From 51942b7efe09da2dfab08a43f5bae9c3e32245e8 Mon Sep 17 00:00:00 2001
From: unknown <msvensson@neptunus.(none)>
Date: Fri, 19 Jan 2007 15:43:21 +0100
Subject: [PATCH] Add test's from Matthias for assigning one variable from
 another using let

---
 mysql-test/r/mysqltest.result |  9 +++++++++
 mysql-test/t/mysqltest.test   | 30 ++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/mysql-test/r/mysqltest.result b/mysql-test/r/mysqltest.result
index 12a35fcf48b..e1ebed8cacd 100644
--- a/mysql-test/r/mysqltest.result
+++ b/mysql-test/r/mysqltest.result
@@ -269,6 +269,15 @@ mysqltest: At line 1: Missing assignment operator in let
 1
 # Execute: echo $success ;
 1 
+# Check if let $B = $A is an assignment per value.
+let $A = initial value of A;
+let $B = initial value of B;
+let $B = $A
+# Content of $A is: initial value of B
+let $A = changed value of A;
+# Content of $B is: initial value of B
+let $B = changed value of B;
+# Content of $A is: changed value of A
 mysqltest: At line 1: Missing required argument 'filename' to command 'source'
 mysqltest: At line 1: Could not open file ./non_existingFile
 mysqltest: In included file "MYSQLTEST_VARDIR/tmp/recursive.sql": At line 1: Source directives are nesting too deep
diff --git a/mysql-test/t/mysqltest.test b/mysql-test/t/mysqltest.test
index 7da84543e6d..e0d5591fc4f 100644
--- a/mysql-test/t/mysqltest.test
+++ b/mysql-test/t/mysqltest.test
@@ -688,6 +688,36 @@ echo # <whatever> success: $success ;
 --echo # Execute: echo \$success ;
 echo $success ;
 
+
+# ----------------------------------------------------------------------------
+# Test to assign let from variable
+# let $<var_name>=$<var_name>;
+# ----------------------------------------------------------------------------
+
+--echo # Check if let \$B = \$A is an assignment per value.
+
+# Basic preparations:
+--echo let \$A = initial value of A;
+let $A = initial value of A;
+# --echo # Content of \$A is: $A
+--echo let \$B = initial value of B;
+let $B = initial value of B;
+# --echo # Content of \$B is: $B
+
+# Assign $B to $A:
+--echo let \$B = \$A
+let $A = $B;
+--echo # Content of \$A is: $A
+
+# Changes of $B must NOT affect $A and Changes of $A must NOT affect $B !
+--echo let \$A = changed value of A;
+let $A = changed value of A;
+--echo # Content of \$B is: $B
+
+--echo let \$B = changed value of B;
+let $B = changed value of B;
+--echo # Content of \$A is: $A
+
 # ----------------------------------------------------------------------------
 # Test to assign let from query
 # let $<var_name>=`<query>`;