diff --git a/test/notebooks/groovy/KernelAPITest.ipynb b/test/notebooks/groovy/KernelAPITest.ipynb
new file mode 100644
index 0000000000..7c75325487
--- /dev/null
+++ b/test/notebooks/groovy/KernelAPITest.ipynb
@@ -0,0 +1,135 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Load Magic Command"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%classpath add jar ../../../doc/resources/jar/loadMagicJarDemo.jar"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%load_magic com.twosigma.beakerx.custom.magic.command.ShowEnvsCustomMagicCommand"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "%showEnvs"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Show Null Execution Result"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "com.twosigma.beakerx.kernel.Kernel.showNullExecutionResult"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "com.twosigma.beakerx.kernel.Kernel.showNullExecutionResult = true;\n",
+    "String seeNullString = null;\n",
+    "seeNullString"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "com.twosigma.beakerx.kernel.Kernel.showNullExecutionResult = false;\n",
+    "String noNullString = null;\n",
+    "noNullString"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# JVM Repr"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import jupyter.Displayer;\n",
+    "import jupyter.Displayers;\n",
+    "Displayers.register(Integer.class, new Displayer<Integer>() {\n",
+    "  @Override\n",
+    "  public Map<String, String> display(Integer value) {\n",
+    "    return new HashMap<String, String>() {{\n",
+    "      put(MIMEContainer.MIME.TEXT_HTML, \"<div><h1>\" + value + \"</h1></div>\");\n",
+    "\n",
+    "    }};\n",
+    "  }\n",
+    "});"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "1+1"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Groovy",
+   "language": "groovy",
+   "name": "groovy"
+  },
+  "language_info": {
+   "codemirror_mode": "groovy",
+   "file_extension": ".groovy",
+   "mimetype": "",
+   "name": "Groovy",
+   "nbconverter_exporter": "",
+   "version": "2.4.3"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/test/tests/groovy/kernelAPITest.js b/test/tests/groovy/kernelAPITest.js
new file mode 100644
index 0000000000..bb8876ac4c
--- /dev/null
+++ b/test/tests/groovy/kernelAPITest.js
@@ -0,0 +1,108 @@
+/*
+ *  Copyright 2017 TWO SIGMA OPEN SOURCE, LLC
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+var BeakerXPageObject = require('../beakerx.po.js');
+var beakerxPO;
+
+describe('(Groovy) Testing of Kernel API', function () {
+
+  beforeAll(function () {
+    beakerxPO = new BeakerXPageObject();
+    beakerxPO.runNotebookByUrl('/notebooks/test/notebooks/groovy/KernelAPITest.ipynb');
+  }, 2);
+
+  afterAll(function () {
+    beakerxPO.closeAndHaltNotebook();
+  });
+
+  var cellIndex;
+
+  describe('(Groovy) Adding jar file', function () {
+
+    var testValues = {
+      loadJarSuccess: 'Added jar: [loadMagicJarDemo.jar]',
+      magicCommandSuccess: 'Magic command %showEnvs was successfully added.',
+      envs: '{PATH='
+    };
+
+    it('Jar file is loaded correctly', function () {
+      cellIndex = 0;
+      var output = beakerxPO.runCellToGetOutputTextElement(cellIndex);
+      expect(output.isEnabled()).toBeTruthy();
+      expect(output.getText()).toBe(testValues.loadJarSuccess);
+    });
+
+    it('Magic command is added successfully', function () {
+      cellIndex += 1;
+      var output = beakerxPO.runCellToGetOutputTextElement(cellIndex);
+      expect(output.isEnabled()).toBeTruthy();
+      expect(output.getText()).toBe(testValues.magicCommandSuccess);
+    });
+
+    it('Envs are displayed correctly', function () {
+      cellIndex += 1;
+      var output = beakerxPO.runCellToGetOutputTextElement(cellIndex);
+      expect(output.isEnabled()).toBeTruthy();
+      expect(output.getText()).toContain(testValues.envs);
+    });
+  });
+
+  describe('(Groovy) Show null execution result as true', function() {
+    it('Cell displays true output', function () {
+      cellIndex += 1;
+      var codeCell = beakerxPO.runCodeCellByIndex(cellIndex);
+
+      expect(codeCell.$('div.output_result').isEnabled()).toBeTruthy();
+      expect(codeCell.$('div.output_result').getText()).toBe('true');
+    });
+  });
+
+  describe('(Groovy) Show null execution result as null', function() {
+    it('Cell displays null output', function () {
+      cellIndex += 1;
+      var codeCell = beakerxPO.runCodeCellByIndex(cellIndex);
+
+      expect(codeCell.$('div.output_result').isEnabled()).toBeTruthy();
+      expect(codeCell.$('div.output_result').getText()).toBe('null');
+    });
+  });
+
+  describe('(Groovy) Do not show null execution result', function() {
+    it('Cell displays no output', function () {
+      cellIndex += 1;
+      var codeCell = beakerxPO.runCodeCellByIndex(cellIndex);
+
+      expect(codeCell.$('div.output').getText()).toBe('');
+    });
+  });
+
+  describe('(Groovy) Jvm Repr', function() {
+    it('Displayer is properly loaded', function() {
+      cellIndex += 1;
+      var codeCell = beakerxPO.runCodeCellByIndex(cellIndex);
+
+      expect(codeCell.$('div.output').getText()).toBe('');
+    });
+
+    it('Cell displays proper output', function() {
+      cellIndex += 1;
+      var codeCell = beakerxPO.runCodeCellByIndex(cellIndex);
+
+      expect(codeCell.$('div.output_result').getText()).toBe('2');
+
+    });
+  });
+});
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