// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

'use strict';
const common = require('../common');
const assert = require('assert');
const http = require('http');

// Verify that ServerResponse.writeHead() works as setHeader.
// Issue 5036 on github.

const s = http.createServer(common.mustCall((req, res) => {
  res.setHeader('test', '1');

  // toLowerCase() is used on the name argument, so it must be a string.
  // Non-String header names should throw
  assert.throws(
    () => res.setHeader(0xf00, 'bar'),
    {
      code: 'ERR_INVALID_HTTP_TOKEN',
      name: 'TypeError',
      message: 'Header name must be a valid HTTP token ["3840"]'
    }
  );

  // Undefined value should throw, via 979d0ca8
  assert.throws(
    () => res.setHeader('foo', undefined),
    {
      code: 'ERR_HTTP_INVALID_HEADER_VALUE',
      name: 'TypeError',
      message: 'Invalid value "undefined" for header "foo"'
    }
  );

  assert.throws(() => {
    res.writeHead(200, ['invalid', 'headers', 'args']);
  }, {
    code: 'ERR_INVALID_ARG_VALUE'
  });

  res.writeHead(200, { Test: '2' });

  assert.throws(() => {
    res.writeHead(100, {});
  }, {
    code: 'ERR_HTTP_HEADERS_SENT',
    name: 'Error',
  });

  res.end();
}));

s.listen(0, common.mustCall(runTest));

function runTest() {
  http.get({ port: this.address().port }, common.mustCall((response) => {
    response.on('end', common.mustCall(() => {
      assert.strictEqual(response.headers.test, '2');
      assert(response.rawHeaders.includes('Test'));
      s.close();
    }));
    response.resume();
  }));
}

{
  const server = http.createServer(common.mustCall((req, res) => {
    res.writeHead(220, [ 'test', '1' ]); // 220 is not a standard status code
    assert.strictEqual(res.statusMessage, 'unknown');

    assert.throws(() => res.writeHead(200, [ 'test2', '2' ]), {
      code: 'ERR_HTTP_HEADERS_SENT',
      name: 'Error',
    });
    res.end();
  }));

  server.listen(0, common.mustCall(() => {
    http.get({ port: server.address().port }, common.mustCall((res) => {
      assert.strictEqual(res.headers.test, '1');
      assert.strictEqual('test2' in res.headers, false);
      res.resume().on('end', common.mustCall(() => {
        server.close();
      }));
    }));
  }));
}
