Improve build script

.travis.yml

@@ -4,17 +4,11 @@ dist: xenial
 solution: CAP.sln
 dotnet: 3.1.100
 mono: none
+env:
+ - Cap_MySql_ConnectionString="Server=127.0.0.1;Database=cap_test;Uid=root;Pwd=;Allow User Variables=True;SslMode=none"
 
-#matrix:
-#  include:
-#  - dotnet: 2.2
-#  - os: linux
-#    dist: trusty # Ubuntu 14.04
-#    sudo: required
-#  - os: osx
-#    osx_image: xcode8.3 # macOS 10.12
-    
-# Run the build script
+services:
+ - mysql
 
 script:
  - export PATH="$PATH:$HOME/.dotnet/tools"

appveyor.yml

@@ -3,7 +3,7 @@ os: Visual Studio 2019
 environment:
   BUILDING_ON_PLATFORM: win
   BuildEnvironment: appveyor
-  Cap_MySql_ConnectionStringTemplate: Server=localhost;Database={0};Uid=root;Pwd=Password12!;Allow User Variables=True;SslMode=none
+  Cap_MySql_ConnectionString: Server=localhost;Database=cap_test;Uid=root;Pwd=Password12!;Allow User Variables=True;SslMode=none
 services:
   - mysql
 before_build:

test/DotNetCore.CAP.MySql.Test/ConnectionUtil.cs

@@ -5,35 +5,29 @@ namespace DotNetCore.CAP.MySql.Test
 {
     public static class ConnectionUtil
     {
-        private const string DatabaseVariable = "Cap_MySql_DatabaseName";
-        private const string ConnectionStringTemplateVariable = "Cap_MySql_ConnectionStringTemplate";
+        private const string ConnectionStringTemplateVariable = "Cap_MySql_ConnectionString";
 
         private const string MasterDatabaseName = "information_schema";
-        private const string DefaultDatabaseName = @"DotNetCore.CAP.MySql.Test";
+        private const string DefaultDatabaseName = "cap_test";
 
-        private const string DefaultConnectionStringTemplate =
-            @"Server=localhost;Database={0};Uid=root;Pwd=123123;Allow User Variables=True;SslMode=none;";
+        private const string DefaultConnectionString =
+            @"Server=localhost;Database=cap_test;Uid=root;Pwd=123123;Allow User Variables=True;SslMode=none;";
 
         public static string GetDatabaseName()
         {
-            return Environment.GetEnvironmentVariable(DatabaseVariable) ?? DefaultDatabaseName;
+            return DefaultDatabaseName;
         }
 
         public static string GetMasterConnectionString()
         {
-            return string.Format(GetConnectionStringTemplate(), MasterDatabaseName);
+            return GetConnectionString().Replace(DefaultDatabaseName, MasterDatabaseName);
         }
 
         public static string GetConnectionString()
-        {
-            return string.Format(GetConnectionStringTemplate(), GetDatabaseName());
-        }
-
-        private static string GetConnectionStringTemplate()
         {
             return
                 Environment.GetEnvironmentVariable(ConnectionStringTemplateVariable) ??
-                DefaultConnectionStringTemplate;
+                DefaultConnectionString;
         }
 
         public static MySqlConnection CreateConnection(string connectionString = null)