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feat(scanoss): Add snippet choice parsing for scan results
Implement snippet choice processing functionality. It handles findings according to two different scenarios: - Original findings that should be included - Non-relevant findings that should be removed The implementation converts ORT's SnippetChoices into SCANOSS-specific rule types Signed-off-by: Agustin Isasmendi <[email protected]>
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‎plugins/scanners/scanoss/src/main/kotlin/ScanOss.kt‎

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@@ -21,6 +21,11 @@ package org.ossreviewtoolkit.plugins.scanners.scanoss
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import com.scanoss.Scanner
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import com.scanoss.filters.FilterConfig
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import com.scanoss.settings.Bom
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import com.scanoss.settings.RemoveRule
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import com.scanoss.settings.ReplaceRule
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import com.scanoss.settings.Rule
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import com.scanoss.settings.ScanossSettings
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import com.scanoss.utils.JsonUtils
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import com.scanoss.utils.PackageDetails
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@@ -30,6 +35,9 @@ import java.time.Instant
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import org.apache.logging.log4j.kotlin.logger
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import org.ossreviewtoolkit.model.ScanSummary
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import org.ossreviewtoolkit.model.config.SnippetChoices
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import org.ossreviewtoolkit.model.config.snippet.SnippetChoice
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import org.ossreviewtoolkit.model.config.snippet.SnippetChoiceReason
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import org.ossreviewtoolkit.plugins.api.OrtPlugin
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import org.ossreviewtoolkit.plugins.api.PluginDescriptor
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import org.ossreviewtoolkit.scanner.PathScannerWrapper
@@ -89,6 +97,7 @@ class ScanOss(
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// Build the scanner at function level in case any path-specific settings or filters are needed later
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val scanoss = scanossBuilder
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.settings(buildSettingsFromORTContext(context))
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.filterConfig(filterConfig)
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.build()
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@@ -101,4 +110,86 @@ class ScanOss(
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val endTime = Instant.now()
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return generateSummary(startTime, endTime, results)
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}
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data class ProcessedRules(
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val includeRules: List<Rule>,
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val ignoreRules: List<Rule>,
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val replaceRules: List<ReplaceRule>,
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val removeRules: List<RemoveRule>
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)
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private fun buildSettingsFromORTContext(context: ScanContext): ScanossSettings {
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val rules = processSnippetChoices(context.snippetChoices)
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val bom = Bom.builder()
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.ignore(rules.ignoreRules)
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.include(rules.includeRules)
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.replace(rules.replaceRules)
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.remove(rules.removeRules)
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.build()
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return ScanossSettings.builder().bom(bom).build()
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}
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fun processSnippetChoices(snippetChoices: List<SnippetChoices>): ProcessedRules {
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val includeRules = mutableListOf<Rule>()
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val ignoreRules = mutableListOf<Rule>()
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val replaceRules = mutableListOf<ReplaceRule>()
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val removeRules = mutableListOf<RemoveRule>()
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snippetChoices.forEach { snippetChoice ->
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snippetChoice.choices.forEach { choice ->
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when (choice.choice.reason) {
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SnippetChoiceReason.ORIGINAL_FINDING -> {
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processOriginalFinding(
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choice = choice,
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includeRules = includeRules
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)
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}
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SnippetChoiceReason.NO_RELEVANT_FINDING -> {
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processNoRelevantFinding(
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choice = choice,
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removeRules = removeRules
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)
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}
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SnippetChoiceReason.OTHER -> {
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processOtherReason(choice)
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}
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}
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}
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}
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return ProcessedRules(includeRules, ignoreRules, replaceRules, removeRules)
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}
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private fun processOriginalFinding(choice: SnippetChoice, includeRules: MutableList<Rule>) {
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includeRules.add(
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Rule.builder()
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.purl(choice.choice.purl)
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.path(choice.given.sourceLocation.path)
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.build()
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)
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}
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private fun processNoRelevantFinding(choice: SnippetChoice, removeRules: MutableList<RemoveRule>) {
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val builder = RemoveRule.builder()
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builder.path(choice.given.sourceLocation.path)
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// Set line range only if both start and end lines are positive numbers
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// If either line is < 0, no line range is set and the rule will apply to the entire file
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if (choice.given.sourceLocation.startLine > 0 && choice.given.sourceLocation.endLine > 0) {
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builder.startLine(choice.given.sourceLocation.startLine)
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builder.endLine(choice.given.sourceLocation.endLine)
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}
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val rule = builder.build()
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removeRules.add(rule)
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}
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private fun processOtherReason(snippetChoice: SnippetChoice) {
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logger.info {
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"Encountered OTHER reason for snippet choice in file ${snippetChoice.given.sourceLocation.path}"
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}
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}
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}

‎plugins/scanners/scanoss/src/test/kotlin/ScanOssTest.kt‎

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@@ -0,0 +1,186 @@
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/*
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* Copyright (C) 2025 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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* License-Filename: LICENSE
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*/
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package org.ossreviewtoolkit.plugins.scanners.scanoss
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import io.kotest.core.spec.style.WordSpec
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import io.kotest.matchers.collections.shouldBeEmpty
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import io.kotest.matchers.shouldBe
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import org.ossreviewtoolkit.model.TextLocation
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import org.ossreviewtoolkit.model.config.SnippetChoices
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import org.ossreviewtoolkit.model.config.snippet.Choice
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import org.ossreviewtoolkit.model.config.snippet.Given
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import org.ossreviewtoolkit.model.config.snippet.Provenance
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import org.ossreviewtoolkit.model.config.snippet.SnippetChoice
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import org.ossreviewtoolkit.model.config.snippet.SnippetChoiceReason
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/** Sample files in the results. **/
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private const val FILE_1 = "a.java"
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private const val FILE_2 = "b.java"
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/** A sample purl in the results. **/
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private const val PURL_1 = "pkg:github/fakeuser/[email protected]"
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class ScanOssTest : WordSpec({
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"processSnippetChoices" should {
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"create empty rules when no snippet choices exist" {
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val scanoss = createScanOss(createScanOssConfig())
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val emptySnippetChoices: List<SnippetChoices> = listOf()
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val rules = scanoss.processSnippetChoices(emptySnippetChoices)
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rules.ignoreRules.shouldBeEmpty()
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rules.removeRules.shouldBeEmpty()
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rules.includeRules.shouldBeEmpty()
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rules.replaceRules.shouldBeEmpty()
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}
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"create an include rule for snippet choices with ORIGINAL finding" {
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val vcsInfo = createVcsInfo()
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val scanoss = createScanOss(createScanOssConfig())
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val location = TextLocation(FILE_1, 10, 20)
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val snippetChoices = createSnippetChoices(
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vcsInfo.url,
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createSnippetChoice(
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location,
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PURL_1,
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"This is an original finding"
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)
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)
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val rules = scanoss.processSnippetChoices(snippetChoices)
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rules.includeRules.size shouldBe 1
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rules.includeRules[0].purl shouldBe PURL_1
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rules.includeRules[0].path shouldBe FILE_1
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rules.removeRules.shouldBeEmpty()
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rules.ignoreRules.shouldBeEmpty()
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rules.replaceRules.shouldBeEmpty()
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}
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"create a remove rule for snippet choices with NOT_FINDING reason" {
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val vcsInfo = createVcsInfo()
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val scanoss = createScanOss(createScanOssConfig())
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val location = TextLocation(FILE_2, 15, 30)
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val snippetChoices = createSnippetChoices(
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vcsInfo.url,
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createSnippetChoice(
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location,
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null, // null PURL for NOT_FINDING
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"This is not a relevant finding"
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)
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)
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val rules = scanoss.processSnippetChoices(snippetChoices)
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rules.removeRules.size shouldBe 1
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rules.removeRules[0].path shouldBe FILE_2
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rules.removeRules[0].startLine shouldBe 15
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rules.removeRules[0].endLine shouldBe 30
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rules.includeRules.shouldBeEmpty()
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rules.ignoreRules.shouldBeEmpty()
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rules.replaceRules.shouldBeEmpty()
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}
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"handle multiple snippet choices with different reasons correctly" {
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val vcsInfo = createVcsInfo()
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val scanoss = createScanOss(createScanOssConfig())
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val location1 = TextLocation(FILE_1, 10, 20)
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val location2 = TextLocation(FILE_2, 15, 30)
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val snippetChoices = createSnippetChoices(
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vcsInfo.url,
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createSnippetChoice(
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location1,
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PURL_1,
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"This is an original finding"
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),
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createSnippetChoice(
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location2,
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null,
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"This is not a relevant finding"
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)
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)
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val rules = scanoss.processSnippetChoices(snippetChoices)
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rules.includeRules.size shouldBe 1
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rules.includeRules[0].purl shouldBe PURL_1
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rules.includeRules[0].path shouldBe FILE_1
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rules.removeRules.size shouldBe 1
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rules.removeRules[0].path shouldBe FILE_2
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rules.removeRules[0].startLine shouldBe 15
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rules.removeRules[0].endLine shouldBe 30
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rules.ignoreRules.shouldBeEmpty()
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rules.replaceRules.shouldBeEmpty()
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}
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"should create a remove rule without line ranges when snippet choice has UNKNOWN_LINE (-1) values" {
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val vcsInfo = createVcsInfo()
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val scanoss = createScanOss(createScanOssConfig())
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// Create a TextLocation with -1 for start and end lines
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val location = TextLocation(FILE_2, TextLocation.UNKNOWN_LINE, TextLocation.UNKNOWN_LINE)
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val snippetChoices = createSnippetChoices(
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vcsInfo.url,
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createSnippetChoice(
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location,
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null, // null PURL for NOT_FINDING
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"This is a not relevant finding with no line ranges"
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)
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)
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val rules = scanoss.processSnippetChoices(snippetChoices)
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rules.removeRules.size shouldBe 1
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rules.removeRules[0].path shouldBe FILE_2
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rules.removeRules[0].startLine shouldBe null
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rules.removeRules[0].endLine shouldBe null
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rules.includeRules.shouldBeEmpty()
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rules.ignoreRules.shouldBeEmpty()
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rules.replaceRules.shouldBeEmpty()
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}
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}
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})
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private fun createSnippetChoices(provenanceUrl: String, vararg snippetChoices: SnippetChoice) =
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listOf(SnippetChoices(Provenance(provenanceUrl), snippetChoices.toList()))
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private fun createSnippetChoice(location: TextLocation, purl: String? = null, comment: String) =
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SnippetChoice(
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Given(
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location
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),
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Choice(
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purl,
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if (purl == null) SnippetChoiceReason.NO_RELEVANT_FINDING else SnippetChoiceReason.ORIGINAL_FINDING,
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comment
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)
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)

‎plugins/scanners/scanoss/src/test/kotlin/TestUtils.kt‎

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/*
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* Copyright (C) 2025 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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* License-Filename: LICENSE
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*/
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package org.ossreviewtoolkit.plugins.scanners.scanoss
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import com.scanoss.rest.ScanApi
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import org.ossreviewtoolkit.model.VcsInfo
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import org.ossreviewtoolkit.model.VcsType
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import org.ossreviewtoolkit.plugins.api.Secret
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/** A test project name. */
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internal const val PROJECT = "scanoss-test-project"
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/** A (resolved) test revision. */
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private const val REVISION = "0123456789012345678901234567890123456789"
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/**
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* Create a new [ScanOss] instance with the specified [config].
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*/
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internal fun createScanOss(config: ScanOssConfig): ScanOss = ScanOss(config = config)
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/**
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* Create a standard [ScanOssConfig] whose properties can be partly specified.
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*/
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internal fun createScanOssConfig(
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apiUrl: String = ScanApi.DEFAULT_BASE_URL,
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apiKey: Secret = Secret(""),
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regScannerName: String? = null,
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minVersion: String? = null,
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maxVersion: String? = null,
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readFromStorage: Boolean = true,
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writeToStorage: Boolean = true
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): ScanOssConfig {
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return ScanOssConfig(
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apiUrl = apiUrl,
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apiKey = apiKey,
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regScannerName = regScannerName,
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minVersion = minVersion,
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maxVersion = maxVersion,
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readFromStorage = readFromStorage,
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writeToStorage = writeToStorage
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)
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}
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/**
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* Create a [VcsInfo] object for a project with the given [name][projectName] and the optional parameters for [type],
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* [path], and [revision].
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*/
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internal fun createVcsInfo(
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projectName: String = PROJECT,
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type: VcsType = VcsType.GIT,
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path: String = "",
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revision: String = REVISION
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): VcsInfo = VcsInfo(type = type, path = path, revision = revision, url = "https://github.com/test/$projectName.git")

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