io: Skip TTY test for environments that TTY device is unavailable.
e.g. GitLab CI
@@ -344,15 +344,21 @@ end
assert('IO#isatty') do
skip "isatty is not supported on this platform" if MRubyIOTestUtil.win?
- f1 = File.open("/dev/tty")
- f2 = File.open($mrbtest_io_rfname)
-
- assert_true f1.isatty
- assert_false f2.isatty
-
- f1.close
- f2.close
- true
+ begin
+ f = File.open("/dev/tty")
+ rescue RuntimeError => e
+ skip e.message
+ else
+ assert_true f.isatty
+ ensure
+ f&.close
+ end
+ begin
+ f = File.open($mrbtest_io_rfname)
+ assert_false f.isatty
+ ensure
+ f&.close
+ end
end
assert('IO#pos=, IO#seek') do
