1 files changed, 28 insertions, 0 deletions
diff --git a/spec/support/guards.rb b/spec/support/guards.rb
new file mode 100644
index 0000000000..cfa4b7b79a
--- /dev/null
+++ b/spec/support/guards.rb
@@ -0,0 +1,28 @@
+module AdapterGuards
+  def adapter_is(*names)
+    names = names.map(&:to_s)
+    names.each{|name| verify_adapter_name(name)}
+    yield if names.include? adapter_name
+  end
+
+  def adapter_is_not(*names)
+    names = names.map(&:to_s)
+    names.each{|name| verify_adapter_name(name)}
+    yield unless names.include? adapter_name
+  end
+
+  def adapter_name
+    name = ActiveRecord::Base.configurations["unit"][:adapter]
+    name = 'oracle' if name == 'oracle_enhanced'
+    verify_adapter_name(name)
+    name
+  end
+
+  def verify_adapter_name(name)
+    raise "Invalid adapter name: #{name}" unless valid_adapters.include?(name.to_s)
+  end
+
+  def valid_adapters
+    %w[mysql postgresql sqlite3 oracle]
+  end
+end
+\ No newline at end of file