From e8b06173446743c96081d0e84d6a3cb25936efb0 Mon Sep 17 00:00:00 2001
From: utilum <oz@utilum.com>
Date: Sun, 27 Nov 2016 12:41:15 +0100
Subject: [PATCH] test, don't connect to mysql when running sqlite3 tests.

This resolves the following error:

gem 'mysql'rescue in spec'
    /home/oz/code/rails/activerecord/lib/active_record/connection_adapters/connection_specification.rb:174:in establish_connection'
    /home/oz/code/rails/activerecord/test/cases/invalid_connection_test.rb:12:in
---
 .../test/cases/invalid_connection_test.rb     | 38 ++++++++++---------
 1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/activerecord/test/cases/invalid_connection_test.rb b/activerecord/test/cases/invalid_connection_test.rb
index 8416c81f45696..af0cf2a5261ae 100644
--- a/activerecord/test/cases/invalid_connection_test.rb
+++ b/activerecord/test/cases/invalid_connection_test.rb
@@ -1,22 +1,24 @@
 require "cases/helper"
 
-class TestAdapterWithInvalidConnection < ActiveRecord::TestCase
-  self.use_transactional_fixtures = false
-
-  class Bird < ActiveRecord::Base
-  end
-
-  def setup
-    # Can't just use current adapter; sqlite3 will create a database
-    # file on the fly.
-    Bird.establish_connection adapter: 'mysql', database: 'i_do_not_exist'
-  end
-
-  teardown do
-    Bird.remove_connection
-  end
-
-  test "inspect on Model class does not raise" do
-    assert_equal "#{Bird.name} (call '#{Bird.name}.connection' to establish a connection)", Bird.inspect
+if current_adapter?(:MysqlAdapter)
+  class TestAdapterWithInvalidConnection < ActiveRecord::TestCase
+    self.use_transactional_fixtures = false
+  
+    class Bird < ActiveRecord::Base
+    end
+  
+    def setup
+      # Can't just use current adapter; sqlite3 will create a database
+      # file on the fly.
+      Bird.establish_connection adapter: 'mysql', database: 'i_do_not_exist'
+    end
+  
+    teardown do
+      Bird.remove_connection
+    end
+  
+    test "inspect on Model class does not raise" do
+      assert_equal "#{Bird.name} (call '#{Bird.name}.connection' to establish a connection)", Bird.inspect
+    end
   end
 end