Support for pattern subeeshcbabu-zz#3

lib/generators/index.js

@@ -158,6 +158,13 @@ function stringMock(schema) {
          * If `enum` is defined for the property
          */
         mockStr = enumMock(schema);
+    } else if (schema.pattern) {
+        /**
+         * If `pattern` is defined for the property
+         */
+        //Load only if pattern exist.
+        var randexp = require('randexp').randexp;
+        mockStr = randexp(schema.pattern);
     } else if(Format[schema.format]) {
         /**
          * If a `format` is defined for the property

package.json

@@ -28,6 +28,7 @@
   "dependencies": {
     "chance": "^1.0.3",
     "moment": "^2.13.0",
+    "randexp": "^0.4.2",
     "swagger-parser": "^3.4.1"
   },
   "devDependencies": {

tests/fixture/petstore.json

@@ -184,6 +184,14 @@
                     "required": true,
                     "type": "integer",
                     "format": "int64"
+                },
+                {
+                    "name": "petName",
+                    "in": "query",
+                    "description": "Name of pet to return",
+                    "required": true,
+                    "type": "string",
+                    "pattern": "awesome+ (pet|cat|bird)"
                 }],
                 "responses": {
                     "200": {

tests/param_mockgen.js

@@ -56,6 +56,10 @@ describe('Parameter Mock generator', function () {
             Assert.ok(params.path, 'Generated path parameter');
             Assert.ok(params.path[0].name === 'petId', 'generated mock parameter for petId');
             Assert.ok(Number.isInteger(params.path[0].value), 'OK value for petId');
+
+            Assert.ok(params.query, 'Generated query parameter');
+            Assert.ok(params.query[0].name === 'petName', 'generated mock parameter for petName');
+            Assert.ok(/awesome+ (pet|cat|bird)/.test(params.query[0].value), 'OK value for petName');
             done();
         });
     });