TUN-528: Move cloudflared into a separate repo

vendor/github.com/mholt/caddy/caddyhttp/errors/errors.go

@@ -0,0 +1,164 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package errors implements an HTTP error handling middleware.
+package errors
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"runtime"
+	"strings"
+	"time"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func init() {
+	caddy.RegisterPlugin("errors", caddy.Plugin{
+		ServerType: "http",
+		Action:     setup,
+	})
+}
+
+// ErrorHandler handles HTTP errors (and errors from other middleware).
+type ErrorHandler struct {
+	Next             httpserver.Handler
+	GenericErrorPage string         // default error page filename
+	ErrorPages       map[int]string // map of status code to filename
+	Log              *httpserver.Logger
+	Debug            bool // if true, errors are written out to client rather than to a log
+}
+
+func (h ErrorHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) (int, error) {
+	defer h.recovery(w, r)
+
+	status, err := h.Next.ServeHTTP(w, r)
+
+	if err != nil {
+		errMsg := fmt.Sprintf("%s [ERROR %d %s] %v", time.Now().Format(timeFormat), status, r.URL.Path, err)
+		if h.Debug {
+			// Write error to response instead of to log
+			w.Header().Set("Content-Type", "text/plain; charset=utf-8")
+			w.WriteHeader(status)
+			fmt.Fprintln(w, errMsg)
+			return 0, err // returning 0 signals that a response has been written
+		}
+		h.Log.Println(errMsg)
+	}
+
+	if status >= 400 {
+		h.errorPage(w, r, status)
+		return 0, err
+	}
+
+	return status, err
+}
+
+// errorPage serves a static error page to w according to the status
+// code. If there is an error serving the error page, a plaintext error
+// message is written instead, and the extra error is logged.
+func (h ErrorHandler) errorPage(w http.ResponseWriter, r *http.Request, code int) {
+	// See if an error page for this status code was specified
+	if pagePath, ok := h.findErrorPage(code); ok {
+		// Try to open it
+		errorPage, err := os.Open(pagePath)
+		if err != nil {
+			// An additional error handling an error... <insert grumpy cat here>
+			h.Log.Printf("%s [NOTICE %d %s] could not load error page: %v",
+				time.Now().Format(timeFormat), code, r.URL.String(), err)
+			httpserver.DefaultErrorFunc(w, r, code)
+			return
+		}
+		defer errorPage.Close()
+
+		// Copy the page body into the response
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(code)
+		_, err = io.Copy(w, errorPage)
+
+		if err != nil {
+			// Epic fail... sigh.
+			h.Log.Printf("%s [NOTICE %d %s] could not respond with %s: %v",
+				time.Now().Format(timeFormat), code, r.URL.String(), pagePath, err)
+			httpserver.DefaultErrorFunc(w, r, code)
+		}
+
+		return
+	}
+
+	// Default error response
+	httpserver.DefaultErrorFunc(w, r, code)
+}
+
+func (h ErrorHandler) findErrorPage(code int) (string, bool) {
+	if pagePath, ok := h.ErrorPages[code]; ok {
+		return pagePath, true
+	}
+
+	if h.GenericErrorPage != "" {
+		return h.GenericErrorPage, true
+	}
+
+	return "", false
+}
+
+func (h ErrorHandler) recovery(w http.ResponseWriter, r *http.Request) {
+	rec := recover()
+	if rec == nil {
+		return
+	}
+
+	// Obtain source of panic
+	// From: https://gist.github.com/swdunlop/9629168
+	var name, file string // function name, file name
+	var line int
+	var pc [16]uintptr
+	n := runtime.Callers(3, pc[:])
+	for _, pc := range pc[:n] {
+		fn := runtime.FuncForPC(pc)
+		if fn == nil {
+			continue
+		}
+		file, line = fn.FileLine(pc)
+		name = fn.Name()
+		if !strings.HasPrefix(name, "runtime.") {
+			break
+		}
+	}
+
+	// Trim file path
+	delim := "/caddy/"
+	pkgPathPos := strings.Index(file, delim)
+	if pkgPathPos > -1 && len(file) > pkgPathPos+len(delim) {
+		file = file[pkgPathPos+len(delim):]
+	}
+
+	panicMsg := fmt.Sprintf("%s [PANIC %s] %s:%d - %v", time.Now().Format(timeFormat), r.URL.String(), file, line, rec)
+	if h.Debug {
+		// Write error and stack trace to the response rather than to a log
+		var stackBuf [4096]byte
+		stack := stackBuf[:runtime.Stack(stackBuf[:], false)]
+		httpserver.WriteTextResponse(w, http.StatusInternalServerError, fmt.Sprintf("%s\n\n%s", panicMsg, stack))
+	} else {
+		// Currently we don't use the function name, since file:line is more conventional
+		h.Log.Printf(panicMsg)
+		h.errorPage(w, r, http.StatusInternalServerError)
+	}
+}
+
+const timeFormat = "02/Jan/2006:15:04:05 -0700"

vendor/github.com/mholt/caddy/caddyhttp/errors/errors_test.go

@@ -0,0 +1,272 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package errors
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func TestErrors(t *testing.T) {
+	// create a temporary page
+	const content = "This is a error page"
+
+	path, err := createErrorPageFile("errors_test.html", content)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(path)
+
+	buf := bytes.Buffer{}
+	em := ErrorHandler{
+		ErrorPages: map[int]string{
+			http.StatusNotFound:  path,
+			http.StatusForbidden: "not_exist_file",
+		},
+		Log: httpserver.NewTestLogger(&buf),
+	}
+	_, notExistErr := os.Open("not_exist_file")
+
+	testErr := errors.New("test error")
+	tests := []struct {
+		next         httpserver.Handler
+		expectedCode int
+		expectedBody string
+		expectedLog  string
+		expectedErr  error
+	}{
+		{
+			next:         genErrorHandler(http.StatusOK, nil, "normal"),
+			expectedCode: http.StatusOK,
+			expectedBody: "normal",
+			expectedLog:  "",
+			expectedErr:  nil,
+		},
+		{
+			next:         genErrorHandler(http.StatusMovedPermanently, testErr, ""),
+			expectedCode: http.StatusMovedPermanently,
+			expectedBody: "",
+			expectedLog:  fmt.Sprintf("[ERROR %d %s] %v\n", http.StatusMovedPermanently, "/", testErr),
+			expectedErr:  testErr,
+		},
+		{
+			next:         genErrorHandler(http.StatusBadRequest, nil, ""),
+			expectedCode: 0,
+			expectedBody: fmt.Sprintf("%d %s\n", http.StatusBadRequest,
+				http.StatusText(http.StatusBadRequest)),
+			expectedLog: "",
+			expectedErr: nil,
+		},
+		{
+			next:         genErrorHandler(http.StatusNotFound, nil, ""),
+			expectedCode: 0,
+			expectedBody: content,
+			expectedLog:  "",
+			expectedErr:  nil,
+		},
+		{
+			next:         genErrorHandler(http.StatusForbidden, nil, ""),
+			expectedCode: 0,
+			expectedBody: fmt.Sprintf("%d %s\n", http.StatusForbidden,
+				http.StatusText(http.StatusForbidden)),
+			expectedLog: fmt.Sprintf("[NOTICE %d /] could not load error page: %v\n",
+				http.StatusForbidden, notExistErr),
+			expectedErr: nil,
+		},
+	}
+
+	req, err := http.NewRequest("GET", "/", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	for i, test := range tests {
+		em.Next = test.next
+		buf.Reset()
+		rec := httptest.NewRecorder()
+		code, err := em.ServeHTTP(rec, req)
+
+		if err != test.expectedErr {
+			t.Errorf("Test %d: Expected error %v, but got %v",
+				i, test.expectedErr, err)
+		}
+		if code != test.expectedCode {
+			t.Errorf("Test %d: Expected status code %d, but got %d",
+				i, test.expectedCode, code)
+		}
+		if body := rec.Body.String(); body != test.expectedBody {
+			t.Errorf("Test %d: Expected body %q, but got %q",
+				i, test.expectedBody, body)
+		}
+		if log := buf.String(); !strings.Contains(log, test.expectedLog) {
+			t.Errorf("Test %d: Expected log %q, but got %q",
+				i, test.expectedLog, log)
+		}
+	}
+}
+
+func TestVisibleErrorWithPanic(t *testing.T) {
+	const panicMsg = "I'm a panic"
+	eh := ErrorHandler{
+		ErrorPages: make(map[int]string),
+		Debug:      true,
+		Next: httpserver.HandlerFunc(func(w http.ResponseWriter, r *http.Request) (int, error) {
+			panic(panicMsg)
+		}),
+	}
+
+	req, err := http.NewRequest("GET", "/", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	rec := httptest.NewRecorder()
+
+	code, err := eh.ServeHTTP(rec, req)
+
+	if code != 0 {
+		t.Errorf("Expected error handler to return 0 (it should write to response), got status %d", code)
+	}
+	if err != nil {
+		t.Errorf("Expected error handler to return nil error (it should panic!), but got '%v'", err)
+	}
+
+	body := rec.Body.String()
+
+	if !strings.Contains(body, "[PANIC /] caddyhttp/errors/errors_test.go") {
+		t.Errorf("Expected response body to contain error log line, but it didn't:\n%s", body)
+	}
+	if !strings.Contains(body, panicMsg) {
+		t.Errorf("Expected response body to contain panic message, but it didn't:\n%s", body)
+	}
+	if len(body) < 500 {
+		t.Errorf("Expected response body to contain stack trace, but it was too short: len=%d", len(body))
+	}
+}
+
+func TestGenericErrorPage(t *testing.T) {
+	// create temporary generic error page
+	const genericErrorContent = "This is a generic error page"
+
+	genericErrorPagePath, err := createErrorPageFile("generic_error_test.html", genericErrorContent)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(genericErrorPagePath)
+
+	// create temporary error page
+	const notFoundErrorContent = "This is a error page"
+
+	notFoundErrorPagePath, err := createErrorPageFile("not_found.html", notFoundErrorContent)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.Remove(notFoundErrorPagePath)
+
+	buf := bytes.Buffer{}
+	em := ErrorHandler{
+		GenericErrorPage: genericErrorPagePath,
+		ErrorPages: map[int]string{
+			http.StatusNotFound: notFoundErrorPagePath,
+		},
+		Log: httpserver.NewTestLogger(&buf),
+	}
+
+	tests := []struct {
+		next         httpserver.Handler
+		expectedCode int
+		expectedBody string
+		expectedLog  string
+		expectedErr  error
+	}{
+		{
+			next:         genErrorHandler(http.StatusNotFound, nil, ""),
+			expectedCode: 0,
+			expectedBody: notFoundErrorContent,
+			expectedLog:  "",
+			expectedErr:  nil,
+		},
+		{
+			next:         genErrorHandler(http.StatusInternalServerError, nil, ""),
+			expectedCode: 0,
+			expectedBody: genericErrorContent,
+			expectedLog:  "",
+			expectedErr:  nil,
+		},
+	}
+
+	req, err := http.NewRequest("GET", "/", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for i, test := range tests {
+		em.Next = test.next
+		buf.Reset()
+		rec := httptest.NewRecorder()
+		code, err := em.ServeHTTP(rec, req)
+
+		if err != test.expectedErr {
+			t.Errorf("Test %d: Expected error %v, but got %v",
+				i, test.expectedErr, err)
+		}
+		if code != test.expectedCode {
+			t.Errorf("Test %d: Expected status code %d, but got %d",
+				i, test.expectedCode, code)
+		}
+		if body := rec.Body.String(); body != test.expectedBody {
+			t.Errorf("Test %d: Expected body %q, but got %q",
+				i, test.expectedBody, body)
+		}
+		if log := buf.String(); !strings.Contains(log, test.expectedLog) {
+			t.Errorf("Test %d: Expected log %q, but got %q",
+				i, test.expectedLog, log)
+		}
+	}
+}
+
+func genErrorHandler(status int, err error, body string) httpserver.Handler {
+	return httpserver.HandlerFunc(func(w http.ResponseWriter, r *http.Request) (int, error) {
+		if len(body) > 0 {
+			w.Header().Set("Content-Length", strconv.Itoa(len(body)))
+			fmt.Fprint(w, body)
+		}
+		return status, err
+	})
+}
+
+func createErrorPageFile(name string, content string) (string, error) {
+	errorPageFilePath := filepath.Join(os.TempDir(), name)
+	f, err := os.Create(errorPageFilePath)
+	if err != nil {
+		return "", err
+	}
+
+	_, err = f.WriteString(content)
+	if err != nil {
+		return "", err
+	}
+	f.Close()
+
+	return errorPageFilePath, nil
+}

vendor/github.com/mholt/caddy/caddyhttp/errors/setup.go

@@ -0,0 +1,134 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package errors
+
+import (
+	"log"
+	"os"
+	"path/filepath"
+	"strconv"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+// setup configures a new errors middleware instance.
+func setup(c *caddy.Controller) error {
+	handler, err := errorsParse(c)
+
+	if err != nil {
+		return err
+	}
+
+	handler.Log.Attach(c)
+
+	httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
+		handler.Next = next
+		return handler
+	})
+
+	return nil
+}
+
+func errorsParse(c *caddy.Controller) (*ErrorHandler, error) {
+
+	// Very important that we make a pointer because the startup
+	// function that opens the log file must have access to the
+	// same instance of the handler, not a copy.
+	handler := &ErrorHandler{
+		ErrorPages: make(map[int]string),
+		Log:        &httpserver.Logger{},
+	}
+
+	cfg := httpserver.GetConfig(c)
+
+	optionalBlock := func() error {
+		for c.NextBlock() {
+
+			what := c.Val()
+			where := c.RemainingArgs()
+
+			if httpserver.IsLogRollerSubdirective(what) {
+				var err error
+				err = httpserver.ParseRoller(handler.Log.Roller, what, where...)
+				if err != nil {
+					return err
+				}
+			} else {
+				if len(where) != 1 {
+					return c.ArgErr()
+				}
+				where := where[0]
+
+				// Error page; ensure it exists
+				if !filepath.IsAbs(where) {
+					where = filepath.Join(cfg.Root, where)
+				}
+
+				f, err := os.Open(where)
+				if err != nil {
+					log.Printf("[WARNING] Unable to open error page '%s': %v", where, err)
+				}
+				f.Close()
+
+				if what == "*" {
+					if handler.GenericErrorPage != "" {
+						return c.Errf("Duplicate status code entry: %s", what)
+					}
+					handler.GenericErrorPage = where
+				} else {
+					whatInt, err := strconv.Atoi(what)
+					if err != nil {
+						return c.Err("Expecting a numeric status code or '*', got '" + what + "'")
+					}
+
+					if _, exists := handler.ErrorPages[whatInt]; exists {
+						return c.Errf("Duplicate status code entry: %s", what)
+					}
+
+					handler.ErrorPages[whatInt] = where
+				}
+			}
+		}
+		return nil
+	}
+
+	for c.Next() {
+		// weird hack to avoid having the handler values overwritten.
+		if c.Val() == "}" {
+			continue
+		}
+
+		args := c.RemainingArgs()
+
+		if len(args) == 1 {
+			switch args[0] {
+			case "visible":
+				handler.Debug = true
+			default:
+				handler.Log.Output = args[0]
+				handler.Log.Roller = httpserver.DefaultLogRoller()
+			}
+		}
+
+		// Configuration may be in a block
+		err := optionalBlock()
+		if err != nil {
+			return handler, err
+		}
+	}
+
+	return handler, nil
+}

vendor/github.com/mholt/caddy/caddyhttp/errors/setup_test.go

@@ -0,0 +1,199 @@
+// Copyright 2015 Light Code Labs, LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package errors
+
+import (
+	"path/filepath"
+	"reflect"
+	"testing"
+
+	"github.com/mholt/caddy"
+	"github.com/mholt/caddy/caddyhttp/httpserver"
+)
+
+func TestSetup(t *testing.T) {
+	c := caddy.NewTestController("http", `errors`)
+	err := setup(c)
+	if err != nil {
+		t.Errorf("Expected no errors, got: %v", err)
+	}
+	mids := httpserver.GetConfig(c).Middleware()
+	if len(mids) == 0 {
+		t.Fatal("Expected middlewares, was nil instead")
+	}
+
+	handler := mids[0](httpserver.EmptyNext)
+	myHandler, ok := handler.(*ErrorHandler)
+	if !ok {
+		t.Fatalf("Expected handler to be type ErrorHandler, got: %#v", handler)
+	}
+
+	expectedLogger := &httpserver.Logger{}
+
+	if !reflect.DeepEqual(expectedLogger, myHandler.Log) {
+		t.Errorf("Expected '%v' as the default Log, got: '%v'", expectedLogger, myHandler.Log)
+	}
+
+	if !httpserver.SameNext(myHandler.Next, httpserver.EmptyNext) {
+		t.Error("'Next' field of handler was not set properly")
+	}
+
+	// Test Startup function -- TODO
+	// if len(c.Startup) == 0 {
+	// 	t.Fatal("Expected 1 startup function, had 0")
+	// }
+	// c.Startup[0]()
+	// if myHandler.Log == nil {
+	// 	t.Error("Expected Log to be non-nil after startup because Debug is not enabled")
+	// }
+}
+
+func TestErrorsParse(t *testing.T) {
+	testAbs, err := filepath.Abs("./404.html")
+	if err != nil {
+		t.Error(err)
+	}
+	tests := []struct {
+		inputErrorsRules     string
+		shouldErr            bool
+		expectedErrorHandler ErrorHandler
+	}{
+		{`errors`, false, ErrorHandler{
+			ErrorPages: map[int]string{},
+			Log:        &httpserver.Logger{},
+		}},
+		{`errors errors.txt`, false, ErrorHandler{
+			ErrorPages: map[int]string{},
+			Log: &httpserver.Logger{
+				Output: "errors.txt",
+				Roller: httpserver.DefaultLogRoller(),
+			},
+		}},
+		{`errors visible`, false, ErrorHandler{
+			ErrorPages: map[int]string{},
+			Debug:      true,
+			Log:        &httpserver.Logger{},
+		}},
+		{`errors errors.txt {
+        404 404.html
+        500 500.html
+}`, false, ErrorHandler{
+			ErrorPages: map[int]string{
+				404: "404.html",
+				500: "500.html",
+			},
+			Log: &httpserver.Logger{
+				Output: "errors.txt",
+				Roller: httpserver.DefaultLogRoller(),
+			},
+		}},
+		{`errors errors.txt {
+			rotate_size 2
+			rotate_age 10
+			rotate_keep 3
+			rotate_compress
+		}`, false, ErrorHandler{
+			ErrorPages: map[int]string{},
+			Log: &httpserver.Logger{
+				Output: "errors.txt", Roller: &httpserver.LogRoller{
+					MaxSize:    2,
+					MaxAge:     10,
+					MaxBackups: 3,
+					Compress:   true,
+					LocalTime:  true,
+				},
+			},
+		}},
+		{`errors errors.txt {
+		rotate_size 3
+		rotate_age 11
+		rotate_keep 5
+        404 404.html
+        503 503.html
+}`, false, ErrorHandler{
+			ErrorPages: map[int]string{
+				404: "404.html",
+				503: "503.html",
+			},
+			Log: &httpserver.Logger{
+				Output: "errors.txt",
+				Roller: &httpserver.LogRoller{
+					MaxSize:    3,
+					MaxAge:     11,
+					MaxBackups: 5,
+					Compress:   false,
+					LocalTime:  true,
+				},
+			},
+		}},
+		{`errors errors.txt {
+        * generic_error.html
+        404 404.html
+        503 503.html
+}`, false, ErrorHandler{
+			Log: &httpserver.Logger{
+				Output: "errors.txt",
+				Roller: httpserver.DefaultLogRoller(),
+			},
+			GenericErrorPage: "generic_error.html",
+			ErrorPages: map[int]string{
+				404: "404.html",
+				503: "503.html",
+			},
+		}},
+		// test absolute file path
+		{`errors {
+			404 ` + testAbs + `
+		}`,
+			false, ErrorHandler{
+				ErrorPages: map[int]string{
+					404: testAbs,
+				},
+				Log: &httpserver.Logger{},
+			}},
+		{`errors errors.txt { rotate_size 2 rotate_age 10 rotate_keep 3 rotate_compress }`,
+			true, ErrorHandler{ErrorPages: map[int]string{}, Log: &httpserver.Logger{}}},
+		{`errors errors.txt {
+			rotate_compress invalid
+		}`,
+			true, ErrorHandler{ErrorPages: map[int]string{}, Log: &httpserver.Logger{}}},
+		// Next two test cases is the detection of duplicate status codes
+		{`errors {
+			503 503.html
+			503 503.html
+		}`, true, ErrorHandler{ErrorPages: map[int]string{}, Log: &httpserver.Logger{}}},
+
+		{`errors {
+			* generic_error.html
+			* generic_error.html
+		}`, true, ErrorHandler{ErrorPages: map[int]string{}, Log: &httpserver.Logger{}}},
+	}
+
+	for i, test := range tests {
+		actualErrorsRule, err := errorsParse(caddy.NewTestController("http", test.inputErrorsRules))
+
+		if err == nil && test.shouldErr {
+			t.Errorf("Test %d didn't error, but it should have", i)
+		} else if err != nil && !test.shouldErr {
+			t.Errorf("Test %d errored, but it shouldn't have; got '%v'", i, err)
+		} else if err != nil && test.shouldErr {
+			continue
+		}
+		if !reflect.DeepEqual(actualErrorsRule, &test.expectedErrorHandler) {
+			t.Errorf("Test %d expect %v, but got %v", i,
+				test.expectedErrorHandler, actualErrorsRule)
+		}
+	}
+}