Add compatibility test

Author: datacharmer

test_versions.sh

@@ -0,0 +1,93 @@
+#!/usr/bin/env bash
+
+# Tests that the employees database can work with all versions of MySQL
+# 
+# Requires dbdeployer to be installed and configured (https://www.dbdeployer.com)
+
+function found_in_path {
+    name=$1
+    for dir in $(echo $PATH | tr ':' ' ')
+    do
+        if [ -x $dir/$name ]
+        then
+            echo $dir/$name
+            return
+        fi
+    done
+}
+
+
+function check_exit_code {
+    exit_code=$?
+    if [ "$exit_code" != "0" ]
+    then
+        echo "Execution error"
+        exit $exit_code
+    fi
+}
+
+dbdeployer=$(found_in_path dbdeployer)
+
+if [ -z "$dbdeployer" ]
+then
+    echo "dbdeployer not found in \$PATH"
+    exit 1
+fi
+
+[ -z "$SANDBOX_HOME" ] && SANDBOX_HOME=$HOME/sandboxes
+
+for short_version in 5.0 5.1 5.5 5.6 5.7 8.0
+do
+    version=$($dbdeployer info version $short_version)
+    if [ -z "$version" ]
+    then
+        continue
+    fi
+    echo "### -------------------"
+    echo "### $version"
+    echo "### -------------------"
+    ver_name=$(echo $version | tr '.' '_')
+    
+    $dbdeployer deploy single $version
+    check_exit_code
+
+    msb=$SANDBOX_HOME/msb_$ver_name
+
+    if [ ! -d $msb ]
+    then
+        echo "'$msb' not found or not a directory - Halting test"
+        exit 1
+    fi
+
+    $msb/use < employees.sql 
+    check_exit_code
+    echo "Testing MD5"
+    $msb/use -t < test_employees_md5.sql >  /tmp/test_md5.txt
+    md5_ok=$(grep -iw ok /tmp/test_md5.txt | wc -l | tr -d ' \t')
+
+    if [ "$md5_ok" == "8" ]
+    then
+        echo "MD5 OK - $md5_ok"
+    else
+        echo "MD5 FAIL - expected 8 - found $md5_ok"
+        cat /tmp/test_md5.txt
+        exit 1
+    fi
+
+    echo "Testing SHA"
+    $msb/use -t < test_employees_sha.sql >  /tmp/test_sha.txt
+    sha_ok=$(grep -iw ok /tmp/test_sha.txt | wc -l | tr -d ' \t')
+    if [ "$sha_ok" == "8" ]
+    then
+        echo "SHA OK - $sha_ok"
+    else
+        echo "SHA FAIL - expected 8 - found $sha_ok"
+        cat /tmp/test_sha.txt
+        exit 1
+    fi
+
+    $dbdeployer delete msb_$ver_name
+    check_exit_code
+
+done
+