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std/log - Expose Logger type and improve public interface for get & set log levels (#6617)

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Paul Thompson 2020-07-06 13:57:31 +10:00 • committed by GitHub
parent d1289db1c3
commit c3c13351a9
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3 changed files with 166 additions and 13 deletions
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133
std/log/mod_test.ts
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@ -8,8 +8,10 @@ import {
error,
critical,
setup,
Logger,
LogLevels,
LevelName,
} from "./mod.ts";
import { Logger } from "./logger.ts";
import { BaseHandler } from "./handlers.ts";
class TestHandler extends BaseHandler {
@ -89,3 +91,132 @@ Deno.test({
assertEquals(anotherConsoleHandler.messages[0], "[tasks] ERROR world");
},
});
Deno.test({
name: "Loggers have level and levelName to get/set loglevels",
async fn() {
const testHandler = new TestHandler("DEBUG");
await setup({
handlers: {
test: testHandler,
},
loggers: {
// configure default logger available via short-hand methods above
default: {
level: "DEBUG",
handlers: ["test"],
},
},
});
const logger: Logger = getLogger();
assertEquals(logger.levelName, "DEBUG");
assertEquals(logger.level, LogLevels.DEBUG);
logger.debug("debug");
logger.error("error");
logger.critical("critical");
assertEquals(testHandler.messages.length, 3);
assertEquals(testHandler.messages[0], "DEBUG debug");
assertEquals(testHandler.messages[1], "ERROR error");
assertEquals(testHandler.messages[2], "CRITICAL critical");
testHandler.messages = [];
logger.level = LogLevels.WARNING;
assertEquals(logger.levelName, "WARNING");
assertEquals(logger.level, LogLevels.WARNING);
logger.debug("debug2");
logger.error("error2");
logger.critical("critical2");
assertEquals(testHandler.messages.length, 2);
assertEquals(testHandler.messages[0], "ERROR error2");
assertEquals(testHandler.messages[1], "CRITICAL critical2");
testHandler.messages = [];
const setLevelName: LevelName = "CRITICAL";
logger.levelName = setLevelName;
assertEquals(logger.levelName, "CRITICAL");
assertEquals(logger.level, LogLevels.CRITICAL);
logger.debug("debug3");
logger.error("error3");
logger.critical("critical3");
assertEquals(testHandler.messages.length, 1);
assertEquals(testHandler.messages[0], "CRITICAL critical3");
},
});
Deno.test({
name: "Loggers have loggerName to get logger name",
async fn() {
const testHandler = new TestHandler("DEBUG");
await setup({
handlers: {
test: testHandler,
},
loggers: {
namedA: {
level: "DEBUG",
handlers: ["test"],
},
namedB: {
level: "DEBUG",
handlers: ["test"],
},
},
});
assertEquals(getLogger("namedA").loggerName, "namedA");
assertEquals(getLogger("namedB").loggerName, "namedB");
assertEquals(getLogger().loggerName, "default");
assertEquals(getLogger("nonsetupname").loggerName, "nonsetupname");
},
});
Deno.test({
name: "Logger has mutable handlers",
async fn() {
const testHandlerA = new TestHandler("DEBUG");
const testHandlerB = new TestHandler("DEBUG");
await setup({
handlers: {
testA: testHandlerA,
testB: testHandlerB,
},
loggers: {
default: {
level: "DEBUG",
handlers: ["testA"],
},
},
});
const logger: Logger = getLogger();
logger.info("msg1");
assertEquals(testHandlerA.messages.length, 1);
assertEquals(testHandlerA.messages[0], "INFO msg1");
assertEquals(testHandlerB.messages.length, 0);
logger.handlers = [testHandlerA, testHandlerB];
logger.info("msg2");
assertEquals(testHandlerA.messages.length, 2);
assertEquals(testHandlerA.messages[1], "INFO msg2");
assertEquals(testHandlerB.messages.length, 1);
assertEquals(testHandlerB.messages[0], "INFO msg2");
logger.handlers = [testHandlerB];
logger.info("msg3");
assertEquals(testHandlerA.messages.length, 2);
assertEquals(testHandlerB.messages.length, 2);
assertEquals(testHandlerB.messages[1], "INFO msg3");
logger.handlers = [];
logger.info("msg4");
assertEquals(testHandlerA.messages.length, 2);
assertEquals(testHandlerB.messages.length, 2);
},
});