import assert from "assert";
import { Format } from "./Format";

describe("Format", function () {
   describe("n,number ", function () {
      it("correctly formats numbers with min and max allowed precision", function () {
         assert.equal(Format.value(0.5, "n;2;4"), "0.50");
         assert.equal(Format.value(0.50101, "n;2;4"), "0.501");
         assert.equal(Format.value(0.5012, "n;2;4"), "0.5012");
         assert.equal(Format.value(0.0, "n;0;4"), "0");
      });

      it("correctly formats numbers fixed precision", function () {
         assert.equal(Format.value(0.5, "number;3"), "0.500");
         assert.equal(Format.value(0.50101, "number;3"), "0.501");
         assert.equal(Format.value(0.5016, "number;3"), "0.502");
      });
   });

   describe("p,percentage", function () {
      it("correctly formats numbers with min and max allowed precision", function () {
         assert.equal(Format.value(0.5, "p;2;4"), "50.00%");
         assert.equal(Format.value(0.50101, "p;2;4"), "50.101%");
         assert.equal(Format.value(0.50123456, "p;2;4"), "50.1235%");
         assert.equal(Format.value(0.0, "p;0;4"), "0%");
      });

      it("correctly formats numbers fixed precision", function () {
         assert.equal(Format.value(0.5, "percentage;3"), "50.000%");
         assert.equal(Format.value(0.50101, "percentage;3"), "50.101%");
         assert.equal(Format.value(0.5016, "percentage;3"), "50.160%");
      });
   });

   describe("date,time,datetime", function () {
      it("correctly formats dates", function () {
         assert.equal(Format.value(new Date(2015, 3, 1), "d"), "4/1/2015");
      });

      it("correctly formats time", function () {
         assert.equal(Format.value(new Date(2015, 3, 1, 16, 15, 14), "t"), "16:15");
         assert.equal(Format.value(new Date(2015, 3, 1, 5, 6, 14), "time"), "05:06");
      });

      it("correctly formats date-time", function () {
         assert.equal(Format.value(new Date(2015, 3, 1, 5, 6, 14), "dt"), "4/1/2015 05:06");
      });
   });

   describe("ellipsis", function () {
      it("can shorten long texts", function () {
         assert.equal(Format.value("This is a very long text.", "ellipsis;7"), "This...");
      });

      it("can be used at the start of string", function () {
         assert.equal(Format.value("This is a very long text.", "ellipsis;8;start"), "...text.");
      });

      it("can be used in the middle of the string", function () {
         assert.equal(Format.value("First (Middle) Last", "ellipsis;11;middle"), "Firs...Last");
      });
   });

   describe("null text", function () {
      it("can contain null text", function () {
         assert.equal(Format.value(null, "n;2|N/A"), "N/A");
      });
   });
});