/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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. */ package org.apache.zeppelin.python; import org.apache.zeppelin.display.AngularObjectRegistry; import org.apache.zeppelin.display.GUI; import org.apache.zeppelin.interpreter.Interpreter; import org.apache.zeppelin.interpreter.InterpreterContext; import org.apache.zeppelin.interpreter.InterpreterContextRunner; import org.apache.zeppelin.interpreter.InterpreterGroup; import org.apache.zeppelin.interpreter.InterpreterOutput; import org.apache.zeppelin.interpreter.InterpreterOutputListener; import org.apache.zeppelin.interpreter.InterpreterResult; import org.apache.zeppelin.interpreter.InterpreterResultMessageOutput; import org.apache.zeppelin.resource.LocalResourcePool; import org.apache.zeppelin.user.AuthenticationInfo; import org.junit.After; import org.junit.Before; import org.junit.Test; import java.io.IOException; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Properties; import static org.junit.Assert.*; public class PythonInterpreterMatplotlibTest implements InterpreterOutputListener { private InterpreterGroup intpGroup; private PythonInterpreter python; private InterpreterContext context; InterpreterOutput out; @Before public void setUp() throws Exception { Properties p = new Properties(); p.setProperty("zeppelin.python", "python"); p.setProperty("zeppelin.python.maxResult", "100"); intpGroup = new InterpreterGroup(); python = new PythonInterpreter(p); python.setInterpreterGroup(intpGroup); List<Interpreter> interpreters = new LinkedList<>(); interpreters.add(python); intpGroup.put("note", interpreters); out = new InterpreterOutput(this); context = new InterpreterContext("note", "id", null, "title", "text", new AuthenticationInfo(), new HashMap<String, Object>(), new GUI(), new AngularObjectRegistry(intpGroup.getId(), null), new LocalResourcePool("id"), new LinkedList<InterpreterContextRunner>(), out); python.open(); } @After public void afterTest() throws IOException { python.close(); } @Test public void dependenciesAreInstalled() { // matplotlib InterpreterResult ret = python.interpret("import matplotlib", context); assertEquals(ret.message().toString(), InterpreterResult.Code.SUCCESS, ret.code()); // inline backend ret = python.interpret("import backend_zinline", context); assertEquals(ret.message().toString(), InterpreterResult.Code.SUCCESS, ret.code()); } @Test public void showPlot() throws IOException { // Simple plot test InterpreterResult ret; ret = python.interpret("import matplotlib.pyplot as plt", context); ret = python.interpret("z.configure_mpl(interactive=False)", context); ret = python.interpret("plt.plot([1, 2, 3])", context); ret = python.interpret("plt.show()", context); assertEquals(new String(out.getOutputAt(0).toByteArray()), InterpreterResult.Code.SUCCESS, ret.code()); assertEquals(new String(out.getOutputAt(0).toByteArray()), InterpreterResult.Type.TEXT, out.getOutputAt(0).getType()); assertEquals(new String(out.getOutputAt(1).toByteArray()), InterpreterResult.Type.HTML, out.getOutputAt(1).getType()); assertTrue(new String(out.getOutputAt(1).toByteArray()).contains("data:image/png;base64")); assertTrue(new String(out.getOutputAt(1).toByteArray()).contains("<div>")); } @Test // Test for when configuration is set to auto-close figures after show(). public void testClose() throws IOException { InterpreterResult ret; InterpreterResult ret1; InterpreterResult ret2; ret = python.interpret("import matplotlib.pyplot as plt", context); ret = python.interpret("z.configure_mpl(interactive=False)", context); ret = python.interpret("plt.plot([1, 2, 3])", context); ret1 = python.interpret("plt.show()", context); // Second call to show() should print nothing, and Type should be TEXT. // This is because when close=True, there should be no living instances // of FigureManager, causing show() to return before setting the output // type to HTML. ret = python.interpret("plt.show()", context); assertEquals(new String(out.getOutputAt(0).toByteArray()), InterpreterResult.Code.SUCCESS, ret.code()); assertEquals(0, ret.message().size()); // Now test that new plot is drawn. It should be identical to the // previous one. ret = python.interpret("plt.plot([1, 2, 3])", context); String msg1 = new String(out.getOutputAt(0).toByteArray()); InterpreterResult.Type type1 = out.getOutputAt(0).getType(); ret2 = python.interpret("plt.show()", context); String msg2 = new String(out.getOutputAt(0).toByteArray()); InterpreterResult.Type type2 = out.getOutputAt(0).getType(); assertEquals(msg1, msg2); assertEquals(type1, type2); } @Test // Test for when configuration is set to not auto-close figures after show(). public void testNoClose() throws IOException { InterpreterResult ret; InterpreterResult ret1; InterpreterResult ret2; ret = python.interpret("import matplotlib.pyplot as plt", context); ret = python.interpret("z.configure_mpl(interactive=False, close=False)", context); ret = python.interpret("plt.plot([1, 2, 3])", context); ret1 = python.interpret("plt.show()", context); // Second call to show() should print nothing, and Type should be HTML. // This is because when close=False, there should be living instances // of FigureManager, causing show() to set the output // type to HTML even though the figure is inactive. ret = python.interpret("plt.show()", context); String msg1 = new String(out.getOutputAt(0).toByteArray()); assertNotSame("", msg1); // Now test that plot can be reshown if it is updated. It should be // different from the previous one because it will plot the same line // again but in a different color. ret = python.interpret("plt.plot([1, 2, 3])", context); msg1 = new String(out.getOutputAt(1).toByteArray()); ret2 = python.interpret("plt.show()", context); String msg2 = new String(out.getOutputAt(1).toByteArray()); assertNotSame(msg1, msg2); } @Override public void onUpdateAll(InterpreterOutput out) { } @Override public void onAppend(int index, InterpreterResultMessageOutput out, byte[] line) { } @Override public void onUpdate(int index, InterpreterResultMessageOutput out) { } }