micro: rewrite options to support multiple building blocks

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

register/extractor_test.go

@@ -0,0 +1,63 @@
+package register
+
+import (
+	"context"
+	"reflect"
+	"testing"
+)
+
+type TestHandler struct{}
+
+type TestRequest struct{}
+
+type TestResponse struct{}
+
+func (t *TestHandler) Test(ctx context.Context, req *TestRequest, rsp *TestResponse) error {
+	return nil
+}
+
+func TestExtractEndpoint(t *testing.T) {
+	handler := &TestHandler{}
+	typ := reflect.TypeOf(handler)
+
+	var endpoints []*Endpoint
+
+	for m := 0; m < typ.NumMethod(); m++ {
+		if e := ExtractEndpoint(typ.Method(m)); e != nil {
+			endpoints = append(endpoints, e)
+		}
+	}
+
+	if i := len(endpoints); i != 1 {
+		t.Fatalf("Expected 1 endpoint, have %d", i)
+	}
+
+	if endpoints[0].Name != "Test" {
+		t.Fatalf("Expected handler Test, got %s", endpoints[0].Name)
+	}
+
+	if endpoints[0].Request == nil {
+		t.Fatal("Expected non nil Request")
+	}
+
+	if endpoints[0].Response == nil {
+		t.Fatal("Expected non nil Request")
+	}
+
+	if endpoints[0].Request.Name != "TestRequest" {
+		t.Fatalf("Expected TestRequest got %s", endpoints[0].Request.Name)
+	}
+
+	if endpoints[0].Response.Name != "TestResponse" {
+		t.Fatalf("Expected TestResponse got %s", endpoints[0].Response.Name)
+	}
+
+	if endpoints[0].Request.Type != "TestRequest" {
+		t.Fatalf("Expected TestRequest type got %s", endpoints[0].Request.Type)
+	}
+
+	if endpoints[0].Response.Type != "TestResponse" {
+		t.Fatalf("Expected TestResponse type got %s", endpoints[0].Response.Type)
+	}
+
+}