Logging in CLI (#1976)

1 files changed, 44 insertions, 0 deletions

diff --git a/plugins/base/src/test/kotlin/basic/LoggerTest.kt b/plugins/base/src/test/kotlin/basic/LoggerTest.kt
new file mode 100644
index 00000000..92ffb539
--- /dev/null
+++ b/plugins/base/src/test/kotlin/basic/LoggerTest.kt
@@ -0,0 +1,44 @@
+package basic
+
+import org.jetbrains.dokka.utilities.DokkaConsoleLogger
+import org.jetbrains.dokka.utilities.LoggingLevel
+import org.jetbrains.dokka.utilities.MessageEmitter
+import org.junit.jupiter.api.Test
+import kotlin.test.assertFalse
+import kotlin.test.assertTrue
+
+class LoggerTest {
+    class AccumulatingEmitter : MessageEmitter {
+        val messages: MutableList<String> = mutableListOf()
+        override fun invoke(message: String) {
+            messages.add(message)
+        }
+    }
+
+    @Test
+    fun `should display info messages if logging is info`(){
+        val emitter = AccumulatingEmitter()
+        val logger = DokkaConsoleLogger(LoggingLevel.INFO, emitter)
+
+        logger.debug("Debug!")
+        logger.info("Info!")
+
+        assertTrue(emitter.messages.size > 0)
+        assertTrue(emitter.messages.any { it == "Info!" })
+        assertFalse(emitter.messages.any { it == "Debug!" })
+    }
+
+    @Test
+    fun `should not display info messages if logging is warn`(){
+        val emitter = AccumulatingEmitter()
+        val logger = DokkaConsoleLogger(LoggingLevel.WARN, emitter)
+
+        logger.warn("Warning!")
+        logger.info("Info!")
+
+
+        assertTrue(emitter.messages.size > 0)
+        assertFalse(emitter.messages.any { it.contains("Info!") })
+        assertTrue(emitter.messages.any { it.contains("Warning!") })
+    }
+}
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