| /** |
| * 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.dsl.functions; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.apache.metron.stellar.common.system.Environment; |
| import org.junit.Test; |
| |
| import java.util.ArrayList; |
| |
| import static org.hamcrest.CoreMatchers.equalTo; |
| import static org.junit.Assert.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| public class SystemFunctionsTest { |
| |
| @Test |
| public void smoke_test_non_mocked_env() { |
| SystemFunctions.EnvGet envGet = new SystemFunctions.EnvGet(); |
| String envVal = (String) envGet.apply(ImmutableList.of("ENV_GET_VAR")); |
| assertThat("Value should not exist", envVal, equalTo(null)); |
| } |
| |
| @Test |
| public void env_get_returns_value() { |
| Environment env = mock(Environment.class); |
| when(env.get("ENV_GET_VAR")).thenReturn("ENV_GET_VALUE"); |
| SystemFunctions.EnvGet envGet = new SystemFunctions.EnvGet(env); |
| String envVal = (String) envGet.apply(ImmutableList.of("ENV_GET_VAR")); |
| assertThat("Value should match", envVal, equalTo("ENV_GET_VALUE")); |
| } |
| |
| @Test |
| public void env_get_returns_null_if_key_is_not_string() { |
| SystemFunctions.EnvGet envGet = new SystemFunctions.EnvGet(); |
| String envVal = (String) envGet.apply(ImmutableList.of(new ArrayList())); |
| assertThat("Value should be null", envVal, equalTo(null)); |
| } |
| |
| @Test |
| public void property_get_returns_value() { |
| System.getProperties().put("ENV_GET_VAR", "ENV_GET_VALUE"); |
| SystemFunctions.PropertyGet propertyGet = new SystemFunctions.PropertyGet(); |
| String propertyVal = (String) propertyGet.apply(ImmutableList.of("ENV_GET_VAR")); |
| assertThat("Value should match", propertyVal, equalTo("ENV_GET_VALUE")); |
| } |
| |
| @Test |
| public void property_get_nonexistent_returns_null() { |
| SystemFunctions.PropertyGet propertyGet = new SystemFunctions.PropertyGet(); |
| String propertyVal = (String) propertyGet.apply(ImmutableList.of("PROPERTY_MISSING")); |
| assertThat("Value should not exist", propertyVal, equalTo(null)); |
| } |
| |
| @Test |
| public void property_get_returns_null_if_key_is_not_string() { |
| SystemFunctions.PropertyGet propertyGet = new SystemFunctions.PropertyGet(); |
| String propertyVal = (String) propertyGet.apply(ImmutableList.of(new ArrayList())); |
| assertThat("Value should be null", propertyVal, equalTo(null)); |
| } |
| |
| } |