Dynamic Configuration Refactoring

old/middlewares/stripPrefixRegex_test.go

@@ -0,0 +1,97 @@
+package middlewares
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/containous/traefik/testhelpers"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestStripPrefixRegex(t *testing.T) {
+	testPrefixRegex := []string{"/a/api/", "/b/{regex}/", "/c/{category}/{id:[0-9]+}/"}
+
+	tests := []struct {
+		path               string
+		expectedStatusCode int
+		expectedPath       string
+		expectedRawPath    string
+		expectedHeader     string
+	}{
+		{
+			path:               "/a/test",
+			expectedStatusCode: http.StatusNotFound,
+		},
+		{
+			path:               "/a/api/test",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "test",
+			expectedHeader:     "/a/api/",
+		},
+		{
+			path:               "/b/api/",
+			expectedStatusCode: http.StatusOK,
+			expectedHeader:     "/b/api/",
+		},
+		{
+			path:               "/b/api/test1",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "test1",
+			expectedHeader:     "/b/api/",
+		},
+		{
+			path:               "/b/api2/test2",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "test2",
+			expectedHeader:     "/b/api2/",
+		},
+		{
+			path:               "/c/api/123/",
+			expectedStatusCode: http.StatusOK,
+			expectedHeader:     "/c/api/123/",
+		},
+		{
+			path:               "/c/api/123/test3",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "test3",
+			expectedHeader:     "/c/api/123/",
+		},
+		{
+			path:               "/c/api/abc/test4",
+			expectedStatusCode: http.StatusNotFound,
+		},
+		{
+			path:               "/a/api/a%2Fb",
+			expectedStatusCode: http.StatusOK,
+			expectedPath:       "a/b",
+			expectedRawPath:    "a%2Fb",
+			expectedHeader:     "/a/api/",
+		},
+	}
+
+	for _, test := range tests {
+		test := test
+		t.Run(test.path, func(t *testing.T) {
+			t.Parallel()
+
+			var actualPath, actualRawPath, actualHeader string
+			handlerPath := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				actualPath = r.URL.Path
+				actualRawPath = r.URL.RawPath
+				actualHeader = r.Header.Get(ForwardedPrefixHeader)
+			})
+			handler := NewStripPrefixRegex(handlerPath, testPrefixRegex)
+
+			req := testhelpers.MustNewRequest(http.MethodGet, "http://localhost"+test.path, nil)
+			resp := &httptest.ResponseRecorder{Code: http.StatusOK}
+
+			handler.ServeHTTP(resp, req)
+
+			assert.Equal(t, test.expectedStatusCode, resp.Code, "Unexpected status code.")
+			assert.Equal(t, test.expectedPath, actualPath, "Unexpected path.")
+			assert.Equal(t, test.expectedRawPath, actualRawPath, "Unexpected raw path.")
+			assert.Equal(t, test.expectedHeader, actualHeader, "Unexpected '%s' header.", ForwardedPrefixHeader)
+		})
+	}
+}