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"use strict";
define(function (require) {
  var assert = require("assert");
  var headeremitter = require("jsmime").headeremitter;
  var MockDate = require("test/mock_date");

  function arrayTest(data, fn) {
    fn.toString = function () {
      let text = Function.prototype.toString.call(this);
      text = text.replace(/data\[([0-9]*)\]/g, function (m, p) {
        return JSON.stringify(data[p]);
      });
      return text;
    };
    return test(JSON.stringify(data[0]), fn);
  }

  function testHeader(header, tests) {
    suite(header, function () {
      tests.forEach(function (data) {
        arrayTest(data, function () {
          assert.deepEqual(
            headeremitter.emitStructuredHeader(header, data[0], {
              softMargin: 100,
              useASCII: true,
            }),
            (header + ": " + data[1]).trim() + "\r\n"
          );
        });
      });
    });
  }

  suite("Structured header emitters", function () {
    // Ad-hoc header tests
    // TODO: add structured encoder tests for Content-Type when it is added.

    testHeader("Content-Transfer-Encoding", [
      ["", ""],
      ["8bit", "8bit"],
      ["invalid", "invalid"],
    ]);

    // Non-ad-hoc header tests
    let addressing_headers = [
      "From",
      "To",
      "Cc",
      "Bcc",
      "Sender",
      "Reply-To",
      "Resent-Bcc",
      "Resent-To",
      "Resent-From",
      "Resent-Cc",
      "Resent-Sender",
      "Approved",
      "Disposition-Notification-To",
      "Delivered-To",
      "Return-Receipt-To",
      "Resent-Reply-To",
      "Mail-Reply-To",
      "Mail-Followup-To",
    ];
    let address_tests = [
      [{ name: "", email: "" }, ""],
      [
        { name: "John Doe", email: "john.doe@test.invalid" },
        "John Doe <john.doe@test.invalid>",
      ],
      [
        [{ name: "John Doe", email: "john.doe@test.invalid" }],
        "John Doe <john.doe@test.invalid>",
      ],
      [
        { name: "undisclosed-recipients", group: [] },
        "undisclosed-recipients: ;",
      ],
    ];
    addressing_headers.forEach(function (header) {
      testHeader(header, address_tests);
    });

    let date_headers = [
      "Date",
      "Expires",
      "Injection-Date",
      "NNTP-Posting-Date",
      "Resent-Date",
    ];
    let date_tests = [
      [
        new MockDate("2012-09-06T08:08:21-0700"),
        "Thu, 6 Sep 2012 08:08:21 -0700",
      ],
    ];
    date_headers.forEach(function (header) {
      testHeader(header, date_tests);
    });

    let unstructured_headers = [
      "Comments",
      "Content-Description",
      "Keywords",
      "Subject",
    ];
    let unstructured_tests = [
      ["", ""],
      ["This is a subject", "This is a subject"],
      [
        "\u79c1\u306f\u4ef6\u540d\u5348\u524d",
        "=?UTF-8?B?56eB44Gv5Lu25ZCN5Y2I5YmN?=",
      ],
    ];
    unstructured_headers.forEach(function (header) {
      testHeader(header, unstructured_tests);
    });

    test("emitStructuredHeaders", function () {
      let headers = new Map();
      headers.set("From", [{ name: "", email: "bugzilla-daemon@mozilla.org" }]);
      headers.set("subject", ["[Bug 939557] browsercomps.dll failed to build"]);
      headers.set("x-capitalization-test", ["should capitalize"]);
      let str = headeremitter.emitStructuredHeaders(headers, {});
      assert.equal(
        str,
        "From: bugzilla-daemon@mozilla.org\r\n" +
          "Subject: [Bug 939557] browsercomps.dll failed to build\r\n" +
          "X-Capitalization-Test: should capitalize\r\n"
      );
    });
  });
});