Add ProxyRawPath tests

Refactor proxy_test to set mux/upstream options for each test
individually and add tests for encoded urls with ProxyRawPath set and
unset.

pkg/upstream/proxy_test.go

@@ -16,10 +16,16 @@ import (
 )
 
 var _ = Describe("Proxy Suite", func() {
-	var upstreamServer http.Handler
+	type proxyTableInput struct {
+		target    string
+		response  testHTTPResponse
+		upstream  string
+		upstreams options.Upstreams
+	}
 
 	Context("multiUpstreamProxy", func() {
-		BeforeEach(func() {
+		DescribeTable("Proxy ServeHTTP",
+			func(in *proxyTableInput) {
 				sigData := &options.SignatureData{Hash: crypto.SHA256, Key: "secret"}
 
 				writer := &pagewriter.WriterFuncs{
@@ -32,8 +38,10 @@ var _ = Describe("Proxy Suite", func() {
 				ok := http.StatusOK
 				accepted := http.StatusAccepted
 
-			upstreams := options.Upstreams{
-				Configs: []options.Upstream{
+				// Allows for specifying settings and even individual upstreams for specific tests and uses the default upstreams/configs otherwise
+				upstreams := in.upstreams
+				if len(in.upstreams.Configs) == 0 {
+					upstreams.Configs = []options.Upstream{
 						{
 							ID:   "http-backend",
 							Path: "/http/",
@@ -90,22 +98,12 @@ var _ = Describe("Proxy Suite", func() {
 							RewriteTarget: "/double-match/rewrite/$1",
 							URI:           serverAddr,
 						},
-				},
+					}
 				}
 
-			var err error
-			upstreamServer, err = NewProxy(upstreams, sigData, writer)
+				upstreamServer, err := NewProxy(upstreams, sigData, writer)
 				Expect(err).ToNot(HaveOccurred())
-		})
 
-		type proxyTableInput struct {
-			target   string
-			response testHTTPResponse
-			upstream string
-		}
-
-		DescribeTable("Proxy ServeHTTP",
-			func(in *proxyTableInput) {
 				req := middlewareapi.AddRequestScope(
 					httptest.NewRequest("", in.target, nil),
 					&middlewareapi.RequestScope{},
@@ -133,10 +131,12 @@ var _ = Describe("Proxy Suite", func() {
 				}
 
 				// Compare the reflected request to the upstream
+				if body != nil {
 					request := testHTTPRequest{}
 					Expect(json.Unmarshal(body, &request)).To(Succeed())
 					testSanitizeRequestHeader(request.Header)
 					Expect(request).To(Equal(in.response.request))
+				}
 			},
 			Entry("with a request to the HTTP service", &proxyTableInput{
 				target: "http://example.localhost/http/1234",
@@ -312,6 +312,31 @@ var _ = Describe("Proxy Suite", func() {
 				},
 				upstream: "double-match-rewrite",
 			}),
+			Entry("containing an escaped '/' without ProxyRawPath", &proxyTableInput{
+				target: "http://example.localhost/%2F/test1/%2F/test2",
+				response: testHTTPResponse{
+					code: 301,
+					header: map[string][]string{
+						"Location": {
+							"http://example.localhost/test1/test2",
+						},
+					},
+				},
+				upstream: "",
+			}),
+			Entry("containing an escaped '/' with ProxyRawPath", &proxyTableInput{
+				upstreams: options.Upstreams{ProxyRawPath: true},
+				target:    "http://example.localhost/%2F/test1/%2F/test2",
+				response: testHTTPResponse{
+					code: 404,
+					header: map[string][]string{
+						"X-Content-Type-Options": {"nosniff"},
+						contentType:              {textPlainUTF8},
+					},
+					raw: "404 page not found\n",
+				},
+				upstream: "",
+			}),
 		)
 	})
 
@@ -321,24 +346,24 @@ var _ = Describe("Proxy Suite", func() {
 			expectedOutput []options.Upstream
 		}
 
-		var httpPath = options.Upstream{
+		httpPath := options.Upstream{
 			Path: "/http/",
 		}
 
-		var httpSubPath = options.Upstream{
+		httpSubPath := options.Upstream{
 			Path: "/http/subpath/",
 		}
 
-		var longerPath = options.Upstream{
+		longerPath := options.Upstream{
 			Path: "/longer-than-http",
 		}
 
-		var shortPathWithRewrite = options.Upstream{
+		shortPathWithRewrite := options.Upstream{
 			Path:          "^/h/(.*)",
 			RewriteTarget: "/$1",
 		}
 
-		var shortSubPathWithRewrite = options.Upstream{
+		shortSubPathWithRewrite := options.Upstream{
 			Path:          "^/h/bar/(.*)",
 			RewriteTarget: "/$1",
 		}