add LoggerAdapterTest

dokka-runners/dokka-gradle-plugin/src/test/kotlin/internal/LoggerAdapterTest.kt

@@ -0,0 +1,79 @@
+package internal
+
+import io.kotest.matchers.collections.shouldContainExactly
+import io.kotest.matchers.shouldBe
+import org.jetbrains.dokka.gradle.internal.LoggerAdapter
+import org.junit.jupiter.api.Test
+import org.slf4j.event.SubstituteLoggingEvent
+import org.slf4j.helpers.NOPLogger
+import org.slf4j.helpers.SubstituteLoggerFactory
+import kotlin.io.path.createTempFile
+import kotlin.io.path.readText
+
+class LoggerAdapterTest {
+
+    @Test
+    fun testLogger() {
+        val logFactory = SubstituteLoggerFactory()
+
+        val loggerAdapter = LoggerAdapter(
+            createTempFile().toFile(),
+            logFactory.getLogger("test"),
+            "LOG-TAG"
+        )
+
+        loggerAdapter.error("an error msg")
+        loggerAdapter.warn("a warn msg")
+        loggerAdapter.debug("a debug msg")
+        loggerAdapter.info("an info msg")
+        loggerAdapter.progress("a progress msg")
+
+        loggerAdapter.errorsCount shouldBe 1
+        loggerAdapter.warningsCount shouldBe 1
+
+        logFactory.eventQueue.map { it.render() }.shouldContainExactly(
+            "ERROR e: [LOG-TAG] an error msg",
+            "WARN w: [LOG-TAG] a warn msg",
+            "INFO [LOG-TAG] a debug msg",
+            "INFO [LOG-TAG] an info msg",
+            "INFO [LOG-TAG] a progress msg",
+        )
+    }
+
+    @Test
+    fun testLogFile() {
+        val logFile = createTempFile()
+
+        LoggerAdapter(
+            logFile.toFile(),
+            NOPLogger.NOP_LOGGER,
+            "LOG-TAG"
+        ).use { loggerAdapter ->
+            loggerAdapter.error("an error msg")
+            loggerAdapter.warn("a warn msg")
+            loggerAdapter.debug("a debug msg")
+            loggerAdapter.info("an info msg")
+            loggerAdapter.progress("a progress msg")
+
+            loggerAdapter.errorsCount shouldBe 1
+            loggerAdapter.warningsCount shouldBe 1
+        }
+
+        logFile.readText() shouldBe """
+            |[ERROR] an error msg
+            |[WARN] a warn msg
+            |[DEBUG] a debug msg
+            |[INFO] an info msg
+            |[PROGRESS] a progress msg
+            |
+        """.trimMargin()
+    }
+
+    companion object {
+        private fun SubstituteLoggingEvent.render(): String = buildString {
+            append("$level")
+            append(" ")
+            append(message)
+        }
+    }
+}