| /* |
| * |
| * 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.metron.stellar.common.shell; |
| |
| import com.google.common.collect.ImmutableMap; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Properties; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertTrue; |
| |
| /** |
| * Tests the DefaultStellarShellExecutor class. |
| */ |
| public class DefaultStellarShellExecutorTest { |
| |
| DefaultStellarShellExecutor executor; |
| boolean notified; |
| |
| @Before |
| public void setup() throws Exception { |
| Properties props = new Properties(); |
| executor = new DefaultStellarShellExecutor(props, Optional.empty()); |
| executor.init(); |
| } |
| |
| @Test |
| public void testAssignment() { |
| |
| // x = 2 + 2 |
| { |
| StellarResult result = executor.execute("x := 2 + 2"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(4, result.getValue().get()); |
| assertEquals(4, executor.getVariables().get("x")); |
| } |
| |
| // y = x + 2 |
| { |
| StellarResult result = executor.execute("y := x + 2"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(6, result.getValue().get()); |
| assertEquals(6, executor.getVariables().get("y")); |
| } |
| |
| // z = x + y |
| { |
| StellarResult result = executor.execute("z := x + y"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(10, result.getValue().get()); |
| assertEquals(10, executor.getVariables().get("z")); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testAssignmentOfLists() { |
| List<Integer> expected = Arrays.asList(1,2,3,4,5); |
| |
| // assign a list to a variable |
| StellarResult result = executor.execute("x := [1,2,3,4,5]"); |
| |
| // the result should be a list |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(expected, result.getValue().get()); |
| |
| // the variable should also be the same list |
| List<Integer> variable = (List<Integer>) executor.getVariables().get("x"); |
| assertEquals(expected, variable); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testAssignmentOfMaps() { |
| Map<String, Integer> expected = ImmutableMap.<String, Integer>builder() |
| .put("a", 10) |
| .put("b", 20) |
| .build(); |
| |
| // assign a list to a variable |
| StellarResult result = executor.execute("x := {'a':10, 'b':20}"); |
| |
| // the result should be a map |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(expected, result.getValue().get()); |
| |
| // the variable should also be the same list |
| Map<String, Integer> variable = (Map<String, Integer>) executor.getVariables().get("x"); |
| assertEquals(expected, variable); |
| } |
| |
| @Test |
| public void testAssignmentWithOddWhitespace() { |
| StellarResult result = executor.execute(" x := 2 + 2 "); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(4, result.getValue().get()); |
| assertEquals(4, executor.getVariables().get("x")); |
| } |
| |
| @Test |
| public void testBadAssignment() { |
| StellarResult result = executor.execute("x := 2 + "); |
| assertTrue(result.isError()); |
| assertTrue(result.getException().isPresent()); |
| } |
| |
| @Test |
| public void testExpression() { |
| StellarResult result = executor.execute("2 + 2"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(4, result.getValue().get()); |
| } |
| |
| @Test |
| public void testExpressionWithOddWhitespace() { |
| StellarResult result = executor.execute(" 2 + 2"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(4, result.getValue().get()); |
| } |
| |
| @Test |
| public void testBadExpression() { |
| StellarResult result = executor.execute("2 + "); |
| assertTrue(result.isError()); |
| assertTrue(result.getException().isPresent()); |
| } |
| |
| @Test |
| public void testMagicCommand() { |
| // create a var that we can see with the magic command |
| executor.execute("x := 2 + 2"); |
| |
| // just testing that we can execute the magic, not the actual result |
| StellarResult result = executor.execute("%vars"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertNotNull(result.getValue().get()); |
| } |
| |
| @Test |
| public void testDefineGlobal() { |
| |
| // create a global var |
| executor.execute("%define x := 2"); |
| |
| assertFalse(executor.getVariables().containsKey("x")); |
| |
| // the global should have been defined |
| assertEquals(2, executor.getGlobalConfig().get("x")); |
| } |
| |
| @Test |
| public void testBadMagicCommand() { |
| StellarResult result = executor.execute("%invalid"); |
| assertTrue(result.isError()); |
| assertTrue(result.getException().isPresent()); |
| } |
| |
| @Test |
| public void testDocCommand() { |
| // just testing that we can execute the doc, not the actual result |
| StellarResult result = executor.execute("?TO_STRING"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertNotNull(result.getValue().get()); |
| } |
| |
| @Test |
| public void testBadDocCommand() { |
| StellarResult result = executor.execute("?INVALID"); |
| assertTrue(result.isError()); |
| assertTrue(result.getException().isPresent()); |
| } |
| |
| @Test |
| public void testQuit() { |
| StellarResult result = executor.execute("quit"); |
| assertTrue(result.isTerminate()); |
| } |
| |
| @Test |
| public void testAssign() { |
| { |
| // this is how variables get loaded into the REPL directly from a file |
| executor.assign("x", 10, Optional.empty()); |
| } |
| { |
| StellarResult result = executor.execute("x + 2"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals(12, result.getValue().get()); |
| } |
| } |
| |
| @Test |
| public void testNotifyVariableListeners() { |
| notified = false; |
| executor.addVariableListener((var, value) -> { |
| assertEquals("x", var); |
| assertEquals(4, value.getResult()); |
| notified = true; |
| }); |
| |
| executor.execute("x := 2 + 2"); |
| assertTrue(notified); |
| } |
| |
| @Test |
| public void testNotifySpecialListeners() throws Exception { |
| |
| // setup an executor |
| notified = false; |
| Properties props = new Properties(); |
| DefaultStellarShellExecutor executor = new DefaultStellarShellExecutor(props, Optional.empty()); |
| |
| // setup listener |
| notified = false; |
| executor.addSpecialListener((magic) -> { |
| assertNotNull(magic); |
| assertNotNull(magic.getCommand()); |
| notified = true; |
| }); |
| |
| // initialize... magics should be setup during initialization |
| executor.init(); |
| assertTrue(notified); |
| } |
| |
| @Test |
| public void testNotifyFunctionListeners() throws Exception { |
| // setup an executor |
| notified = false; |
| Properties props = new Properties(); |
| DefaultStellarShellExecutor executor = new DefaultStellarShellExecutor(props, Optional.empty()); |
| |
| // setup listener |
| notified = false; |
| executor.addFunctionListener((fn) -> { |
| assertNotNull(fn); |
| assertNotNull(fn.getName()); |
| assertNotNull(fn.getFunction()); |
| notified = true; |
| }); |
| |
| // initialize... magics should be setup during initialization |
| executor.init(); |
| assertTrue(notified); |
| } |
| |
| @Test |
| public void testEmptyInput() { |
| StellarResult result = executor.execute(""); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals("", result.getValue().get()); |
| } |
| |
| @Test |
| public void testComment() { |
| StellarResult result = executor.execute("# this is a comment"); |
| assertTrue(result.isSuccess()); |
| assertTrue(result.getValue().isPresent()); |
| assertEquals("", result.getValue().get()); |
| } |
| |
| /** |
| * If the executor is initialized without a connection to Zookeeper, the globals should be |
| * defined, but empty. This allows a user to '%define' their own with magic commands even |
| * without Zookeeper. |
| */ |
| @Test |
| public void testEmptyGlobalsWithNoZookeeper() { |
| assertNotNull(executor.getGlobalConfig()); |
| assertEquals(0, executor.getGlobalConfig().size()); |
| } |
| } |