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Excluding performance and integration tests from
build task (#1925)
This PR moves all tests in `cpg-neo4j` that depend on external frontends to an integration test and moves integration tests and performance tests out of the `build` task. Fixes #1915
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| Original file line number | Diff line number | Diff line change |
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@@ -21,3 +21,5 @@ logs | |
| *.log | ||
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| gradle.properties | ||
| LibrariesTest.kt | ||
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108 changes: 108 additions & 0 deletions
108
...performanceTest/kotlin/de/fraunhofer/aisec/cpg/frontends/cxx/PerformanceRegressionTest.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,108 @@ | ||
| /* | ||
| * Copyright (c) 2025, Fraunhofer AISEC. All rights reserved. | ||
| * | ||
| * Licensed 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 de.fraunhofer.aisec.cpg.frontends.cxx | ||
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| import de.fraunhofer.aisec.cpg.frontends.TestLanguageFrontend | ||
| import de.fraunhofer.aisec.cpg.graph.Node | ||
| import de.fraunhofer.aisec.cpg.graph.declarations.TranslationUnitDeclaration | ||
| import de.fraunhofer.aisec.cpg.graph.declarations.VariableDeclaration | ||
| import de.fraunhofer.aisec.cpg.graph.edges.ast.AstEdge | ||
| import de.fraunhofer.aisec.cpg.graph.newLiteral | ||
| import de.fraunhofer.aisec.cpg.graph.primitiveType | ||
| import de.fraunhofer.aisec.cpg.graph.statements.expressions.InitializerListExpression | ||
| import de.fraunhofer.aisec.cpg.helpers.Benchmark | ||
| import de.fraunhofer.aisec.cpg.test.analyzeAndGetFirstTU | ||
| import java.time.Duration | ||
| import java.time.temporal.ChronoUnit | ||
| import kotlin.io.path.createTempFile | ||
| import kotlin.io.path.writeText | ||
| import kotlin.test.* | ||
| import org.junit.jupiter.api.assertTimeout | ||
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| class PerformanceRegressionTest { | ||
| /** | ||
| * This test demonstrates two performance bottlenecks. | ||
| * * First, we want to make a large initializer list with literals and make sure we parse this | ||
| * in reasonable time. We had issues with literals and their hashcode when they were inserted | ||
| * into a set. | ||
| * * Second, we want to make that list essentially a one-liner because we had issues when | ||
| * populating the [de.fraunhofer.aisec.cpg.graph.Node.location] property using | ||
| * [CXXLanguageFrontend.locationOf]. | ||
| */ | ||
| @Test | ||
| fun testParseLargeList() { | ||
| val range = 0..40000 | ||
| // intentionally make this one very long line, because we had problems with that | ||
| val string = "static int my_array[] = {" + range.toList().joinToString(", ") + "};" | ||
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| val tmp = createTempFile("c_range", ".c") | ||
| tmp.writeText(string) | ||
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| // this should not exceed 30 seconds (it takes about 2800ms on a good machine, about | ||
| // 10-20s on GitHub, depending on the slowness of the runner) | ||
| assertTimeout(Duration.of(30, ChronoUnit.SECONDS)) { | ||
| val tu = | ||
| analyzeAndGetFirstTU(listOf(tmp.toFile()), tmp.parent, true) { | ||
| // No need for parallel processing for a single file. this might make it fast | ||
| // enough for those special moments where for some reasons the GitHub runners | ||
| // are slowing down (maybe because of some hidden quota). | ||
| it.useParallelFrontends(false) | ||
| it.registerLanguage<CLanguage>() | ||
| } | ||
| assertNotNull(tu) | ||
| } | ||
| } | ||
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| @Test | ||
| fun testTraversal() { | ||
| with(TestLanguageFrontend()) { | ||
| val tu = TranslationUnitDeclaration() | ||
| val decl = VariableDeclaration() | ||
| val list = InitializerListExpression() | ||
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| for (i in 0 until 50000) { | ||
| list.initializerEdges.add(AstEdge(list, newLiteral(i, primitiveType("int"), null))) | ||
| } | ||
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| decl.initializer = list | ||
| tu.addDeclaration(decl) | ||
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| // Even on a slow machine, this should not exceed 1 second (it should be more like | ||
| // 200-300ms) | ||
| assertTimeout(Duration.of(1, ChronoUnit.SECONDS)) { | ||
| val b = Benchmark(PerformanceRegressionTest::class.java, "getAstChildren") | ||
| doNothing(tu) | ||
| b.addMeasurement() | ||
| } | ||
| } | ||
| } | ||
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| fun doNothing(node: Node) { | ||
| for (child in node.astChildren) { | ||
| doNothing(child) | ||
| } | ||
| } | ||
| } |
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