Initial Commit

test/logger/appenders/ConsoleAppender.ts

@@ -0,0 +1,31 @@
+import IAppender from './IAppender';
+import {LoggingLevel} from '../LoggingLevel';
+import assertUnreachable from '../../../lang/assertUnreachable';
+
+export class ConsoleAppender implements IAppender {
+  append(timestamp: string, level: LoggingLevel, category: string, message: string): void {
+    switch (level) {
+      case LoggingLevel.Debug:
+      case LoggingLevel.Info:
+      case LoggingLevel.Warning:
+      case LoggingLevel.Trace:
+        console.info(`${timestamp} [${category}] ${message}`);
+        break;
+
+    case LoggingLevel.Error:
+        console.error(`${timestamp} [${category}] ${message}`);
+        break;
+
+    case LoggingLevel.Fatal:
+        console.error(`${timestamp} [${category}] ${message}`);
+        break;
+
+    case LoggingLevel.Off:
+    case LoggingLevel.All:
+        break;
+
+    default:
+        assertUnreachable(level);
+    }
+  }
+}

test/logger/appenders/IAppender.ts

@@ -0,0 +1,7 @@
+import {LoggingLevel} from '../LoggingLevel';
+
+interface IAppender {
+  append(timestamp: string, level: LoggingLevel, category: string, message: string): void;
+}
+
+export default IAppender;