fix(log): output objects and json correctly to console

log/handlers/console.ts

@@ -32,30 +32,32 @@ export class ConsoleHandler extends LogHandler {
 
 	override handle(
 		{ loggerName, record }: LogHandlerOptions,
-	): string {
+		// deno-lint-ignore no-explicit-any
+	): any {
 		const formatted = this.format({ loggerName, record });
 
 		if (getLevelValue(record.level) <= getLevelValue(LogLevel.ERROR)) {
-			console.error(formatted);
+			console.error(...formatted);
 		} else if (record.level === LogLevel.WARNING) {
-			console.warn(formatted);
+			console.warn(...formatted);
 		} else if (record.level === LogLevel.DEBUG) {
-			console.debug(formatted);
+			console.debug(...formatted);
 		} else {
-			console.log(formatted);
+			console.log(...formatted);
 		}
 
 		return formatted;
 	}
 
-	override format({ loggerName, record }: LogHandlerOptions): string {
+	// deno-lint-ignore no-explicit-any
+	override format({ loggerName, record }: LogHandlerOptions): any {
 		if (this.#json) {
-			return JSON.stringify({
+			return [JSON.stringify({
 				...(this.#name && { name: loggerName }),
 				...(this.#timestamp && { timestamp: record.timestamp }),
 				level: record.level,
 				message: record.message,
-			});
+			})];
 		}
 
 		const output = [];
@@ -78,9 +80,9 @@ export class ConsoleHandler extends LogHandler {
 
 		const level = this.#formatLevel(record.level);
 
-		output.push(level, record.message);
+		output.push(level, ...record.message);
 
-		return output.join(" ");
+		return output;
 	}
 
 	#formatLevel(level: LogLevel): string {

log/handlers/console_test.fixture.json.ts

@@ -9,4 +9,4 @@ const logger = new Logger("json", {
 	],
 });
 
-logger.debug("hello", "there");
+logger.debug("hello", { key: "value" }, [1, 2, 3], null, true);

log/handlers/console_test.fixture.object.ts

@@ -0,0 +1,12 @@
+import { Logger } from "../logger.ts";
+import { ConsoleHandler } from "./console.ts";
+
+const logger = new Logger("object", {
+	handlers: [
+		new ConsoleHandler({
+			color: false,
+		}),
+	],
+});
+
+logger.debug({ key: "value" });

log/handlers/console_test.ts

@@ -34,11 +34,16 @@ Deno.test("ConsoleHandler prints the timestamp for a log record", async () => {
 	);
 });
 
+Deno.test("ConsoleHandler prints stringified objects", async () => {
+	const [stdout] = await runFixture("object");
+	assertEquals(getLine(stdout), `debug { key: "value" }`);
+});
+
 Deno.test("ConsoleHandler formats a record to JSON", async () => {
 	const [stdout] = await runFixture("json");
 	assertEquals(
 		getLine(stdout),
-		`{"level":"debug","message":["hello","there"]}`,
+		`{"level":"debug","message":["hello",{"key":"value"},[1,2,3],null,true]}`,
 	);
 });