HandlerのAnnouncementのテスト実装

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/joho/godotenv v1.5.1
 	github.com/oapi-codegen/gin-middleware v1.0.2
 	github.com/oapi-codegen/runtime v1.1.2
+	github.com/stretchr/testify v1.11.1
 	google.golang.org/api v0.231.0
 )
 
@@ -34,6 +35,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cloudwego/base64x v0.1.6 // indirect
 	github.com/cncf/xds/go v0.0.0-20250501225837-2ac532fd4443 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dprotaso/go-yit v0.0.0-20220510233725-9ba8df137936 // indirect
 	github.com/envoyproxy/go-control-plane/envoy v1.32.4 // indirect
 	github.com/envoyproxy/protoc-gen-validate v1.2.1 // indirect
@@ -72,6 +74,7 @@ require (
 	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
 	github.com/perimeterx/marshmallow v1.1.5 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/quic-go/qpack v0.5.1 // indirect
 	github.com/quic-go/quic-go v0.55.0 // indirect
 	github.com/rogpeppe/go-internal v1.14.1 // indirect

internal/handler/announcement.go

@@ -78,6 +78,7 @@ func (h *Handler) AnnouncementsV1Delete(c *gin.Context, id string) {
 	}
 
 	c.Status(http.StatusNoContent)
+	c.Writer.WriteHeaderNow()
 }
 
 // AnnouncementsV1Update 更新する