| /* |
| * 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.evaluators; |
| |
| import org.apache.metron.stellar.common.generated.StellarParser; |
| import org.apache.metron.stellar.dsl.Token; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| import static org.mockito.Mockito.*; |
| |
| public class DoubleLiteralEvaluatorTest { |
| NumberEvaluator<StellarParser.DoubleLiteralContext> evaluator; |
| StellarParser.DoubleLiteralContext context; |
| |
| @BeforeEach |
| public void setUp() throws Exception { |
| evaluator = new DoubleLiteralEvaluator(); |
| context = mock(StellarParser.DoubleLiteralContext.class); |
| } |
| |
| @Test |
| public void verifyHappyPathEvaluation() { |
| when(context.getText()).thenReturn("100D"); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(context, null); |
| assertEquals(new Token<>(100D, Double.class, null), evaluated); |
| |
| verify(context).getText(); |
| verifyNoMoreInteractions(context); |
| } |
| |
| @Test |
| public void verifyNumberFormationExceptionWithEmptyString() { |
| when(context.getText()).thenReturn(""); |
| assertThrows(NumberFormatException.class, () -> evaluator.evaluate(context, null)); |
| } |
| |
| @Test |
| public void throwIllegalArgumentExceptionWhenContextIsNull() { |
| IllegalArgumentException e = assertThrows(IllegalArgumentException.class, () -> evaluator.evaluate(null, null)); |
| assertEquals("Cannot evaluate a context that is null.", e.getMessage()); |
| } |
| } |