1 files changed, 57 insertions, 0 deletions
diff --git a/test/readline/test_readline.rb b/test/readline/test_readline.rb
new file mode 100644
index 0000000000..f41f3584cb
--- /dev/null
+++ b/test/readline/test_readline.rb
@@ -0,0 +1,57 @@
+begin
+  require "readline"
+rescue LoadError
+end
+
+if defined?(Readline)
+
+require "test/unit"
+require "tempfile"
+
+class TestReadline < Test::Unit::TestCase
+  def test_readline
+    stdin = Tempfile.new("test_readline_stdin")
+    stdout = Tempfile.new("test_readline_stdout")
+    begin
+      stdin.write("hello\n")
+      stdin.rewind
+      line = replace_stdio(stdin, stdout) { Readline.readline("> ") }
+      assert_equal("hello", line)
+      assert_equal(true, line.tainted?)
+      assert_raises(SecurityError) do
+        Thread.start {
+          $SAFE = 1
+          replace_stdio(stdin, stdout) { Readline.readline("> ".taint) }
+        }.join
+      end
+      assert_raises(SecurityError) do
+        Thread.start {
+          $SAFE = 4
+          replace_stdio(stdin, stdout) { Readline.readline("> ") }
+        }.join
+      end
+      stdout.rewind
+      assert_equal("> ", stdout.read(2))
+    ensure
+      stdin.close(true)
+      stdout.close(true)
+    end
+  end
+
+  private
+
+  def replace_stdio(stdin, stdout)
+    orig_stdin = STDIN.dup
+    orig_stdout = STDOUT.dup
+    STDIN.reopen(stdin)
+    STDOUT.reopen(stdout)
+    begin
+      yield
+    ensure
+      STDIN.reopen(orig_stdin)
+      STDOUT.reopen(orig_stdout)
+    end
+  end
+end
+
+end