import interpret from "../../../interpretor";

describe("literal", () => {
    it("supports literal with null", () => {
        expect(interpret("null", {})).toBeNull();
    });
    it("should preserve integer literal", () => {
        expect(interpret("12345", {})).toEqual(12345);
        expect(interpret("-12345", {})).toEqual(-12345);
    });
    it("should preserve number literals", () => {
        expect(interpret("1.", {})).toEqual(1.0);
        expect(interpret("1.1", {})).toEqual(1.1);
    });
    // TODO: https://github.com/InseeFr/VTL-Tools/issues/36
    it.skip("should preserve exp number literals", () => {
        expect(interpret("1.5e0", {})).toEqual(1.5);
        expect(interpret("1.5e+0", {})).toEqual(1.5);
        expect(interpret("1.5e-0", {})).toEqual(1.5);
        expect(interpret("1.e0", {})).toEqual(1.0);
        expect(interpret("1.5E1", {})).toEqual(15.0);
        expect(interpret("1.5E-1", {})).toEqual(0.15);
        expect(interpret("1.5E+1", {})).toEqual(15.0);
        expect(interpret("1.E+1", {})).toEqual(10);
    });
    it("should preserve boolean literals", () => {
        expect(interpret("true", {})).toEqual(true);
        expect(interpret("false", {})).toEqual(false);
    });
    it("should preserve string literal", () => {
        // String between double quotes otherwise interpreted as variable
        expect(interpret('"marvin"', {})).toEqual("marvin");
    });
    it.skip("should preserve date literal", () => {
        // TODO: This is not valid, there's no date literal.
        expect(interpret("1998-07-12", {})).toEqual("1998-07-12");
        // TO FIX
        //expect(interpret('1998-12-31', {})).toEqual('1998-12-31');
    });
    it("should preserve empty string literal", () => {
        // String between double quotes otherwise interpreted as variable
        expect(interpret('""', {})).toEqual("");
    });
});