diff --git a/test/formats/json/parser_test.js b/test/formats/json/parser_test.js
new file mode 100644
index 0000000..8619988
--- /dev/null
+++ b/test/formats/json/parser_test.js
@@ -0,0 +1,109 @@
+var expect = require("chai").expect;
+var Parser = require("../../../lib/formats/json/parser.js");
+var Cloudevent = require("../../../index.js");
+
+const type        = "com.github.pull.create";
+const source      = "urn:event:from:myapi/resourse/123";
+const webhook     = "https://cloudevents.io/webhook";
+const contentType = "application/cloudevents+json; charset=utf-8";
+const now         = new Date();
+const schemaurl   = "http://cloudevents.io/schema.json";
+
+const ceContentType = "application/json";
+
+const data = {
+  foo: "bar"
+};
+
+describe("JSON Event Format Parser", () => {
+
+  it("Throw error when payload is an integer", () => {
+    // setup
+    var payload = 83;
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser, payload))
+        .to.throw("invalid payload type, allowed are: string or object");
+  });
+
+  it("Throw error when payload is null", () => {
+    // setup
+    var payload = null;
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser, payload))
+        .to.throw("null or undefined payload");
+  });
+
+  it("Throw error when payload is undefined", () => {
+    // setup
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser))
+        .to.throw("null or undefined payload");
+  });
+
+  it("Throw error when payload is a float", () => {
+    // setup
+    var payload = 8.3;
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser, payload))
+        .to.throw("invalid payload type, allowed are: string or object");
+  });
+
+  it("Throw error when payload is an invalid JSON", () => {
+    // setup
+    var payload = "gg";
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser, payload))
+        .to.throw("invalid json payload");
+  });
+
+  it("Throw error when payload is an invalid CloudEvent spec 0.2", () => {
+    // setup
+    var payload =
+      new Cloudevent()
+        .type(type)
+        .source(source)
+        .contenttype(ceContentType)
+        .time(now)
+        .schemaurl(schemaurl)
+        .data(data)
+        .toString();
+
+    var parser = new Parser();
+
+    // act and assert
+    expect(parser.parse.bind(parser, payload))
+        .to.throw("invalid payload");
+  });
+
+  it("Must accept the CloudEvent spec 0.2 as JSON", () => {
+    // setup
+    var payload =
+      new Cloudevent(Cloudevent.specs["0.2"])
+        .type(type)
+        .source(source)
+        .contenttype(ceContentType)
+        .time(now)
+        .schemaurl(schemaurl)
+        .data(data)
+        .toString();
+
+    var parser = new Parser();
+
+    // act
+    var actual = parser.parse(payload);
+
+    // assert
+    expect(actual)
+        .to.be.an("object");
+  });
+});