Add tests

Fix lint target in Makefile

Makefile

@@ -143,7 +143,7 @@ integration-tests-full-ci: install-test-deps integration-cleanup
 
 lint: format ## Runs all linters and formatters
 	@echo "Running linters..."
-	golangci-lint run --exclude-dirs cf --exclude-dirs fixtures --exclude-dirs plugin --exclude-dirs command/plugin
+	golangci-lint run --skip-dirs cf --skip-dirs fixtures --skip-dirs plugin --skip-dirs command/plugin
 	@echo "No lint errors!"
 
 # TODO: version specific tagging for all these builds
@@ -163,10 +163,10 @@ out/cf-cli_linux_i686: $(GOSRC)
 							$(REQUIRED_FOR_STATIC_BINARY) \
 							-ldflags "$(LD_FLAGS_LINUX)" -o out/cf-cli_linux_i686 .
 
-out/cf-cli_linux_x86-64: $(GOSRC)
-	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build \
-							$(REQUIRED_FOR_STATIC_BINARY) \
-							-ldflags "$(LD_FLAGS_LINUX)" -o out/cf-cli_linux_x86-64 .
+# lint: $(GOSRC)
+# 	CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build \
+# 							$(REQUIRED_FOR_STATIC_BINARY) \
+# 							-ldflags "$(LD_FLAGS_LINUX)" -o out/cf-cli_linux_x86-64 .
 
 out/cf-cli_linux_arm64: $(GOSRC)
 	CGO_ENABLED=0 GOARCH=arm64 GOOS=linux go build \

api/cloudcontroller/ccv3/request.go

@@ -3,6 +3,7 @@ package ccv3
 import (
 	"io"
 	"net/http"
+	"strings"
 
 	"code.cloudfoundry.org/cli/api/cloudcontroller"
 	"code.cloudfoundry.org/cli/api/cloudcontroller/ccv3/internal"
@@ -57,6 +58,7 @@ func (requester *RealRequester) newHTTPRequest(passedRequest requestOptions) (*c
 	}
 
 	request.Header = http.Header{}
+
 	if passedRequest.Header != nil {
 		request.Header = passedRequest.Header
 	}
@@ -69,9 +71,15 @@ func (requester *RealRequester) newHTTPRequest(passedRequest requestOptions) (*c
 		request.Header.Set("Accept", "application/json")
 	}
 
-	if passedRequest.RequestName != internal.GetDropletBitsRequest && request.Header.Get("Content-Type") == "" {
+	if !isDownloadDroplet(passedRequest.URL, passedRequest.RequestName) && request.Header.Get("Content-Type") == "" {
 		request.Header.Set("Content-Type", "application/json")
+	} else if isDownloadDroplet(passedRequest.URL, passedRequest.RequestName) && request.Header.Get("Content-Type") != "" {
+		request.Header.Del("Content-Type")
 	}
 
 	return cloudcontroller.NewRequest(request, passedRequest.Body), nil
 }
+
+func isDownloadDroplet(URL string, requestName string) bool {
+	return (strings.Contains(URL, "droplet") && strings.Contains(URL, "download")) || (requestName == internal.GetDropletBitsRequest)
+}

api/cloudcontroller/ccv3/requester.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"net/http"
 	"runtime"
-	"strings"
 
 	"code.cloudfoundry.org/cli/api/cloudcontroller"
 	"code.cloudfoundry.org/cli/api/cloudcontroller/ccv3/internal"
@@ -161,10 +160,6 @@ func (requester *RealRequester) MakeRequestSendReceiveRaw(
 		return nil, nil, err
 	}
 
-	if strings.Contains(URL, "droplet") && strings.Contains(URL, "download") {
-		request.Header.Del("Content-Type")
-	}
-
 	response := cloudcontroller.Response{}
 
 	err = requester.connection.Make(request, &response)

api/cloudcontroller/ccv3/requester_test.go

@@ -1069,6 +1069,10 @@ var _ = Describe("shared request helpers", func() {
 							CombineHandlers(
 								VerifyRequest(http.MethodGet, "/v3/apps/some-app-guid/manifest"),
 								VerifyHeaderKV("Accept", "application/x-yaml"),
+								func(w http.ResponseWriter, req *http.Request) {
+									// key := http.CanonicalHeaderKey("Content-Type")
+									Expect(req.Header).To(HaveKey("Content-Type"), "Header Content-Type is not present")
+								},
 								RespondWith(
 									http.StatusOK,
 									expectedResponseBody,
@@ -1134,6 +1138,31 @@ var _ = Describe("shared request helpers", func() {
 				})
 			})
 		})
+
+		Context("Download a droplet", func() {
+			BeforeEach(func() {
+				requestName = internal.GetDropletBitsRequest
+				uriParams = internal.Params{"droplet_guid": "some-droplet-guid"}
+			})
+
+			When("The server returns an unauthorized error", func() {
+				BeforeEach(func() {
+					server.AppendHandlers(
+						CombineHandlers(
+							VerifyRequest(http.MethodGet, "/v3/droplets/some-droplet-guid/download"),
+							func(w http.ResponseWriter, req *http.Request) {
+								Expect(req.Header).NotTo(HaveKey("Content-Type"), "Header Content-Type is present")
+							},
+							RespondWith(http.StatusUnauthorized, "", http.Header{}),
+						),
+					)
+				})
+
+				It("fails", func() {
+					Expect(executeErr).To(HaveOccurred())
+				})
+			})
+		})
 	})
 
 	Describe("MakeRequestSendRaw", func() {