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Fix computation of min in Summary report
Fixes apache#6043
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149 changes: 149 additions & 0 deletions
149
src/core/src/test/kotlin/org/apache/jmeter/util/CalculatorTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| /* | ||
| * 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.jmeter.util | ||
|
|
||
| import org.apache.jmeter.samplers.SampleResult | ||
| import org.junit.jupiter.api.Assertions.assertEquals | ||
| import org.junit.jupiter.api.Test | ||
| import kotlin.math.pow | ||
| import kotlin.math.sqrt | ||
|
|
||
| class CalculatorTest { | ||
| val calculator = Calculator() | ||
|
|
||
| @Test | ||
| fun min() { | ||
| assertEquals(Long.MAX_VALUE, calculator.min, "min()") | ||
| calculator.addSample(SampleResult(10, 42)) | ||
| assertEquals(42, calculator.min, "min(42)") | ||
| calculator.addSample(SampleResult(10, 40)) | ||
| assertEquals(40, calculator.min, "min(42, 40)") | ||
| calculator.addSample(SampleResult(10, 50)) | ||
| assertEquals(40, calculator.min, "min(42, 40, 50)") | ||
| calculator.addSample(SampleResult(10, 50).apply { sampleCount = 2 }) | ||
| assertEquals(25, calculator.min, "min(42, 40, 50, 50/2)") | ||
| } | ||
|
|
||
| @Test | ||
| fun max() { | ||
| assertEquals(Long.MIN_VALUE, calculator.max, "max()") | ||
| calculator.addSample(SampleResult(10, 40)) | ||
| assertEquals(40, calculator.max, "max(40)") | ||
| calculator.addSample(SampleResult(10, 42)) | ||
| assertEquals(42, calculator.max, "max(40, 42)") | ||
| calculator.addSample(SampleResult(10, 30)) | ||
| assertEquals(42, calculator.max, "max(40, 42, 30)") | ||
| calculator.addSample(SampleResult(10, 90).apply { sampleCount = 2 }) | ||
| assertEquals(45, calculator.max, "max(40, 42, 30, 90/2)") | ||
| } | ||
|
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||
| @Test | ||
| fun countLong() { | ||
| assertEquals(0, calculator.countLong, "countLong()") | ||
| calculator.addSample(SampleResult(10, 40)) | ||
| assertEquals(1, calculator.countLong, "countLong(40)") | ||
| calculator.addSample(SampleResult(10, 42)) | ||
| assertEquals(2, calculator.countLong, "countLong(40, 42)") | ||
| calculator.addSample(SampleResult(10, 42).apply { sampleCount = 2 }) | ||
| assertEquals(4, calculator.countLong, "countLong(40, 42, 42/2)") | ||
| } | ||
|
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||
| @Test | ||
| fun mean() { | ||
| assertEquals(0.0, calculator.mean, "mean()") | ||
| calculator.addSample(SampleResult(10, 40)) | ||
| assertEquals(40.0, calculator.mean, 0.001, "mean(40)") | ||
| calculator.addSample(SampleResult(10, 42)) | ||
| assertEquals((40.0 + 42.0) / 2, calculator.mean, 0.001, "mean(40, 42)") | ||
| calculator.addSample(SampleResult(10, 48).apply { sampleCount = 2 }) | ||
| assertEquals((40.0 + 42.0 + 48) / 4, calculator.mean, 0.001, "mean(40, 42, 48/2)") | ||
| } | ||
|
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||
| @Test | ||
| fun standardDeviation() { | ||
| assertEquals(0.0, calculator.standardDeviation, "standardDeviation()") | ||
| calculator.addSample(SampleResult(10, 40)) | ||
| assertEquals(0.0, calculator.standardDeviation, "standardDeviation(40)") | ||
| calculator.addSample(SampleResult(10, 42)) | ||
| assertEquals(1.0, calculator.standardDeviation, "standardDeviation(40, 42)") | ||
| calculator.addSample(SampleResult(10, 43)) | ||
| // Math.sqrt((sumOfSquares / count) - (mean * mean)) | ||
| assertEquals( | ||
| sqrt((40 * 40 + 42 * 42 + 43 * 43) / 3.0 - ((40.0 + 42 + 43) / 3).pow(2)), | ||
| calculator.standardDeviation, | ||
| 0.001, | ||
| "standardDeviation(40, 42, 43)" | ||
| ) | ||
| calculator.addSample(SampleResult(10, 48).apply { sampleCount = 2 }) | ||
| assertEquals( | ||
| sqrt((40 * 40 + 42 * 42 + 43 * 43 + 24 * 24 + 24 * 24) / 5.0 - ((40.0 + 42 + 43 + 24 + 24) / 5.0).pow(2)), | ||
| calculator.standardDeviation, | ||
| 0.001, | ||
| "standardDeviation(40, 42, 43, 48/2)" | ||
| ) | ||
| } | ||
|
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||
| @Test | ||
| fun errorPercentage() { | ||
| assertEquals(0.0, calculator.errorPercentage, 0.001, "errorPercentage()") | ||
| calculator.addSample(SampleResult(10, 40).apply { isSuccessful = false }) | ||
| assertEquals(1.0, calculator.errorPercentage, 0.001, "errorPercentage(KO)") | ||
| calculator.addSample(SampleResult(10, 42).apply { isSuccessful = false }) | ||
| assertEquals(1.0, calculator.errorPercentage, 0.001, "errorPercentage(KO, KO)") | ||
| calculator.addSample(SampleResult(10, 42).apply { isSuccessful = true }) | ||
| assertEquals(0.666, calculator.errorPercentage, 0.001, "errorPercentage(KO, KO, OK)") | ||
| } | ||
|
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| @Test | ||
| fun bytesPerSecond() { | ||
| assertEquals(0.0, calculator.bytesPerSecond, "bytesPerSecond()") | ||
| calculator.addSample(SampleResult(40, 30).apply { setBodySize(50L) }) | ||
| assertEquals( | ||
| 50.0 * 1000 / (40 - 10.0), | ||
| calculator.bytesPerSecond, | ||
| 0.001, | ||
| "bytesPerSecond({50bytes, 10ms..40ms})" | ||
| ) | ||
| calculator.addSample(SampleResult(60, 20).apply { setBodySize(70L) }) | ||
| assertEquals( | ||
| (50 + 70.0) * 1000 / (60 - 10.0), | ||
| calculator.bytesPerSecond, | ||
| 0.001, | ||
| "bytesPerSecond({50bytes, 10ms..40ms}, {70bytes, 40ms..60ms})" | ||
| ) | ||
| } | ||
|
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||
| @Test | ||
| fun sentBytesPerSecond() { | ||
| assertEquals(0.0, calculator.sentBytesPerSecond, "sentBytesPerSecond()") | ||
| calculator.addSample(SampleResult(40, 30).apply { sentBytes = 50L }) | ||
| assertEquals( | ||
| 50.0 * 1000 / (40 - 10.0), | ||
| calculator.sentBytesPerSecond, | ||
| 0.001, | ||
| "sentBytesPerSecond({sent=50bytes, 10ms..40ms})" | ||
| ) | ||
| calculator.addSample(SampleResult(60, 20).apply { sentBytes = 70L }) | ||
| assertEquals( | ||
| (50 + 70.0) * 1000 / (60 - 10.0), | ||
| calculator.sentBytesPerSecond, | ||
| 0.001, | ||
| "sentBytesPerSecond({sent=50bytes, 10ms..40ms}, {sent=70bytes, 40ms..60ms})" | ||
| ) | ||
| } | ||
| } |
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