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require_relative 'helper'
require 'reline/line_editor'
require 'stringio'
class Reline::LineEditor
class RenderLineDifferentialTest < Reline::TestCase
module TestIO
RESET_COLOR = "\e[0m"
def self.move_cursor_column(col)
@output << "[COL_#{col}]"
end
def self.erase_after_cursor
@output << '[ERASE]'
end
end
def setup
verbose, $VERBOSE = $VERBOSE, nil
@line_editor = Reline::LineEditor.new(nil, Encoding::UTF_8)
@original_iogate = Reline::IOGate
@output = StringIO.new
@line_editor.instance_variable_set(:@screen_size, [24, 80])
@line_editor.instance_variable_set(:@output, @output)
Reline.send(:remove_const, :IOGate)
Reline.const_set(:IOGate, TestIO)
Reline::IOGate.instance_variable_set(:@output, @output)
ensure
$VERBOSE = verbose
end
def assert_output(expected)
@output.reopen(+'')
yield
actual = @output.string
assert_equal(expected, actual.gsub("\e[0m", ''))
end
def teardown
Reline.send(:remove_const, :IOGate)
Reline.const_set(:IOGate, @original_iogate)
end
def test_line_increase_decrease
assert_output '[COL_0]bb' do
@line_editor.render_line_differential([[0, 1, 'a']], [[0, 2, 'bb']])
end
assert_output '[COL_0]b[COL_1][ERASE]' do
@line_editor.render_line_differential([[0, 2, 'aa']], [[0, 1, 'b']])
end
end
def test_dialog_appear_disappear
assert_output '[COL_3]dialog' do
@line_editor.render_line_differential([[0, 1, 'a']], [[0, 1, 'a'], [3, 6, 'dialog']])
end
assert_output '[COL_3]dialog' do
@line_editor.render_line_differential([[0, 10, 'a' * 10]], [[0, 10, 'a' * 10], [3, 6, 'dialog']])
end
assert_output '[COL_1][ERASE]' do
@line_editor.render_line_differential([[0, 1, 'a'], [3, 6, 'dialog']], [[0, 1, 'a']])
end
assert_output '[COL_3]aaaaaa' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [3, 6, 'dialog']], [[0, 10, 'a' * 10]])
end
end
def test_dialog_change
assert_output '[COL_3]DIALOG' do
@line_editor.render_line_differential([[0, 2, 'a'], [3, 6, 'dialog']], [[0, 2, 'a'], [3, 6, 'DIALOG']])
end
assert_output '[COL_3]DIALOG' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [3, 6, 'dialog']], [[0, 10, 'a' * 10], [3, 6, 'DIALOG']])
end
end
def test_update_under_dialog
assert_output '[COL_0]b[COL_1] ' do
@line_editor.render_line_differential([[0, 2, 'aa'], [4, 6, 'dialog']], [[0, 1, 'b'], [4, 6, 'dialog']])
end
assert_output '[COL_0]bbb[COL_9]b' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [3, 6, 'dialog']], [[0, 10, 'b' * 10], [3, 6, 'dialog']])
end
assert_output '[COL_0]b[COL_1] [COL_9][ERASE]' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [3, 6, 'dialog']], [[0, 1, 'b'], [3, 6, 'dialog']])
end
end
def test_dialog_move
assert_output '[COL_3]dialog[COL_9][ERASE]' do
@line_editor.render_line_differential([[0, 1, 'a'], [4, 6, 'dialog']], [[0, 1, 'a'], [3, 6, 'dialog']])
end
assert_output '[COL_4] [COL_5]dialog' do
@line_editor.render_line_differential([[0, 1, 'a'], [4, 6, 'dialog']], [[0, 1, 'a'], [5, 6, 'dialog']])
end
assert_output '[COL_2]dialog[COL_8]a' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [3, 6, 'dialog']], [[0, 10, 'a' * 10], [2, 6, 'dialog']])
end
assert_output '[COL_2]a[COL_3]dialog' do
@line_editor.render_line_differential([[0, 10, 'a' * 10], [2, 6, 'dialog']], [[0, 10, 'a' * 10], [3, 6, 'dialog']])
end
end
def test_complicated
state_a = [nil, [19, 7, 'bbbbbbb'], [15, 8, 'cccccccc'], [10, 5, 'ddddd'], [18, 4, 'eeee'], [1, 3, 'fff'], [17, 2, 'gg'], [7, 1, 'h']]
state_b = [[5, 9, 'aaaaaaaaa'], nil, [15, 8, 'cccccccc'], nil, [18, 4, 'EEEE'], [25, 4, 'ffff'], [17, 2, 'gg'], [2, 2, 'hh']]
# state_a: " fff h dddddccggeeecbbb"
# state_b: " hh aaaaaaaaa ccggEEEc ffff"
assert_output '[COL_1] [COL_2]hh[COL_5]aaaaaaaaa[COL_14] [COL_19]EEE[COL_23] [COL_25]ffff' do
@line_editor.render_line_differential(state_a, state_b)
end
assert_output '[COL_1]fff[COL_5] [COL_7]h[COL_8] [COL_10]ddddd[COL_19]eee[COL_23]bbb[COL_26][ERASE]' do
@line_editor.render_line_differential(state_b, state_a)
end
end
end
def test_menu_info_format
list = %w[aa b c d e f g hhh i j k]
col3 = [
'aa e i',
'b f j',
'c g k',
'd hhh'
]
col2 = [
'aa g',
'b hhh',
'c i',
'd j',
'e k',
'f'
]
assert_equal(col3, Reline::LineEditor::MenuInfo.new(list).lines(19))
assert_equal(col3, Reline::LineEditor::MenuInfo.new(list).lines(15))
assert_equal(col2, Reline::LineEditor::MenuInfo.new(list).lines(14))
assert_equal(col2, Reline::LineEditor::MenuInfo.new(list).lines(10))
assert_equal(list, Reline::LineEditor::MenuInfo.new(list).lines(9))
assert_equal(list, Reline::LineEditor::MenuInfo.new(list).lines(0))
assert_equal([], Reline::LineEditor::MenuInfo.new([]).lines(10))
end
end
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