<NME> test.js
<BEF> ADDFILE
<MSG> Added json to media query string conversion function and tests

<DFF> @@ -0,0 +1,35 @@
+var should = require('should');
+var json2mq = require('../');
+
+describe('json2mq', function () {
+  it('should return query string for media type', function () {
+    json2mq({type: 'screen'}).should.equal('screen');
+  });
+
+  it('should return query string for media features', function () {
+    json2mq({minWidth: 100, maxWidth: 200}).should.equal('(min-width: 100px) and (max-width: 200px)');
+  });
+
+  it('should return query string for media type and media features', function () {
+    json2mq({type: 'screen', minWidth: 100, maxWidth: 200}).should.equal('screen and (min-width: 100px) and (max-width: 200px)');
+  });
+
+  it('should add px unit to dimension features', function () {
+    json2mq({minWidth: 100, aspectRatio: "3/4"}).should.equal('(min-width: 100px) and (aspect-ratio: 3/4)');
+  });
+
+  it('should accept other units for dimension features if passed as string', function () {
+    json2mq({minWidth: '10em', aspectRatio: "3/4"}).should.equal('(min-width: 10em) and (aspect-ratio: 3/4)');
+  });
+
+  it('should return comma seperated query string for multiple media queries', function () {
+    json2mq([
+      {minWidth: 100},
+      {type: 'handheld', orientation: 'landscape'}
+    ]).should.equal('(min-width: 100px), handheld and (orientation: landscape)');
+  });
+
+  it('should only return feature if its value is true', function () {
+    json2mq({type: 'all', monochrome: true}).should.equal('all and (monochrome)');
+  });
+});
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Added json to media query string conversion function and tests