import 'mocha';
import { expect } from 'chai';
import { FunctionParameter } from '@/application/Parser/Script/Compiler/Function/Parameter/FunctionParameter';
import { testParameterName } from '../../ParameterNameTestRunner';

describe('FunctionParameter', () => {
  describe('name', () => {
    testParameterName(
      (parameterName) => new FunctionParameterBuilder()
        .withName(parameterName)
        .build()
        .name,
    );
  });
  describe('isOptional', () => {
    describe('sets as expected', () => {
      // arrange
      const expectedValues = [true, false];
      for (const expected of expectedValues) {
        it(expected.toString(), () => {
          // act
          const sut = new FunctionParameterBuilder()
            .withIsOptional(expected)
            .build();
          // expect
          expect(sut.isOptional).to.equal(expected);
        });
      }
    });
  });
});

class FunctionParameterBuilder {
  private name = 'parameterFromParameterBuilder';

  private isOptional = false;

  public withName(name: string) {
    this.name = name;
    return this;
  }

  public withIsOptional(isOptional: boolean) {
    this.isOptional = isOptional;
    return this;
  }

  public build() {
    return new FunctionParameter(this.name, this.isOptional);
  }
}