From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/test/win32ole/test_nil2vtempty.rb | 36 ++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 jni/ruby/test/win32ole/test_nil2vtempty.rb

(limited to 'jni/ruby/test/win32ole/test_nil2vtempty.rb')

diff --git a/jni/ruby/test/win32ole/test_nil2vtempty.rb b/jni/ruby/test/win32ole/test_nil2vtempty.rb
new file mode 100644
index 0000000..8508ecd
--- /dev/null
+++ b/jni/ruby/test/win32ole/test_nil2vtempty.rb
@@ -0,0 +1,36 @@
+# This is test script to check that WIN32OLE should convert nil to VT_EMPTY in second try.
+# [ruby-talk:137054]
+begin
+  require 'win32ole'
+rescue LoadError
+end
+require 'test/unit'
+
+if defined?(WIN32OLE)
+  class TestNIL2VT_EMPTY < Test::Unit::TestCase
+    def setup
+      fs = WIN32OLE.new('Scripting.FileSystemObject')
+      @path = fs.GetFolder(".").path
+    end
+    def test_openSchema
+      con = nil
+      begin
+        con = WIN32OLE.new('ADODB.Connection')
+        con.connectionString = "Provider=MSDASQL;Extended Properties="
+        con.connectionString +="\"DRIVER={Microsoft Text Driver (*.txt; *.csv)};DBQ=#{@path}\""
+        con.open
+      rescue
+        con = nil
+      end
+      if con
+        rs = con.openSchema(4, [nil,nil,"DUMMY", "TABLE"])
+        assert(rs)
+        assert_equal("_Recordset", rs.ole_type.name)
+
+        rs = con.openSchema(4, [WIN32OLE_VARIANT::Empty, WIN32OLE_VARIANT::Empty, "DUMMY", "TABLE"])
+        assert(rs)
+        assert_equal("_Recordset", rs.ole_type.name)
+      end
+    end
+  end
+end
-- 
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