Make DefaultSystemView StaticSystemView with statically-configured information. Export this from Framework to make it easy to override for testing.

logical/framework/backend.go

@@ -56,10 +56,13 @@ type Backend struct {
 	// See the built-in AuthRenew helpers in lease.go for common callbacks.
 	AuthRenew OperationFunc
 
-	logger    *log.Logger
-	once      sync.Once
-	pathsRe   []*regexp.Regexp
-	sysconfig logical.SystemView
+	// System provides an interface to access certain system configuration
+	// information, such as globally configured default and max lease TTLs.
+	System logical.SystemView
+
+	logger  *log.Logger
+	once    sync.Once
+	pathsRe []*regexp.Regexp
 }
 
 // OperationFunc is the callback called for an operation on a path.
@@ -143,7 +146,7 @@ func (b *Backend) SpecialPaths() *logical.Paths {
 // Setup is used to initialize the backend with the initial backend configuration
 func (b *Backend) Setup(config *logical.BackendConfig) (logical.Backend, error) {
 	b.logger = config.Logger
-	b.sysconfig = config.System
+	b.System = config.System
 	return b, nil
 }
 
@@ -157,13 +160,6 @@ func (b *Backend) Logger() *log.Logger {
 	return log.New(ioutil.Discard, "", 0)
 }
 
-// SystemConfig can be used to get an object that provides methods for
-// looking up some system configuration information, such as the global
-// max lease.
-func (b *Backend) SystemConfig() logical.SystemView {
-	return b.sysconfig
-}
-
 // Route looks up the path that would be used for a given path string.
 func (b *Backend) Route(path string) *Path {
 	result, _ := b.route(path)