local hglib = require('hglib')
describe('hglib helper functions', function()
	describe('decode_i4', function()
		it('can decode 0', function()
			assert.are_equal(0, hglib.decode_i4('\0\0\0\0'))
		end)
		it('can decode 255', function()
			assert.are_equal(255, hglib.decode_i4('\0\0\0\255'))
		end)
		it('can decode 256', function()
			assert.are_equal(256, hglib.decode_i4('\0\0\1\0'))
		end)
		it('can decode -1', function()
			assert.are_equal(-1, hglib.decode_i4('\255\255\255\255'))
		end)
	end)
end)
describe('hglib client', function()
	it('can connect using just file handles', function()
		local rh = io.open('spec/data/hello', 'rb')
		local client = hglib.Client.connect(rh, nil)
		rh:close()
		assert.is_true(client.capabilities.getencoding)
		assert.is_true(client.capabilities.runcommand)
		assert.are_equal('UTF-8', client.encoding)
		assert.are_equal(3615, client.pid)
		assert.are_equal(3615, client.pgid)
	end)
	it('can launch a new cmdserver process', function()
		local client = hglib.Client.open()
		assert.is_true(client.capabilities.getencoding)
		assert.is_true(client.capabilities.runcommand)
		assert.are_equal('string', type(client.encoding))
		assert.are_equal('number', type(client.pid))
		assert.are_equal('number', type(client.lpcpid))
		assert.are_equal('file', io.type(client.rh))
		assert.are_equal('file', io.type(client.wh))
		client:close()
	end)
	it('can send getencoding command', function()
		local client = hglib.Client.open()
		local encoding, err = client:getencoding()
		client:close()
		assert.is_nil(err)
		assert.are_equal('string', type(encoding))
	end)
end)