Begin generating actual test objects

Author: danascheider

.rspec

@@ -1,2 +1,3 @@
 --color
+--format documentation
 --require spec_helper

features/generate_data.feature

@@ -1,5 +1,5 @@
 Feature: Generate test data
-  Scenario: Simple object
+  Scenario: Empty object
     Given the following JSON schema:
       """json
       {
@@ -14,7 +14,7 @@ Feature: Generate test data
       {}
       """
 
-  Scenario: Simple array
+  Scenario: Empty array
     Given the following JSON schema:
       """json
       {
@@ -28,3 +28,20 @@ Feature: Generate test data
       """json
       []
       """
+
+  Scenario: Simple object
+    Given the following JSON schema:
+      """json
+      {
+        "$schema": "http://json-schema.org/draft-04/schema#",
+        "type": "object",
+        "properties": {
+          "name": "string"
+        }
+      }
+      """
+    When I run the JSON data generator
+    Then the JSON output should be:
+      """json
+      { "name": "string" }
+      """

lib/json_test_data/json_schema.rb

@@ -7,7 +7,21 @@ def initialize(schema)
     end
 
     def generate_example
-      @schema.fetch(:type) == "object" ? {}.to_json : [].to_json
+      @schema.fetch(:type) == "object" ? generate_object : generate_array
     end
+
+    private
+
+      def generate_object
+        obj = {}
+
+        schema.fetch(:properties).each  {|key, value| obj[key] = value.fetch(:type) }
+
+        obj.to_json
+      end
+
+      def generate_array
+        [].to_json
+      end
   end
 end

spec/json_test_data/json_schema_spec.rb

@@ -15,43 +15,70 @@
   end
 
   describe "#generate_example" do
-    context "when schema describes an object" do
-      let(:schema) do
-        JsonTestData::JsonSchema.new(
-          {
-            "$schema"    => "http://json-schema.org/draft-04/schema#",
-            "type"       => "object",
-            "properties" => {}
-          }.to_json
-        )
-      end
+    describe "trivial examples" do
+      context "when schema describes an object" do
+        let(:schema) do
+          JsonTestData::JsonSchema.new(
+            {
+              "$schema"    => "http://json-schema.org/draft-04/schema#",
+              "type"       => "object",
+              "properties" => {}
+            }.to_json
+          )
+        end
 
-      let(:output) do
-        {}.to_json
+        let(:output) do
+          {}.to_json
+        end
+
+        it "generates an object" do
+          expect(schema.generate_example).to eql output
+        end
       end
 
-      it "generates an object" do
-        expect(schema.generate_example).to eql output
+      context "when schema describes an array" do
+        let(:schema) do
+          JsonTestData::JsonSchema.new(
+            {
+              "$schema" => "http://json-schema.org/draft-04/schema#",
+              "type"    => "array",
+              "items"   => []
+            }.to_json
+          )
+        end
+
+        let(:output) do
+          [].to_json
+        end
+
+        it "generates an object" do
+          expect(schema.generate_example).to eql output
+        end
       end
     end
 
-    context "when schema describes an array" do
+    describe "bigger examples" do
       let(:schema) do
-        JsonTestData::JsonSchema.new(
-          {
-            "$schema" => "http://json-schema.org/draft-04/schema#",
-            "type"    => "array",
-            "items"   => []
-          }.to_json
-        )
+        {
+          :"$schema"  => "http://json-schema.org/draft-04/schema#",
+          :type       => "object",
+          :properties => {
+            :name => {
+              :type => "string"
+            }
+          }
+        }.to_json
       end
 
       let(:output) do
-        [].to_json
+        { "name" => "string" }.to_json
       end
 
-      it "generates an object" do
-        expect(schema.generate_example).to eql output
+      context "when schema describes an object" do
+        it "generates the right object" do
+          json_schema = JsonTestData::JsonSchema.new(schema)
+          expect(json_schema.generate_example).to eql output
+        end
       end
     end
   end