| /* |
| * 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.antlr.v4.runtime.tree.TerminalNode; |
| import org.apache.metron.stellar.common.generated.StellarParser; |
| import org.apache.metron.stellar.dsl.ParseException; |
| import org.apache.metron.stellar.dsl.Token; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import java.io.Serializable; |
| |
| import static org.junit.jupiter.api.Assertions.*; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| @SuppressWarnings("ALL") |
| public class ComparisonOperatorsEvaluatorTest { |
| ComparisonExpressionEvaluator evaluator; |
| |
| @BeforeEach |
| public void setUp() throws Exception { |
| evaluator = new ComparisonOperatorsEvaluator(); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void nonSupportedOperatorThrowsExceptionNonNumbericComparable() { |
| Token<String> left = mock(Token.class); |
| when(left.getValue()).thenReturn("b"); |
| |
| Token<String> right = mock(Token.class); |
| when(right.getValue()).thenReturn("a"); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| |
| ParseException e = assertThrows(ParseException.class, () -> evaluator.evaluate(left, right, op)); |
| assertTrue(e.getMessage().contains("Unsupported operator: ")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void nonSupportedOperatorThrowsExceptionNumbericComparison() { |
| Token<Long> left = mock(Token.class); |
| when(left.getValue()).thenReturn(1L); |
| |
| Token<Long> right = mock(Token.class); |
| when(right.getValue()).thenReturn(0L); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| |
| ParseException e = assertThrows(ParseException.class, () -> evaluator.evaluate(left, right, op)); |
| assertTrue(e.getMessage().contains("Unsupported operator: ")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void leftIsNullThenThrowException() { |
| Token<Long> left = mock(Token.class); |
| Token<Long> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1L); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void rightIsNullThenReturnFalse() { |
| Token<Long> left = mock(Token.class); |
| when(left.getValue()).thenReturn(1L); |
| Token<Long> right = mock(Token.class); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void rightAndLeftIsNullThenReturnFalse() { |
| Token<Long> left = mock(Token.class); |
| Token<Long> right = mock(Token.class); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void throwParseExceptionWhenTryingToCompareNonComparable() { |
| Token<Serializable> left = mock(Token.class); |
| when(left.getValue()).thenReturn(mock(Serializable.class)); |
| |
| Token<Serializable> right = mock(Token.class); |
| when(right.getValue()).thenReturn(mock(Serializable.class)); |
| |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| |
| ParseException e = assertThrows(ParseException.class, () -> evaluator.evaluate(left, right, op)); |
| assertTrue(e.getMessage().contains("Unsupported operations. The following expression is invalid: ")); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsProperlyWorkForLongs() { |
| Token<Long> left = mock(Token.class); |
| when(left.getValue()).thenReturn(0L); |
| |
| Token<Long> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1L); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsProperlyWorkForDoubles() { |
| Token<Double> left = mock(Token.class); |
| when(left.getValue()).thenReturn(0D); |
| |
| Token<Double> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1D); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsProperlyWorkForFloats() { |
| Token<Float> left = mock(Token.class); |
| when(left.getValue()).thenReturn(0F); |
| |
| Token<Float> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1F); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsProperlyWorkForInts() { |
| Token<Integer> left = mock(Token.class); |
| when(left.getValue()).thenReturn(0); |
| |
| Token<Integer> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForMixedTypesDoublesLong() { |
| Token<Long> left = mock(Token.class); |
| when(left.getValue()).thenReturn(1L); |
| |
| Token<Double> right = mock(Token.class); |
| when(right.getValue()).thenReturn(1.0000001D); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertTrue(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertFalse(evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForMixedTypesDoublesFloat() { |
| final double leftValue = 1.0000001D; |
| final float rightValue = 1.0000001F; |
| |
| Token<Double> left = mock(Token.class); |
| when(left.getValue()).thenReturn(leftValue); |
| |
| Token<Float> right = mock(Token.class); |
| when(right.getValue()).thenReturn(rightValue); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue < rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue <= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue > rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue >= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForMixedTypesFloatIntegers() { |
| final int leftValue = 1; |
| final float rightValue = 1.0000001F; |
| |
| Token<Integer> left = mock(Token.class); |
| when(left.getValue()).thenReturn(leftValue); |
| |
| Token<Float> right = mock(Token.class); |
| when(right.getValue()).thenReturn(rightValue); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue < rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue <= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue > rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue >= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForMixedTypesFloatIntegers2() { |
| final int leftValue = 1; |
| final float rightValue = 1.00000001F; |
| |
| Token<Integer> left = mock(Token.class); |
| when(left.getValue()).thenReturn(leftValue); |
| |
| Token<Float> right = mock(Token.class); |
| when(right.getValue()).thenReturn(rightValue); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue < rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue <= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue > rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue >= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForMixedTypesLongIntegers() { |
| final int leftValue = 1; |
| final long rightValue = 3L; |
| |
| Token<Integer> left = mock(Token.class); |
| when(left.getValue()).thenReturn(leftValue); |
| |
| Token<Long> right = mock(Token.class); |
| when(right.getValue()).thenReturn(rightValue); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue < rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue <= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue > rightValue, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue >= rightValue, evaluator.evaluate(left, right, op)); |
| } |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void makeSureAllOperatorsWorkForNonIntegerComparableTypes() { |
| final String leftValue = "a"; |
| final String rightValue = "b"; |
| |
| Token<String> left = mock(Token.class); |
| when(left.getValue()).thenReturn(leftValue); |
| |
| Token<String> right = mock(Token.class); |
| when(right.getValue()).thenReturn(rightValue); |
| |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue.compareTo(rightValue) < 0, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.LTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue.compareTo(rightValue) <= 0, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GT()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue.compareTo(rightValue) > 0, evaluator.evaluate(left, right, op)); |
| } |
| { |
| StellarParser.ComparisonOpContext op = mock(StellarParser.ComparisonOpContext.class); |
| when(op.GTE()).thenReturn(mock(TerminalNode.class)); |
| assertEquals(leftValue.compareTo(rightValue) >= 0, evaluator.evaluate(left, right, op)); |
| } |
| } |
| } |