Added test case 1007 to test permission problem when uploading with TFTP

(to validate bug #1790403).

tests/data/test1007

@@ -0,0 +1,39 @@
+<testcase>
+<info>
+<keywords>
+TFTP
+TFTP WRQ
+FAILURE
+</keywords>
+</info>
+
+#
+# Client-side
+<client>
+<server>
+tftp
+</server>
+ <name>
+TFTP send with invalid permission on server
+ </name>
+ <command>
+-T log/test1007.txt tftp://%HOSTIP:%TFTPPORT//invalid-file --trace-ascii log/traceit
+</command>
+<file name="log/test1007.txt">
+This data will not be sent
+</file>
+</client>
+
+#
+# Verify pseudo protocol after the test has been "shot"
+<verify>
+<errorcode>
+69
+</errorcode>
+<protocol>
+opcode: 2
+filename: /invalid-file
+mode: octet
+</protocol>
+</verify>
+</testcase>