eslint-plugin-file-export-name/test/utils.test.js

ESLint plugin to enforce matching file names with default export names.

const { convertToCase, matchPattern } = require("../src/utils.cjs");

describe("convertToCase", () => {
  describe("pascal case", () => {
    test("converts kebab case to pascal case", () => {
      expect(convertToCase("my-component", "pascal")).toBe("MyComponent");
    });

    test("converts snake case to pascal case", () => {
      expect(convertToCase("my_component", "pascal")).toBe("MyComponent");
    });
  });

  describe("camel case", () => {
    test("converts kebab case to camel case", () => {
      expect(convertToCase("my-component", "camel")).toBe("myComponent");
    });

    test("converts snake case to camel case", () => {
      expect(convertToCase("my_component", "camel")).toBe("myComponent");
    });
  });

  describe("kebab case", () => {
    test("converts pascal case to kebab case", () => {
      expect(convertToCase("MyComponent", "kebab")).toBe("my-component");
    });

    test("converts camel case to kebab case", () => {
      expect(convertToCase("myComponent", "kebab")).toBe("my-component");
    });
  });

  describe("snake case", () => {
    test("converts pascal case to snake case", () => {
      expect(convertToCase("MyComponent", "snake")).toBe("my_component");
    });

    test("converts camel case to snake case", () => {
      expect(convertToCase("myComponent", "snake")).toBe("my_component");
    });
  });

  test("throws error for unknown case type", () => {
    expect(() => convertToCase("test", "unknown")).toThrow("Unknown case type: unknown");
  });
});

describe("matchPattern", () => {
  test("matches pattern correctly", () => {
    const pattern = /^Test.*$/;
    expect(matchPattern(pattern, "TestComponent")).toBe(true);
    expect(matchPattern(pattern, "OtherComponent")).toBe(false);
  });

  test("matches complex patterns", () => {
    const pattern = /^[A-Z][a-z]+(?:[A-Z][a-z]+)*$/;  // PascalCase pattern
    expect(matchPattern(pattern, "MyComponent")).toBe(true);
    expect(matchPattern(pattern, "myComponent")).toBe(false);
  });
});