| /* |
| * 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.commons.lang3.tuple.Pair; |
| import org.apache.metron.stellar.dsl.Token; |
| import org.junit.Test; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| @SuppressWarnings("unchecked") |
| public class ArithmeticEvaluatorTest { |
| ArithmeticEvaluator evaluator = ArithmeticEvaluator.INSTANCE; |
| |
| @Test |
| public void evaluateDoubleShouldReturnDoubleAdd() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Double> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2D); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Double); |
| assertEquals(3.0D, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerAdd() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(3, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateFloatsShouldReturnFloatAdd() throws Exception { |
| Token<Float> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1F); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Float); |
| assertEquals(3F, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateLongsShouldReturnLongAdd() throws Exception { |
| Token<Long> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1L); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Long); |
| assertEquals(3L, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnDoubleMul() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Double> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2D); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Double); |
| assertEquals(2.0D, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerMul() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(2, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateFloatsShouldReturnFloatMul() throws Exception { |
| Token<Float> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1F); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Float); |
| assertEquals(2F, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateLongsShouldReturnLongMul() throws Exception { |
| Token<Long> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1L); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Long); |
| assertEquals(2L, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateDoubleShouldReturnDoubleSub() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Double> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2D); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Double); |
| assertEquals(-1.0D, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerSub() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(-1, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateFloatsShouldReturnFloatSub() throws Exception { |
| Token<Float> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1F); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Float); |
| assertEquals(-1F, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateLongsShouldReturnLongSub() throws Exception { |
| Token<Long> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1L); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Long); |
| assertEquals(-1L, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateDoubleShouldReturnDoubleDiv() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Double> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2D); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Double); |
| assertEquals(1 / 2D, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerDiv() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(1 / 2, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateFloatsShouldReturnFloatDiv() throws Exception { |
| Token<Float> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1F); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Float); |
| assertEquals(0.5F, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateLongsShouldReturnLongDiv() throws Exception { |
| Token<Long> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1L); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Long); |
| assertEquals(0L, evaluated.getValue()); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void evaluateShouldThroughIllegalArgumentExceptionWhenInputIsNull() throws Exception { |
| evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), null); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void evaluateShouldThroughIllegalArgumentExceptionWhenInputsKeyIsNull() throws Exception { |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(null, mock(Token.class)); |
| evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void evaluateShouldThroughIllegalArgumentExceptionWhenInputsValueIsNull() throws Exception { |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(mock(Token.class), null); |
| evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), p); |
| } |
| |
| @Test |
| public void evaluateShouldConvertShortsToIntegersType() throws Exception { |
| Token<Short> l = mock(Token.class); |
| when(l.getValue()).thenReturn((short) 2); |
| |
| Token<Short> r = mock(Token.class); |
| when(r.getValue()).thenReturn((short) 3); |
| |
| Token<? extends Number> evaluated0 = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), Pair.of(l, r)); |
| Token<? extends Number> evaluated1 = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), Pair.of(l, r)); |
| Token<? extends Number> evaluated2 = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), Pair.of(l, r)); |
| Token<? extends Number> evaluated3 = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), Pair.of(l, r)); |
| |
| assertTrue(evaluated0.getValue() instanceof Integer); |
| assertEquals(5, evaluated0.getValue()); |
| |
| assertTrue(evaluated1.getValue() instanceof Integer); |
| assertEquals(-1, evaluated1.getValue()); |
| |
| assertTrue(evaluated2.getValue() instanceof Integer); |
| assertEquals(6, evaluated2.getValue()); |
| |
| assertTrue(evaluated3.getValue() instanceof Integer); |
| assertEquals(0, evaluated3.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerWhenLeftsValueIsNull() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(null); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(2); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(2, evaluated.getValue()); |
| } |
| |
| @Test |
| public void evaluateIntegerShouldReturnIntegerWhenRightsValueIsNull() throws Exception { |
| Token<Integer> l = mock(Token.class); |
| when(l.getValue()).thenReturn(1); |
| |
| Token<Integer> r = mock(Token.class); |
| when(r.getValue()).thenReturn(null); |
| |
| Pair<Token<? extends Number>, Token<? extends Number>> p = Pair.of(l, r); |
| |
| Token<? extends Number> evaluated = evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), p); |
| |
| assertTrue(evaluated.getValue() instanceof Integer); |
| assertEquals(1, evaluated.getValue()); |
| } |
| |
| @Test |
| public void verifyExpectedReturnTypes() throws Exception { |
| Token<Integer> integer = mock(Token.class); |
| when(integer.getValue()).thenReturn(1); |
| |
| Token<Long> lng = mock(Token.class); |
| when(lng.getValue()).thenReturn(1L); |
| |
| Token<Double> dbl = mock(Token.class); |
| when(dbl.getValue()).thenReturn(1.0D); |
| |
| Token<Float> flt = mock(Token.class); |
| when(flt.getValue()).thenReturn(1.0F); |
| |
| Map<Pair<Token<? extends Number>, Token<? extends Number>>, Class<? extends Number>> expectedReturnTypeMappings = |
| new HashMap<Pair<Token<? extends Number>, Token<? extends Number>>, Class<? extends Number>>() {{ |
| put(Pair.of(flt, lng), Float.class); |
| put(Pair.of(flt, dbl), Double.class); |
| put(Pair.of(flt, flt), Float.class); |
| put(Pair.of(flt, integer), Float.class); |
| |
| put(Pair.of(lng, lng), Long.class); |
| put(Pair.of(lng, dbl), Double.class); |
| put(Pair.of(lng, flt), Float.class); |
| put(Pair.of(lng, integer), Long.class); |
| |
| put(Pair.of(dbl, lng), Double.class); |
| put(Pair.of(dbl, dbl), Double.class); |
| put(Pair.of(dbl, flt), Double.class); |
| put(Pair.of(dbl, integer), Double.class); |
| |
| put(Pair.of(integer, lng), Long.class); |
| put(Pair.of(integer, dbl), Double.class); |
| put(Pair.of(integer, flt), Float.class); |
| put(Pair.of(integer, integer), Integer.class); |
| }}; |
| |
| expectedReturnTypeMappings.forEach( (pair, expectedClass) -> { |
| assertTrue(evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.addition(null), pair).getValue().getClass() == expectedClass); |
| assertTrue(evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.division(null), pair).getValue().getClass() == expectedClass); |
| assertTrue(evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.subtraction(null), pair).getValue().getClass() == expectedClass); |
| assertTrue(evaluator.evaluate(ArithmeticEvaluator.ArithmeticEvaluatorFunctions.multiplication(null), pair).getValue().getClass() == expectedClass); |
| }); |
| } |
| } |