Adding a new Preparer for the MERGE header

autorest/preparer.go

@@ -191,6 +191,9 @@ func AsGet() PrepareDecorator { return WithMethod("GET") }
 // AsHead returns a PrepareDecorator that sets the HTTP method to HEAD.
 func AsHead() PrepareDecorator { return WithMethod("HEAD") }
 
+// AsMerge returns a PrepareDecorator that sets the HTTP method to MERGE.
+func AsMerge() PrepareDecorator { return WithMethod("MERGE") }
+
 // AsOptions returns a PrepareDecorator that sets the HTTP method to OPTIONS.
 func AsOptions() PrepareDecorator { return WithMethod("OPTIONS") }
 

autorest/preparer_test.go

@@ -468,6 +468,13 @@ func TestAsHead(t *testing.T) {
 	}
 }
 
+func TestAsMerge(t *testing.T) {
+	r, _ := Prepare(mocks.NewRequest(), AsMerge())
+	if r.Method != "MERGE" {
+		t.Fatal("autorest: AsMerge failed to set HTTP method header to MERGE")
+	}
+}
+
 func TestAsOptions(t *testing.T) {
 	r, _ := Prepare(mocks.NewRequest(), AsOptions())
 	if r.Method != "OPTIONS" {