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const { test } = Deno;import { assertEquals } from "../test_deps.ts";import { encode } from "../encode.ts";
// internally `encode` uses `getTimezoneOffset` to encode Date// so for testing purposes we'll be overriding itconst _getTimezoneOffset = Date.prototype.getTimezoneOffset;
function resetTimezoneOffset() {  Date.prototype.getTimezoneOffset = _getTimezoneOffset;}
function overrideTimezoneOffset(offset: number) {  Date.prototype.getTimezoneOffset = function () {    return offset;  };}
test(function encodeDatetime() {  // GMT  overrideTimezoneOffset(0);
  const gmtDate = new Date(2019, 1, 10, 20, 30, 40, 5);  const gmtEncoded = encode(gmtDate);  assertEquals(gmtEncoded, "2019-02-10T20:30:40.005+00:00");
  resetTimezoneOffset();
  // GMT+02:30  overrideTimezoneOffset(-150);
  const date = new Date(2019, 1, 10, 20, 30, 40, 5);  const encoded = encode(date);  assertEquals(encoded, "2019-02-10T20:30:40.005+02:30");
  resetTimezoneOffset();});
test(function encodeUndefined() {  assertEquals(encode(undefined), null);});
test(function encodeNull() {  assertEquals(encode(null), null);});
test(function encodeBoolean() {  assertEquals(encode(true), "true");  assertEquals(encode(false), "false");});
test(function encodeNumber() {  assertEquals(encode(1), "1");  assertEquals(encode(1.2345), "1.2345");});
test(function encodeString() {  assertEquals(encode("deno-postgres"), "deno-postgres");});
test(function encodeObject() {  assertEquals(encode({ x: 1 }), '{"x":1}');});
test(function encodeUint8Array() {  const buf = new Uint8Array([1, 2, 3]);  const encoded = encode(buf);
  assertEquals(buf, encoded);});
test(function encodeArray() {  const array = [null, "postgres", 1, ["foo", "bar"]];  const encodedArray = encode(array);
  assertEquals(encodedArray, '{NULL,"postgres","1",{"foo","bar"}}');});
test(function encodeObjectArray() {  const array = [{ x: 1 }, { y: 2 }];  const encodedArray = encode(array);  assertEquals(encodedArray, '{"{\\"x\\":1}","{\\"y\\":2}"}');});
test(function encodeDateArray() {  overrideTimezoneOffset(0);
  const array = [new Date(2019, 1, 10, 20, 30, 40, 5)];  const encodedArray = encode(array);  assertEquals(encodedArray, '{"2019-02-10T20:30:40.005+00:00"}');
  resetTimezoneOffset();});