JUnit 5Duplication
Intro
- For duplication, we look at places in code where there are six or more lines of code that are exactly the same.
- Before duplication is calculated, the code is cleaned to remove empty lines, comments, and frequently duplicated constructs such as imports.
- You should aim at having as little as possible (<5%) of duplicated code as high-level of duplication can lead to maintenance difficulties, poor factoring, and logical contradictions.
Duplication Overall
- 4% duplication:
- 18,436 cleaned lines of cleaned code (without empty lines, comments, and frequently duplicated constructs such as imports)
- 779 duplicated lines
- 32 duplicates
Duplication per Extension
Duplication per Component (primary)
Duplication Between Components (50+ lines)
Show more details on duplication between components...
Longest Duplicates
The list of 20 longest duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 60 | x 2 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptor | FilePosition.javaFilePosition.java | 38:179 (98%)33:174 (98%) | view |
| 20 | x 2 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptor | MethodSelector.javaMethodSource.java | 149:177 (25%)191:219 (22%) | view |
| 18 | x 2 | junit-platform-testkit/s...platform/testkit/enginejunit-jupiter-api/src/ma...a/org/junit/jupiter/api | Assertions.javaAssertAll.java | 37:58 (51%)61:82 (52%) | view |
| 15 | x 2 | junit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | MethodExtensionContext.javaTestTemplateExtensionContext.java | 42:64 (48%)38:60 (53%) | view |
| 13 | x 2 | junit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | DynamicExtensionContext.javaJupiterEngineExtensionContext.java | 42:62 (52%)45:65 (52%) | view |
| 12 | x 2 | junit-platform-engine/sr...g/junit/platform/enginejunit-platform-launcher/...junit/platform/launcher | SelectorResolutionResult.javaEngineDiscoveryResult.java | 92:121 (40%)77:106 (48%) | view |
| 12 | x 2 | junit-platform-commons/s....junit.platform.commonsjunit-platform-commons/s....junit.platform.commons | module-info.javamodule-info.java | 25:36 (35%)39:50 (35%) | view |
| 11 | x 3 | junit-platform-engine/sr...g/junit/platform/enginejunit-platform-engine/sr...g/junit/platform/enginejunit-platform-launcher/...junit/platform/launcher | SelectorResolutionResult.javaTestExecutionResult.javaEngineDiscoveryResult.java | 93:121 (36%)100:128 (39%)78:106 (44%) | view |
| 10 | x 2 | junit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | TestTemplateTestDescriptor.javaTestFactoryTestDescriptor.java | 55:74 (14%)70:89 (11%) | view |
| 10 | x 2 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptor | MethodSelector.javaMethodSource.java | 204:216 (12%)238:250 (11%) | view |
| 9 | x 2 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discovery | ClasspathResourceSelector.javaFileSelector.java | 68:82 (30%)86:100 (29%) | view |
| 9 | x 2 | junit-platform-launcher/...her/listeners/discoveryjunit-platform-launcher/...her/listeners/discovery | LoggingLauncherDiscoveryListener.javaAbortOnFailureLauncherDiscoveryListen... | 80:92 (20%)49:61 (40%) | view |
| 8 | x 6 | junit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/api | AssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.java | 170:180 (3%)186:196 (3%)202:212 (3%)218:228 (3%)234:244 (3%)250:260 (3%) | view |
| 8 | x 3 | junit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...gine/support/descriptor | ClassSource.javaClasspathResourceSource.javaFileSource.java | 147:157 (15%)141:151 (17%)99:109 (18%) | view |
| 7 | x 10 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discovery | ClasspathResourceSelector.javaClassSelector.javaClasspathRootSelector.javaDirectorySelector.javaPackageSelector.javaMethodSelector.javaUniqueIdSelector.javaUriSelector.javaModuleSelector.javaFileSelector.java | 75:82 (23%)84:91 (21%)58:65 (30%)83:90 (25%)49:56 (30%)185:192 (8%)50:57 (30%)53:60 (30%)49:56 (30%)93:100 (22%) | view |
| 7 | x 2 | junit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | DynamicExtensionContext.javaJupiterEngineExtensionContext.java | 30:40 (28%)33:43 (28%) | view |
| 7 | x 2 | junit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/api | AssertArrayEquals.javaAssertArrayEquals.java | 282:291 (3%)315:324 (3%) | view |
| 7 | x 2 | junit-jupiter-params/src...upiter/params/converterjunit-jupiter-params/src...upiter/params/converter | DefaultArgumentConverter.javaDefaultArgumentConverter.java | 210:220 (5%)248:258 (5%) | view |
| 6 | x 27 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-jupiter-api/src/ma...t/jupiter/api/extensionjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...ne/support/hierarchical... | FilePosition.javaClasspathResourceSource.javaNestedMethodSelector.javaPackageSelector.javaClasspathResourceSelector.javaNestedClassSelector.javaExtensionContext.javaClasspathRootSelector.javaMethodSource.javaExclusiveResource.java... | 156:162 (9%)145:151 (13%)161:167 (11%)50:56 (26%)76:82 (20%)101:107 (16%)659:665 (7%)59:65 (26%)224:230 (6%)82:88 (16%)... | view |
| 6 | x 3 | junit-platform-engine/sr...ne/support/hierarchicaljunit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | DemoHierarchicalContainerDescriptor.javaTestFactoryTestDescriptor.javaTestTemplateTestDescriptor.java | 40:47 (21%)77:84 (6%)62:69 (8%) | view |
Most Frequent Duplicates
The list of 8 most frequently found duplicates.
| Size | # | Folders | Files | Lines | Code |
|---|---|---|---|---|---|
| 6 | x 27 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-jupiter-api/src/ma...t/jupiter/api/extensionjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...ne/support/hierarchical... | FilePosition.javaClasspathResourceSource.javaNestedMethodSelector.javaPackageSelector.javaClasspathResourceSelector.javaNestedClassSelector.javaExtensionContext.javaClasspathRootSelector.javaMethodSource.javaExclusiveResource.java... | 156:162 (9%)145:151 (13%)161:167 (11%)50:56 (26%)76:82 (20%)101:107 (16%)659:665 (7%)59:65 (26%)224:230 (6%)82:88 (16%)... | view |
| 7 | x 10 | junit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discoveryjunit-platform-engine/sr...atform/engine/discovery | ClasspathResourceSelector.javaClassSelector.javaClasspathRootSelector.javaDirectorySelector.javaPackageSelector.javaMethodSelector.javaUniqueIdSelector.javaUriSelector.javaModuleSelector.javaFileSelector.java | 75:82 (23%)84:91 (21%)58:65 (30%)83:90 (25%)49:56 (30%)185:192 (8%)50:57 (30%)53:60 (30%)49:56 (30%)93:100 (22%) | view |
| 8 | x 6 | junit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/api | AssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.java | 170:180 (3%)186:196 (3%)202:212 (3%)218:228 (3%)234:244 (3%)250:260 (3%) | view |
| 6 | x 3 | junit-platform-engine/sr...ne/support/hierarchicaljunit-jupiter-engine/src...piter/engine/descriptorjunit-jupiter-engine/src...piter/engine/descriptor | DemoHierarchicalContainerDescriptor.javaTestFactoryTestDescriptor.javaTestTemplateTestDescriptor.java | 40:47 (21%)77:84 (6%)62:69 (8%) | view |
| 6 | x 3 | documentation/src/main/java/example/domainjunit-platform-launcher/...her/listeners/discoveryjunit-platform-launcher/...her/listeners/discovery | Person.javaAbortOnFailureLauncherDiscoveryListen...LoggingLauncherDiscoveryListener.java | 62:68 (11%)49:55 (27%)80:86 (13%) | view |
| 11 | x 3 | junit-platform-engine/sr...g/junit/platform/enginejunit-platform-engine/sr...g/junit/platform/enginejunit-platform-launcher/...junit/platform/launcher | SelectorResolutionResult.javaTestExecutionResult.javaEngineDiscoveryResult.java | 93:121 (36%)100:128 (39%)78:106 (44%) | view |
| 6 | x 3 | junit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/apijunit-jupiter-api/src/ma...a/org/junit/jupiter/api | AssertArrayEquals.javaAssertArrayEquals.javaAssertArrayEquals.java | 266:274 (2%)299:307 (2%)332:340 (2%) | view |
| 8 | x 3 | junit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...gine/support/descriptorjunit-platform-engine/sr...gine/support/descriptor | ClassSource.javaClasspathResourceSource.javaFileSource.java | 147:157 (15%)141:151 (17%)99:109 (18%) | view |