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AnalyzerSpec.kt
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AnalyzerSpec.kt
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package io.gitlab.arturbosch.detekt.core
import io.github.detekt.test.utils.compileForTest
import io.gitlab.arturbosch.detekt.api.CodeSmell
import io.gitlab.arturbosch.detekt.api.Config
import io.gitlab.arturbosch.detekt.api.Debt
import io.gitlab.arturbosch.detekt.api.Entity
import io.gitlab.arturbosch.detekt.api.Issue
import io.gitlab.arturbosch.detekt.api.Rule
import io.gitlab.arturbosch.detekt.api.RuleSet
import io.gitlab.arturbosch.detekt.api.RuleSetProvider
import io.gitlab.arturbosch.detekt.api.Severity
import io.gitlab.arturbosch.detekt.test.yamlConfig
import org.assertj.core.api.Assertions.assertThat
import org.assertj.core.api.Assertions.assertThatThrownBy
import org.jetbrains.kotlin.psi.KtFile
import org.junit.jupiter.api.Nested
import org.junit.jupiter.api.Test
import java.util.concurrent.CompletionException
class AnalyzerSpec {
@Nested
inner class `exceptions during analyze()` {
@Test
fun `throw error explicitly when config has wrong value type in config`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(testFile, yamlConfig("configs/config-value-type-wrong.yml"))
val analyzer = Analyzer(settings, listOf(StyleRuleSetProvider()), emptyList())
assertThatThrownBy {
settings.use { analyzer.run(listOf(compileForTest(testFile))) }
}.isInstanceOf(IllegalStateException::class.java)
}
@Test
fun `throw error explicitly in parallel when config has wrong value in config`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(
inputPath = testFile,
config = yamlConfig("configs/config-value-type-wrong.yml"),
spec = createNullLoggingSpec {
execution {
parallelParsing = true
parallelAnalysis = true
}
}
)
val analyzer = Analyzer(settings, listOf(StyleRuleSetProvider()), emptyList())
assertThatThrownBy { settings.use { analyzer.run(listOf(compileForTest(testFile))) } }
.isInstanceOf(CompletionException::class.java)
.hasCauseInstanceOf(IllegalStateException::class.java)
}
}
@Nested
inner class `analyze successfully when config has correct value type in config` {
@Test
fun `no findings`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(testFile, yamlConfig("configs/config-value-type-correct.yml"))
val analyzer = Analyzer(settings, listOf(StyleRuleSetProvider()), emptyList())
assertThat(settings.use { analyzer.run(listOf(compileForTest(testFile))) }).isEmpty()
}
@Test
fun `with findings`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(testFile, yamlConfig("configs/config-value-type-correct.yml"))
val analyzer = Analyzer(settings, listOf(StyleRuleSetProvider(18)), emptyList())
assertThat(settings.use { analyzer.run(listOf(compileForTest(testFile))) }).hasSize(1)
}
@Test
fun `with findings but ignored`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(
testFile,
yamlConfig("configs/config-value-type-correct-ignore-annotated.yml")
)
val analyzer = Analyzer(settings, listOf(StyleRuleSetProvider(18)), emptyList())
assertThat(settings.use { analyzer.run(listOf(compileForTest(testFile))) }).isEmpty()
}
@Test
fun `with faulty rule`() {
val testFile = path.resolve("Test.kt")
val settings = createProcessingSettings(
testFile,
yamlConfig("configs/config-value-type-correct.yml")
)
var analyzer = Analyzer(settings, listOf(FaultyRuleSetProvider(false)), emptyList())
assertThatThrownBy { settings.use { analyzer.run(listOf(compileForTest(testFile))) } }
.hasCauseInstanceOf(IllegalStateException::class.java)
.hasMessageContaining(FaultyRule::class.java.name)
analyzer = Analyzer(settings, listOf(FaultyRuleSetProvider(true)), emptyList())
assertThatThrownBy { settings.use { analyzer.run(listOf(compileForTest(testFile))) } }
.hasCauseInstanceOf(IllegalStateException::class.java)
.hasMessageContaining("Unknown.")
}
}
}
private class StyleRuleSetProvider(private val threshold: Int? = null) : RuleSetProvider {
override val ruleSetId: String = "style"
override fun instance(config: Config) = RuleSet(ruleSetId, listOf(MaxLineLength(config, threshold)))
}
private class MaxLineLength(config: Config, threshold: Int?) : Rule(config) {
override val issue = Issue(this::class.java.simpleName, Severity.Style, "", Debt.FIVE_MINS)
private val lengthThreshold: Int = threshold ?: valueOrDefault("maxLineLength", 100)
override fun visitKtFile(file: KtFile) {
super.visitKtFile(file)
for (line in file.text.lineSequence()) {
if (line.length > lengthThreshold) {
report(CodeSmell(issue, Entity.atPackageOrFirstDecl(file), issue.description))
}
}
}
}
private class FaultyRuleSetProvider(private val isStackTraceEmpty: Boolean) : RuleSetProvider {
override val ruleSetId: String = "style"
override fun instance(config: Config) = RuleSet(ruleSetId, listOf(FaultyRule(config, isStackTraceEmpty)))
}
private class FaultyRule(config: Config, private val isStackTraceEmpty: Boolean) : Rule(config) {
override val issue = Issue(this::class.java.simpleName, Severity.Style, "", Debt.FIVE_MINS)
override fun visitKtFile(file: KtFile) {
throw object : IllegalStateException("Deliberately triggered error.") {
init {
if (isStackTraceEmpty) {
stackTrace = emptyArray()
}
}
}
}
}