src/util/logger.test.ts


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61

import configureLogger from "./logger";
import { SPLAT } from "triple-beam";
import Transport from "winston-transport";

describe("Logger configurer", () => {
  it("should set passed clazz as label", () => {
    // Arrange
    const clazz = "important-clazz-name";
    const adapter = {
      level: "info",
      message: "test/10",
    };

    // Act
    const result = configureLogger(clazz);
    const actual = result.format.transform(Object.assign({}, adapter));

    // Assert
    expect(typeof actual).not.toEqual("boolean");
    if (typeof actual !== "boolean") {
      expect(actual.level).toEqual(adapter.level);
      expect(actual.message).toEqual(adapter.message);
      expect(actual.label).toEqual(clazz);
    }
  });

  it("should set default formats", () => {
    // Arrange
    const label = "aaa";
    const adapter = {
      level: "info",
      message: "%s/10",
      [SPLAT]: ["test"],
    };

    // Act
    const result = configureLogger(label);
    const actual = result.format.transform(Object.assign({}, adapter));

    // Assert
    expect(typeof actual).not.toEqual("boolean");
    if (typeof actual !== "boolean") {
      expect(actual.message).toEqual("test/10");
      expect(typeof actual.timestamp).toEqual("string");
      expect(typeof actual.label).toEqual("string");
    }
  });

  it("should set expected transport methods", () => {
    // Arrange
    const label = "aaa";

    // Act
    const result = configureLogger(label);

    // Assert
    expect(result.transports).toBeInstanceOf(Array);
    expect(result.transports.length).toEqual(1);
    result.transports.forEach((t) => expect(t).toBeInstanceOf(Transport));
  });
});