1 files changed, 100 insertions, 0 deletions
diff --git a/test/shell/test_command_processor.rb b/test/shell/test_command_processor.rb
new file mode 100644
index 0000000000..51e14b5a69
--- /dev/null
+++ b/test/shell/test_command_processor.rb
@@ -0,0 +1,100 @@
+# frozen_string_literal: false
+require 'shell'
+require 'tmpdir'
+
+class TestShell < Test::Unit::TestCase
+end
+class TestShell::CommandProcessor < Test::Unit::TestCase
+  def setup
+    @tmpdir = Dir.mktmpdir("test_shell")
+    @shell = Shell.new
+    @shell.system_path = [@tmpdir]
+  end
+
+  def teardown
+    Dir.rmdir(@tmpdir)
+  end
+
+  def catch_command_start(tc = Object.new)
+    @shell.process_controller.singleton_class.class_eval do
+      define_method(:add_schedule) {|cmd| throw tc, cmd}
+    end
+    tc
+  end
+
+  def exeext
+    RbConfig::CONFIG["EXECUTABLE_EXTS"][/\S+\z/]
+  end
+
+  def test_system_external
+    name = "foo#{exeext}"
+    path = File.join(@tmpdir, name)
+    open(path, "w", 0755) {}
+
+    cmd = assert_throw(catch_command_start) {@shell.system(name)}
+    assert_equal(path, cmd.command)
+  ensure
+    File.unlink(path)
+  end
+
+  def test_system_not_found
+    bug8918 = '[ruby-core:57235] [Bug #8918]'
+
+    name = "foo"
+    path = File.join(@tmpdir, name)
+    open(path, "w", 0644) {}
+
+    assert_raise(Shell::Error::CommandNotFound, bug8918) {
+      catch(catch_command_start) {@shell.system(name)}
+    }
+  ensure
+    Process.waitall
+    File.unlink(path)
+  end
+
+  def test_system_directory
+    bug8918 = '[ruby-core:57235] [Bug #8918]'
+
+    name = "foo#{exeext}"
+    path = File.join(@tmpdir, name)
+    Dir.mkdir(path)
+
+    assert_raise(Shell::Error::CommandNotFound, bug8918) {
+      catch(catch_command_start) {@shell.system(name)}
+    }
+  ensure
+    Process.waitall
+    Dir.rmdir(path)
+  end
+
+  def test_test
+    name = "foo#{exeext}"
+    path = File.join(@tmpdir, name)
+    open(path, "w", 0644) {}
+
+    assert_equal(true, @shell[?e, path])
+    assert_equal(true, @shell[:e, path])
+    assert_equal(true, @shell["e", path])
+    assert_equal(true, @shell[:exist?, path])
+    assert_equal(true, @shell["exist?", path])
+    assert_raise_with_message(RuntimeError, /unsupported command/) do
+      assert_equal(true, @shell[:instance_eval, path])
+    end
+  ensure
+    Process.waitall
+    File.unlink(path)
+  end
+
+  def test_option_type
+    name = 'foo.cmd'
+    path = File.join(@tmpdir, name)
+
+    open(path, 'w', 0755) {}
+    assert_raise(TypeError) {
+      catch(catch_command_start) {@shell.system(name, 42)}
+    }
+  ensure
+    Process.waitall
+    File.unlink(path)
+  end
+end