From 22393503487163f9fbffe1f2169d156ba2b8c0fa Mon Sep 17 00:00:00 2001
From: take_cheeze <takechi101010@gmail.com>
Date: Fri, 28 Mar 2014 13:02:52 +0900
Subject: Add test for backquote. * Implement code generation of NODE_DXSTR. *
 Fix NOVAL NODE_XSTR.

---
 test/t/syntax.rb | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'test/t')

diff --git a/test/t/syntax.rb b/test/t/syntax.rb
index 3569193bc..fac73aa7b 100644
--- a/test/t/syntax.rb
+++ b/test/t/syntax.rb
@@ -226,3 +226,31 @@ assert('splat in case statement') do
   assert_equal [5], resultb
   assert_equal [3,8], resultc
 end
+
+assert('External command execution.') do
+  class << Kernel
+    sym = '`'.to_sym
+    alias_method :old_cmd, sym
+
+    results = []
+    define_method(sym) do |str|
+      results.push str
+      str
+    end
+
+    `test` # NOVAL NODE_XSTR
+    `test dynamic #{sym}` # NOVAL NODE_DXSTR
+    assert_equal ['test', 'test dynamic `'], results
+
+    t = `test` # VAL NODE_XSTR
+    assert_equal 'test', t
+    assert_equal ['test', 'test dynamic `', 'test'], results
+
+    t = `test dynamic #{sym}` # VAL NODE_DXSTR
+    assert_equal 'test dynamic `', t
+    assert_equal ['test', 'test dynamic `', 'test', 'test dynamic `'], results
+
+    alias_method sym, :old_cmd
+  end
+  true
+end
-- 
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