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Code.require_file "test_helper.exs", __DIR__
defmodule IOTest do
use ExUnit.Case, async: true
import ExUnit.CaptureIO
test :read_with_count do
{:ok, file} = File.open(Path.expand('fixtures/file.txt', __DIR__), [:char_list])
assert 'FOO' == IO.read(file, 3)
assert File.close(file) == :ok
end
test :read_with_utf8_and_binary do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__), [:utf8])
assert "Русский" == IO.read(file, 7)
assert File.close(file) == :ok
end
test :binread do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__))
assert "Русский" == IO.binread(file, 14)
assert File.close(file) == :ok
end
test :getn do
{:ok, file} = File.open(Path.expand('fixtures/file.txt', __DIR__))
assert "F" == IO.getn(file, "")
assert "O" == IO.getn(file, "")
assert "O" == IO.getn(file, "")
assert "\n" == IO.getn(file, "")
assert :eof == IO.getn(file, "")
assert File.close(file) == :ok
end
test :getn_with_count do
{:ok, file} = File.open(Path.expand('fixtures/file.txt', __DIR__), [:char_list])
assert 'FOO' == IO.getn(file, "", 3)
assert File.close(file) == :ok
end
test :getn_with_utf8_and_binary do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__), [:utf8])
assert "Русский" == IO.getn(file, "", 7)
assert File.close(file) == :ok
end
test :gets do
{:ok, file} = File.open(Path.expand('fixtures/file.txt', __DIR__), [:char_list])
assert 'FOO\n' == IO.gets(file, "")
assert :eof == IO.gets(file, "")
assert File.close(file) == :ok
end
test :gets_with_utf8_and_binary do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__), [:utf8])
assert "Русский\n" == IO.gets(file, "")
assert "日\n" == IO.gets(file, "")
assert File.close(file) == :ok
end
test :readline do
{:ok, file} = File.open(Path.expand('fixtures/file.txt', __DIR__))
assert "FOO\n" == IO.read(file, :line)
assert :eof == IO.read(file, :line)
assert File.close(file) == :ok
end
test :readline_with_utf8_and_binary do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__), [:utf8])
assert "Русский\n" == IO.read(file, :line)
assert "日\n" == IO.read(file, :line)
assert File.close(file) == :ok
end
test :binreadline do
{:ok, file} = File.open(Path.expand('fixtures/utf8.txt', __DIR__))
assert "Русский\n" == IO.binread(file, :line)
assert "日\n" == IO.binread(file, :line)
assert File.close(file) == :ok
end
test :puts_with_chardata do
assert capture_io(fn -> IO.puts("hello") end) == "hello\n"
assert capture_io(fn -> IO.puts('hello') end) == "hello\n"
assert capture_io(fn -> IO.puts(:hello) end) == "hello\n"
assert capture_io(fn -> IO.puts(13) end) == "13\n"
end
test :write_with_chardata do
assert capture_io(fn -> IO.write("hello") end) == "hello"
assert capture_io(fn -> IO.write('hello') end) == "hello"
assert capture_io(fn -> IO.write(:hello) end) == "hello"
assert capture_io(fn -> IO.write(13) end) == "13"
end
test :gets_with_chardata do
assert capture_io("foo\n", fn -> IO.gets("hello") end) == "hello"
assert capture_io("foo\n", fn -> IO.gets('hello') end) == "hello"
assert capture_io("foo\n", fn -> IO.gets(:hello) end) == "hello"
assert capture_io("foo\n", fn -> IO.gets(13) end) == "13"
end
test :getn_with_chardata do
assert capture_io("foo\n", fn -> IO.getn("hello", 3) end) == "hello"
assert capture_io("foo\n", fn -> IO.getn('hello', 3) end) == "hello"
assert capture_io("foo\n", fn -> IO.getn(:hello, 3) end) == "hello"
assert capture_io("foo\n", fn -> IO.getn(13, 3) end) == "13"
end
end
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