            }
+        });
+        tagToken = {
+            type: 'tag',
+            value: 'foo bar:x foo:"FOO" num:2.3'
+        };
+        htmlToken = {
+            type: 'html',
+            value: '<p>'
+        };
+        filterToken = {
+            type: 'output',
+            value: 'foo.bar[0] | date: "b" | time:2'
+        };
+    });
+
+    beforeEach(function(){
+        filter.clear();
+        tag.clear();
+    });
+
+    it('should render html', function() {
+        expect(render([htmlToken], ctx)).to.equal('<p>');
+    });
+
+    it('should render with tag function', function() {
+        tag.register('foo', {
+            render: x => 'X'
+        });
+        expect(render([tagToken], ctx)).to.equal('X');
+    });
+
+    it('should call tag with correct arguments', function() {
+        var spy = sinon.spy();
+        tag.register('foo', { render: spy });
+        render([tagToken], ctx);
+        expect(spy).to.have.been.calledWithMatch([], ctx, tagToken.value, {
+            bar: 'XXX',
+            foo: 'FOO',
+            num: 2.3
+        });
+    });
+
+    it('should render with filter function', function() {
+        filter.register('date', (l, r) => l + r);
+        filter.register('time', (l, r) => l + 3*r);
+        expect(render([filterToken], ctx)).to.equal('ab6');
+    });
+
+    it('should call filter with correct arguments', function() {
+        var date = sinon.stub().returns('y');
+        var time = sinon.spy();
+        filter.register('date', date);
+        filter.register('time', time);
+        render([filterToken], ctx);
+        expect(date).to.have.been.calledWith('a', 'b');
+        expect(time).to.have.been.calledWith('y', 2);
+    });
+});