Disabled autoCorrect for subconfigs too (#110)

src/main/kotlin/io/gitlab/arturbosch/detekt/sonar/foundation/NoAutoCorrectConfig.kt

@@ -8,7 +8,7 @@ import io.gitlab.arturbosch.detekt.api.Config
 @Suppress("UNCHECKED_CAST")
 class NoAutoCorrectConfig(private val config: Config) : Config {
 
-    override fun subConfig(key: String): Config = config.subConfig(key)
+    override fun subConfig(key: String): Config = NoAutoCorrectConfig(config.subConfig(key))
 
     override fun <T : Any> valueOrDefault(key: String, default: T): T {
         if ("autoCorrect" == key) {

src/test/kotlin/io/gitlab/arturbosch/detekt/sonar/foundation/NoAutoCorrectConfigTest.kt

@@ -0,0 +1,64 @@
+package io.gitlab.arturbosch.detekt.sonar.foundation
+
+import io.gitlab.arturbosch.detekt.api.Config
+import io.gitlab.arturbosch.detekt.api.YamlConfig
+import io.mockk.every
+import io.mockk.mockk
+import org.spekframework.spek2.Spek
+import org.spekframework.spek2.style.specification.describe
+import java.io.*
+import java.net.URL
+import org.assertj.core.api.Assertions.assertThat
+
+class NoAutoCorrectConfigTest : Spek({
+    describe("a configuration") {
+
+        context("with autoCorrect on 1st level") {
+            val config = NoAutoCorrectConfig(
+                    createConfig("""
+                        autoCorrect: true
+                    """.trimIndent())
+            )
+
+            it("should be false") {
+                assertThat(config.valueOrDefault("autoCorrect", true)).isEqualTo(false)
+            }
+        }
+
+        context("with autoCorrect on 2d level") {
+            val config = NoAutoCorrectConfig(
+                    createConfig("""
+                        secondLevel:
+                          autoCorrect: true
+                    """.trimIndent())
+            )
+
+            it("should be false") {
+                val secondLevelConfig = config.subConfig("secondLevel")
+                assertThat(secondLevelConfig.valueOrDefault("autoCorrect", true)).isEqualTo(false)
+            }
+        }
+
+        context("with autoCorrect on 3rd level") {
+            val config = NoAutoCorrectConfig(
+                    createConfig("""
+                        secondLevel:
+                          thirdLevel:
+                            autoCorrect: true
+                    """.trimIndent())
+            )
+
+            it("should be false") {
+                val thirdLevelConfig = config.subConfig("secondLevel").subConfig("thirdLevel")
+                assertThat(thirdLevelConfig.valueOrDefault("autoCorrect", true)).isEqualTo(false)
+            }
+        }
+    }
+})
+
+private fun createConfig(yamlInput: String): Config {
+    val yamlInputStream = ByteArrayInputStream(yamlInput.toByteArray(Charsets.UTF_8))
+    val url = mockk<URL>()
+    every { url.openStream() } returns yamlInputStream
+    return YamlConfig.loadResource(url)
+}