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| 1 | +// Copyright (c) 2026. Tony Robalik. |
| 2 | +// SPDX-License-Identifier: Apache-2.0 |
| 3 | +package com.autonomousapps.jvm |
| 4 | + |
| 5 | +import com.autonomousapps.jvm.projects.TypeUsageProject |
| 6 | +import com.autonomousapps.jvm.projects.TypeUsageWithFiltersProject |
| 7 | +import com.autonomousapps.jvm.projects.TypeUsageMultiModuleProject |
| 8 | + |
| 9 | +import static com.autonomousapps.utils.Runner.build |
| 10 | +import static com.google.common.truth.Truth.assertThat |
| 11 | + |
| 12 | +final class TypeUsageSpec extends AbstractJvmSpec { |
| 13 | + |
| 14 | + def "generates type usage report (#gradleVersion)"() { |
| 15 | + given: |
| 16 | + def project = new TypeUsageProject() |
| 17 | + gradleProject = project.gradleProject |
| 18 | +
|
| 19 | + when: |
| 20 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 21 | +
|
| 22 | + then: 'has correct summary' |
| 23 | + def usage = project.actualTypeUsage() |
| 24 | + assertThat(usage.projectPath).isEqualTo(':proj') |
| 25 | + assertThat(usage.summary.totalTypes).isGreaterThan(0) |
| 26 | + assertThat(usage.summary.totalFiles).isEqualTo(2) |
| 27 | + assertThat(usage.summary.internalTypes).isEqualTo(1) |
| 28 | +
|
| 29 | + and: 'tracks internal usage' |
| 30 | + assertThat(usage.internal).containsKey('com.example.Example') |
| 31 | + // Note: Internal class is not tracked because it's defined but never used |
| 32 | +
|
| 33 | + and: 'tracks library dependencies' |
| 34 | + assertThat(usage.libraryDependencies).isNotEmpty() |
| 35 | +
|
| 36 | + and: 'tracks commons-collections usage' |
| 37 | + assertThat(usage.libraryDependencies) |
| 38 | + .containsKey('org.apache.commons:commons-collections4') |
| 39 | + def commonsUsage = usage.libraryDependencies.get('org.apache.commons:commons-collections4') |
| 40 | + assertThat(commonsUsage).containsKey('org.apache.commons.collections4.bag.HashBag') |
| 41 | +
|
| 42 | + and: 'tracks kotlin stdlib usage' |
| 43 | + assert usage.libraryDependencies.keySet().any { it.startsWith('org.jetbrains.kotlin:kotlin-stdlib') } |
| 44 | +
|
| 45 | + where: |
| 46 | + gradleVersion << gradleVersions() |
| 47 | + } |
| 48 | +
|
| 49 | + def "excludes filtered types (#gradleVersion)"() { |
| 50 | + given: |
| 51 | + def project = new TypeUsageWithFiltersProject() |
| 52 | + gradleProject = project.gradleProject |
| 53 | +
|
| 54 | + when: |
| 55 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 56 | +
|
| 57 | + then: 'excluded packages are not present' |
| 58 | + def usage = project.actualTypeUsage() |
| 59 | + def allTypes = usage.libraryDependencies.values() |
| 60 | + .collectMany { it.keySet() } |
| 61 | +
|
| 62 | + assertThat(allTypes).doesNotContain('org.apache.commons.collections4.bag.HashBag') |
| 63 | +
|
| 64 | + and: 'excluded types are not present' |
| 65 | + assertThat(allTypes).doesNotContain('kotlin.Unit') |
| 66 | +
|
| 67 | + and: 'non-excluded types are still present' |
| 68 | + assertThat(usage.internal).containsKey('com.example.Example') |
| 69 | +
|
| 70 | + where: |
| 71 | + gradleVersion << gradleVersions() |
| 72 | + } |
| 73 | +
|
| 74 | + def "categorizes dependencies correctly (#gradleVersion)"() { |
| 75 | + given: |
| 76 | + def project = new TypeUsageProject() |
| 77 | + gradleProject = project.gradleProject |
| 78 | +
|
| 79 | + when: |
| 80 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 81 | +
|
| 82 | + then: 'internal types are in internal map' |
| 83 | + def usage = project.actualTypeUsage() |
| 84 | + assertThat(usage.internal).isNotEmpty() |
| 85 | + assertThat(usage.internal).containsKey('com.example.Example') |
| 86 | +
|
| 87 | + and: 'library types are in libraryDependencies map' |
| 88 | + assertThat(usage.libraryDependencies).isNotEmpty() |
| 89 | +
|
| 90 | + and: 'no project dependencies (single-project)' |
| 91 | + assertThat(usage.projectDependencies).isEmpty() |
| 92 | +
|
| 93 | + and: 'summary counts match' |
| 94 | + assertThat(usage.summary.internalTypes).isEqualTo(usage.internal.size()) |
| 95 | + assertThat(usage.summary.libraryDependencies).isEqualTo(usage.libraryDependencies.size()) |
| 96 | + assertThat(usage.summary.projectDependencies).isEqualTo(0) |
| 97 | +
|
| 98 | + where: |
| 99 | + gradleVersion << gradleVersions() |
| 100 | + } |
| 101 | +
|
| 102 | + def "tracks type usage across multiple modules (#gradleVersion)"() { |
| 103 | + given: |
| 104 | + def project = new TypeUsageMultiModuleProject() |
| 105 | + gradleProject = project.gradleProject |
| 106 | +
|
| 107 | + when: |
| 108 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 109 | +
|
| 110 | + then: 'app module tracks project dependencies' |
| 111 | + def appUsage = project.actualTypeUsageFor(':app') |
| 112 | + assertThat(appUsage.projectPath).isEqualTo(':app') |
| 113 | + assertThat(appUsage.projectDependencies).hasSize(2) |
| 114 | + assertThat(appUsage.projectDependencies).containsKey(':core') |
| 115 | + assertThat(appUsage.projectDependencies).containsKey(':utils') |
| 116 | +
|
| 117 | + and: 'app tracks types from core' |
| 118 | + def coreTypes = appUsage.projectDependencies[':core'] |
| 119 | + assertThat(coreTypes).containsKey('com.example.core.UserRepository') |
| 120 | + assertThat(coreTypes).containsKey('com.example.core.User') |
| 121 | +
|
| 122 | + and: 'app tracks types from utils' |
| 123 | + def utilsTypes = appUsage.projectDependencies[':utils'] |
| 124 | + assertThat(utilsTypes).containsKey('com.example.utils.Logger') |
| 125 | +
|
| 126 | + and: 'app tracks library dependencies' |
| 127 | + assertThat(appUsage.libraryDependencies).containsKey('org.apache.commons:commons-collections4') |
| 128 | +
|
| 129 | + and: 'app tracks internal types' |
| 130 | + assertThat(appUsage.internal).containsKey('com.example.app.MainActivity') |
| 131 | +
|
| 132 | + where: |
| 133 | + gradleVersion << gradleVersions() |
| 134 | + } |
| 135 | +
|
| 136 | + def "core module tracks its dependencies (#gradleVersion)"() { |
| 137 | + given: |
| 138 | + def project = new TypeUsageMultiModuleProject() |
| 139 | + gradleProject = project.gradleProject |
| 140 | +
|
| 141 | + when: |
| 142 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 143 | +
|
| 144 | + then: 'core tracks utils as project dependency' |
| 145 | + def coreUsage = project.actualTypeUsageFor(':core') |
| 146 | + assertThat(coreUsage.projectPath).isEqualTo(':core') |
| 147 | + assertThat(coreUsage.projectDependencies).hasSize(1) |
| 148 | + assertThat(coreUsage.projectDependencies).containsKey(':utils') |
| 149 | +
|
| 150 | + and: 'core tracks Logger from utils' |
| 151 | + def utilsTypes = coreUsage.projectDependencies[':utils'] |
| 152 | + assertThat(utilsTypes).containsKey('com.example.utils.Logger') |
| 153 | +
|
| 154 | + and: 'core tracks its own internal types' |
| 155 | + assertThat(coreUsage.internal).containsKey('com.example.core.User') |
| 156 | +
|
| 157 | + and: 'core has no library dependencies beyond kotlin stdlib' |
| 158 | + def nonKotlinLibs = coreUsage.libraryDependencies.keySet().findAll { |
| 159 | + !it.startsWith('org.jetbrains') |
| 160 | + } |
| 161 | + assertThat(nonKotlinLibs).isEmpty() |
| 162 | +
|
| 163 | + where: |
| 164 | + gradleVersion << gradleVersions() |
| 165 | + } |
| 166 | +
|
| 167 | + def "utils module has only library dependencies (#gradleVersion)"() { |
| 168 | + given: |
| 169 | + def project = new TypeUsageMultiModuleProject() |
| 170 | + gradleProject = project.gradleProject |
| 171 | +
|
| 172 | + when: |
| 173 | + build(gradleVersion, gradleProject.rootDir, 'computeTypeUsageMain') |
| 174 | +
|
| 175 | + then: 'utils has no project dependencies' |
| 176 | + def utilsUsage = project.actualTypeUsageFor(':utils') |
| 177 | + assertThat(utilsUsage.projectPath).isEqualTo(':utils') |
| 178 | + assertThat(utilsUsage.projectDependencies).isEmpty() |
| 179 | +
|
| 180 | + and: 'utils tracks commons-io' |
| 181 | + assertThat(utilsUsage.libraryDependencies).containsKey('commons-io:commons-io') |
| 182 | + def commonsIoTypes = utilsUsage.libraryDependencies['commons-io:commons-io'] |
| 183 | + assertThat(commonsIoTypes).containsKey('org.apache.commons.io.FileUtils') |
| 184 | +
|
| 185 | + and: 'utils tracks internal Logger type' |
| 186 | + assertThat(utilsUsage.internal).containsKey('com.example.utils.Logger') |
| 187 | +
|
| 188 | + and: 'summary counts are correct' |
| 189 | + assertThat(utilsUsage.summary.projectDependencies).isEqualTo(0) |
| 190 | + assertThat(utilsUsage.summary.libraryDependencies).isGreaterThan(0) |
| 191 | + assertThat(utilsUsage.summary.internalTypes).isEqualTo(utilsUsage.internal.size()) |
| 192 | +
|
| 193 | + where: |
| 194 | + gradleVersion << gradleVersions() |
| 195 | + } |
| 196 | +} |
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