chore: import upstream snapshot with attribution

cmd/protoc-gen-micro/plugin/micro/micro_test.go

@@ -0,0 +1,37 @@
+package micro
+
+import "testing"
+
+func TestParseModelOptions(t *testing.T) {
+	tests := []struct {
+		comment   string
+		wantTable string
+		wantKey   string
+	}{
+		{" @model\n", "", ""},
+		{" @model(table=app_users)\n", "app_users", ""},
+		{" @model(key=user_id)\n", "", "user_id"},
+		{" @model(table=users, key=user_id)\n", "users", "user_id"},
+		{" some description\n @model(table=items)\n", "items", ""},
+		{" no annotation here\n", "", ""},
+	}
+
+	for _, tt := range tests {
+		table, key := parseModelOptions(tt.comment)
+		if table != tt.wantTable {
+			t.Errorf("parseModelOptions(%q): table = %q, want %q", tt.comment, table, tt.wantTable)
+		}
+		if key != tt.wantKey {
+			t.Errorf("parseModelOptions(%q): key = %q, want %q", tt.comment, key, tt.wantKey)
+		}
+	}
+}
+
+func TestProtoFieldGoType(t *testing.T) {
+	// Smoke test - just verify it doesn't panic with nil
+	typ := protoFieldGoType(nil)
+	if typ != "string" {
+		// nil field returns default based on zero value TYPE_DOUBLE=0
+		t.Logf("protoFieldGoType(nil) = %q", typ)
+	}
+}