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denoland-deno/std/log/test.ts

105 lines
2.2 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
const { test } = Deno;
import { assertEquals } from "../testing/asserts.ts";
import * as log from "./mod.ts";
import { LogLevel } from "./levels.ts";
class TestHandler extends log.handlers.BaseHandler {
public messages: string[] = [];
log(msg: string): void {
this.messages.push(msg);
}
}
test(async function defaultHandlers(): Promise<void> {
const loggers: {
[key: string]: (msg: string, ...args: unknown[]) => void;
} = {
DEBUG: log.debug,
INFO: log.info,
WARNING: log.warning,
ERROR: log.error,
CRITICAL: log.critical
};
for (const levelName in LogLevel) {
if (levelName === "NOTSET") {
continue;
}
const logger = loggers[levelName];
const handler = new TestHandler(levelName);
await log.setup({
handlers: {
default: handler
},
loggers: {
default: {
level: levelName,
handlers: ["default"]
}
}
});
logger("foo");
logger("bar", 1, 2);
assertEquals(handler.messages, [`${levelName} foo`, `${levelName} bar`]);
}
});
test(async function getLogger(): Promise<void> {
const handler = new TestHandler("DEBUG");
await log.setup({
handlers: {
default: handler
},
loggers: {
default: {
level: "DEBUG",
handlers: ["default"]
}
}
});
const logger = log.getLogger();
assertEquals(logger.levelName, "DEBUG");
assertEquals(logger.handlers, [handler]);
});
test(async function getLoggerWithName(): Promise<void> {
const fooHandler = new TestHandler("DEBUG");
await log.setup({
handlers: {
foo: fooHandler
},
loggers: {
bar: {
level: "INFO",
handlers: ["foo"]
}
}
});
const logger = log.getLogger("bar");
assertEquals(logger.levelName, "INFO");
assertEquals(logger.handlers, [fooHandler]);
});
test(async function getLoggerUnknown(): Promise<void> {
await log.setup({
handlers: {},
loggers: {}
});
const logger = log.getLogger("nonexistent");
assertEquals(logger.levelName, "NOTSET");
assertEquals(logger.handlers, []);
});