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import { assertEquals } from "./deps.ts";import { Log, LogLevel } from "./mod.ts";
const levels = ["debug", "info", "warn", "error"] as LogLevel[];
const date = new Date(2020, 9, 6, 8, 2, 45);function generateLogPrefixes(log: Log) {  return levels.map((level) => log._prefix(date, level));}
Deno.test("normal", () => {  assertEquals(    generateLogPrefixes(new Log()),    [      ["\x1b[0m2020-10-06T08:02:45+09:00 ✔\x1b[0m"],      ["\x1b[34m2020-10-06T08:02:45+09:00 ℹ\x1b[39m"],      ["\x1b[33m2020-10-06T08:02:45+09:00 ⚠\x1b[39m"],      ["\x1b[31m2020-10-06T08:02:45+09:00 ✖\x1b[39m"],    ],  );});
Deno.test("no levels", () => {  assertEquals(    generateLogPrefixes(new Log({ levelIndicator: "none" })),    [      ["\x1b[0m2020-10-06T08:02:45+09:00\x1b[0m"],      ["\x1b[34m2020-10-06T08:02:45+09:00\x1b[39m"],      ["\x1b[33m2020-10-06T08:02:45+09:00\x1b[39m"],      ["\x1b[31m2020-10-06T08:02:45+09:00\x1b[39m"],    ],  );});
Deno.test("initial", () => {  assertEquals(    generateLogPrefixes(new Log({ levelIndicator: "initial" })),    [      ["\x1b[0m2020-10-06T08:02:45+09:00 D\x1b[0m"],      ["\x1b[34m2020-10-06T08:02:45+09:00 I\x1b[39m"],      ["\x1b[33m2020-10-06T08:02:45+09:00 W\x1b[39m"],      ["\x1b[31m2020-10-06T08:02:45+09:00 E\x1b[39m"],    ],  );});
Deno.test("full", () => {  assertEquals(    generateLogPrefixes(new Log({ levelIndicator: "full" })),    [      ["\x1b[0m2020-10-06T08:02:45+09:00 DEBUG\x1b[0m"],      ["\x1b[34m2020-10-06T08:02:45+09:00 INFO \x1b[39m"],      ["\x1b[33m2020-10-06T08:02:45+09:00 WARN \x1b[39m"],      ["\x1b[31m2020-10-06T08:02:45+09:00 ERROR\x1b[39m"],    ],  );});
Deno.test("change datetime format", () => {  assertEquals(    generateLogPrefixes(new Log({ datetimeFormat: "MMM, d, YYYY, h:m a" })),    [      ["\x1b[0mOct, 6, 2020, 8:2 AM ✔\x1b[0m"],      ["\x1b[34mOct, 6, 2020, 8:2 AM ℹ\x1b[39m"],      ["\x1b[33mOct, 6, 2020, 8:2 AM ⚠\x1b[39m"],      ["\x1b[31mOct, 6, 2020, 8:2 AM ✖\x1b[39m"],    ],  );});
Deno.test("no timestamp", () => {  assertEquals(    generateLogPrefixes(new Log({ datetimeFormat: "" })),    [      ["\x1b[0m✔\x1b[0m"],      ["\x1b[34mℹ\x1b[39m"],      ["\x1b[33m⚠\x1b[39m"],      ["\x1b[31m✖\x1b[39m"],    ],  );});
function collectConsoleArgs(log: Log) {  const result: unknown[] = [];  levels.forEach((level) => {    // stub console    console[level] = (...args: unknown[]) => {      result.push(args);    };    log[level](level);  });  return result;}
Deno.test("add newline", () => {  assertEquals(    collectConsoleArgs(new Log({ datetimeFormat: "", addNewLine: true })),    [      ["\x1b[0m✔\x1b[0m", "debug", "\n"],      ["\x1b[34mℹ\x1b[39m", "info", "\n"],      ["\x1b[33m⚠\x1b[39m", "warn", "\n"],      ["\x1b[31m✖\x1b[39m", "error", "\n"],    ],  );});
Deno.test("minimum level", () => {  assertEquals(    collectConsoleArgs(new Log({ datetimeFormat: "", minLogLevel: "warn" })),    [      ["\x1b[33m⚠\x1b[39m", "warn"],      ["\x1b[31m✖\x1b[39m", "error"],    ],  );});
Deno.test("no prefix", () => {  assertEquals(    collectConsoleArgs(new Log({ datetimeFormat: "", levelIndicator: "none" })),    [      ["debug"],      ["info"],      ["warn"],      ["error"],    ],  );});