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| 1 | +package datadog.gradle.plugin.jmh |
| 2 | + |
| 3 | +import datadog.gradle.plugin.testJvmConstraints.TestJvmConstraintsExtension.Companion.TEST_JVM_CONSTRAINTS |
| 4 | +import datadog.gradle.plugin.testJvmConstraints.TestJvmSpec |
| 5 | +import me.champeau.jmh.JmhParameters |
| 6 | +import org.assertj.core.api.Assertions.assertThat |
| 7 | +import org.gradle.api.JavaVersion |
| 8 | +import org.gradle.testfixtures.ProjectBuilder |
| 9 | +import org.junit.jupiter.api.Test |
| 10 | + |
| 11 | +class JmhConventionsPluginTest { |
| 12 | + @Test |
| 13 | + fun `plugin applies jmh and test-jvm-constraints`() { |
| 14 | + val project = ProjectBuilder.builder().build() |
| 15 | + |
| 16 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 17 | + |
| 18 | + assertThat(project.plugins.hasPlugin("me.champeau.jmh")).isTrue() |
| 19 | + assertThat(project.extensions.findByName(TEST_JVM_CONSTRAINTS)).isNotNull() |
| 20 | + } |
| 21 | + |
| 22 | + @Test |
| 23 | + fun `plugin provides the test jvm as an overridable default`() { |
| 24 | + val propertyName = "org.gradle.project.${TestJvmSpec.TEST_JVM}" |
| 25 | + val previousValue = System.setProperty(propertyName, JavaVersion.current().majorVersion) |
| 26 | + |
| 27 | + try { |
| 28 | + val project = ProjectBuilder.builder().build() |
| 29 | + |
| 30 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 31 | + |
| 32 | + val jmh = project.extensions.getByType(JmhParameters::class.java) |
| 33 | + val expectedExecutable = TestJvmSpec(project).javaTestLauncher.get().executablePath.asFile.absolutePath |
| 34 | + assertThat(jmh.jvm.get()).isEqualTo(expectedExecutable) |
| 35 | + |
| 36 | + jmh.jvm.set("module-jvm") |
| 37 | + assertThat(jmh.jvm.get()).isEqualTo("module-jvm") |
| 38 | + } finally { |
| 39 | + if (previousValue == null) { |
| 40 | + System.clearProperty(propertyName) |
| 41 | + } else { |
| 42 | + System.setProperty(propertyName, previousValue) |
| 43 | + } |
| 44 | + } |
| 45 | + } |
| 46 | + |
| 47 | + @Test |
| 48 | + fun `plugin provides jmh project properties as defaults`() { |
| 49 | + withGradleProperties( |
| 50 | + "jmh.includes" to "FooBenchmark, BarBenchmark", |
| 51 | + "jmh.profilers" to "stack, gc", |
| 52 | + "jmh.forks" to "1", |
| 53 | + "jmh.threads" to "1", |
| 54 | + ) { |
| 55 | + val project = ProjectBuilder.builder().build() |
| 56 | + |
| 57 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 58 | + |
| 59 | + val jmh = project.extensions.getByType(JmhParameters::class.java) |
| 60 | + assertThat(jmh.includes.get()).containsExactly("FooBenchmark|BarBenchmark") |
| 61 | + assertThat(jmh.profilers.get()).containsExactly("stack", "gc") |
| 62 | + assertThat(jmh.fork.get()).isEqualTo(1) |
| 63 | + assertThat(jmh.threads.get()).isEqualTo(1) |
| 64 | + } |
| 65 | + } |
| 66 | + |
| 67 | + @Test |
| 68 | + fun `jmh properties are absent when the project properties are not set`() { |
| 69 | + val project = ProjectBuilder.builder().build() |
| 70 | + |
| 71 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 72 | + |
| 73 | + val jmh = project.extensions.getByType(JmhParameters::class.java) |
| 74 | + assertThat(jmh.includes.get()).isEmpty() |
| 75 | + assertThat(jmh.profilers.get()).isEmpty() |
| 76 | + assertThat(jmh.fork.isPresent).isFalse() |
| 77 | + assertThat(jmh.threads.isPresent).isFalse() |
| 78 | + } |
| 79 | + |
| 80 | + @Test |
| 81 | + fun `module jmh settings override project property defaults`() { |
| 82 | + withGradleProperties( |
| 83 | + "jmh.profilers" to "async", |
| 84 | + "jmh.forks" to "1", |
| 85 | + ) { |
| 86 | + val project = ProjectBuilder.builder().build() |
| 87 | + |
| 88 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 89 | + |
| 90 | + val jmh = project.extensions.getByType(JmhParameters::class.java) |
| 91 | + jmh.profilers.set(listOf("gc")) |
| 92 | + jmh.fork.set(4) |
| 93 | + |
| 94 | + assertThat(jmh.profilers.get()).containsExactly("gc") |
| 95 | + assertThat(jmh.fork.get()).isEqualTo(4) |
| 96 | + } |
| 97 | + } |
| 98 | + |
| 99 | + @Test |
| 100 | + fun `applying test-jvm-constraints before jmh-conventions is idempotent`() { |
| 101 | + val project = ProjectBuilder.builder().build() |
| 102 | + |
| 103 | + project.pluginManager.apply("dd-trace-java.test-jvm-constraints") |
| 104 | + project.pluginManager.apply("dd-trace-java.jmh-conventions") |
| 105 | + |
| 106 | + assertThat(project.extensions.findByName(TEST_JVM_CONSTRAINTS)).isNotNull() |
| 107 | + } |
| 108 | + |
| 109 | + private fun withGradleProperties(vararg properties: Pair<String, String>, assertions: () -> Unit) { |
| 110 | + val systemProperties = properties.associate { (name, value) -> "org.gradle.project.$name" to value } |
| 111 | + val previousValues = systemProperties.keys.associateWith(System::getProperty) |
| 112 | + |
| 113 | + try { |
| 114 | + systemProperties.forEach(System::setProperty) |
| 115 | + assertions() |
| 116 | + } finally { |
| 117 | + previousValues.forEach { (name, value) -> |
| 118 | + if (value == null) { |
| 119 | + System.clearProperty(name) |
| 120 | + } else { |
| 121 | + System.setProperty(name, value) |
| 122 | + } |
| 123 | + } |
| 124 | + } |
| 125 | + } |
| 126 | +} |
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