add test of 'output_encoding'

t/CMDTEST_output_encoding.rb

@@ -0,0 +1,76 @@
+# coding: utf-8
+
+require "selftest_utils"
+
+class CMDTEST_output_encoding < Cmdtest::Testcase
+
+  include SelftestUtils
+
+  def test_output_encoding_ASCII_DEFAULT
+    create_CMDTEST_foo [
+      'cmd "echo.rb raksmorgas" do',
+      '    comment "ok"',
+      '    stdout_equal "raksmorgas\n"',
+      'end',
+      'cmd "echo.rb räksmörgås" do',
+      '    comment "error"',
+      'end',
+    ]
+
+    cmd_cmdtest do
+      stdout_equal [
+        "### ok",
+        "### error",
+        "--- ERROR: unexpected encoding: STDOUT not 'ascii'",
+      ]
+      exit_nonzero
+    end
+  end
+
+  def test_output_encoding_UTF8_GLOBAL
+    create_CMDTEST_foo [
+      'output_encoding "utf-8"',
+      'cmd "echo.rb raksmorgas" do',
+      '    comment "ok ascii"',
+      '    stdout_equal "raksmorgas\n"',
+      'end',
+      'cmd "echo.rb räksmörgås" do',
+      '    comment "ok utf8"',
+      '    stdout_equal "räksmörgås\n"',
+      'end',
+    ]
+
+    cmd_cmdtest do
+      stdout_equal [
+        "### ok ascii",
+        "### ok utf8",
+      ]
+    end
+  end
+
+  def test_output_encoding_UTF8_DOBLOCK
+    create_CMDTEST_foo [
+      'cmd "echo.rb räksmörgås" do',
+      '    comment "ok in doblock"',
+      '    output_encoding "utf-8" do',
+      '        stdout_equal "räksmörgås\n"',
+      '    end',
+      'end',
+      'cmd "echo.rb räksmörgås" do',
+      '    comment "error outside doblock"',
+      '    stdout_equal "räksmörgås\n"',
+      'end',
+    ]
+
+    cmd_cmdtest do
+      stdout_equal [
+        "### ok in doblock",
+        "### error outside doblock",
+        "--- ERROR: unexpected encoding: STDOUT not 'ascii'",
+      ]
+      exit_nonzero
+    end
+  end
+
+
+end