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Merge pull request #2878 from silviucm/master
Add the ability to unregister fixed routes
This commit is contained in:
astaxie
GitHub
commit
f7afb3cb75
79
app.go
79
app.go
@ -25,6 +25,7 @@ import (
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"os"
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"path"
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"time"
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"strings"
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"github.com/astaxie/beego/grace"
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"github.com/astaxie/beego/logs"
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@ -240,6 +241,84 @@ func Router(rootpath string, c ControllerInterface, mappingMethods ...string) *A
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return BeeApp
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}
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// UnregisterFixedRoute unregisters the route with the specified fixedRoute. It is particularly useful
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// in web applications that inherit most routes from a base webapp via the underscore
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// import, and aim to overwrite only certain paths.
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// The method parameter can be empty or "*" for all HTTP methods, or a particular
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// method type (e.g. "GET" or "POST") for selective removal.
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//
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// Usage (replace "GET" with "*" for all methods):
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// beego.UnregisterFixedRoute("/yourpreviouspath", "GET")
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// beego.Router("/yourpreviouspath", yourControllerAddress, "get:GetNewPage")
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func UnregisterFixedRoute(fixedRoute string, method string) *App {
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subPaths := splitPath(fixedRoute)
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if method == "" || method == "*" {
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for _, m := range HTTPMETHOD {
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if _, ok := BeeApp.Handlers.routers[m]; !ok {
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continue
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}
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if BeeApp.Handlers.routers[m].prefix == strings.Trim(fixedRoute, "/ ") {
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findAndRemoveSingleTree(BeeApp.Handlers.routers[m])
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continue
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}
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findAndRemoveTree(subPaths, BeeApp.Handlers.routers[m], m)
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}
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return BeeApp
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}
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// Single HTTP method
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um := strings.ToUpper(method)
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if _, ok := BeeApp.Handlers.routers[um]; ok {
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if BeeApp.Handlers.routers[um].prefix == strings.Trim(fixedRoute, "/ ") {
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findAndRemoveSingleTree(BeeApp.Handlers.routers[um])
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return BeeApp
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}
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findAndRemoveTree(subPaths, BeeApp.Handlers.routers[um], um)
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}
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return BeeApp
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}
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func findAndRemoveTree(paths []string, entryPointTree *Tree, method string) {
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for i := range entryPointTree.fixrouters {
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if entryPointTree.fixrouters[i].prefix == paths[0] {
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if len(paths) == 1 {
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if len(entryPointTree.fixrouters[i].fixrouters) > 0 {
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// If the route had children subtrees, remove just the functional leaf,
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// to allow children to function as before
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if len(entryPointTree.fixrouters[i].leaves) > 0 {
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entryPointTree.fixrouters[i].leaves[0] = nil
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entryPointTree.fixrouters[i].leaves = entryPointTree.fixrouters[i].leaves[1:]
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}
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} else {
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// Remove the *Tree from the fixrouters slice
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entryPointTree.fixrouters[i] = nil
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if i == len(entryPointTree.fixrouters)-1 {
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entryPointTree.fixrouters = entryPointTree.fixrouters[:i]
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} else {
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entryPointTree.fixrouters = append(entryPointTree.fixrouters[:i], entryPointTree.fixrouters[i+1:len(entryPointTree.fixrouters)]...)
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}
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}
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return
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}
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findAndRemoveTree(paths[1:], entryPointTree.fixrouters[i], method)
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}
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}
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}
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func findAndRemoveSingleTree(entryPointTree *Tree) {
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if entryPointTree == nil {
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return
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}
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if len(entryPointTree.fixrouters) > 0 {
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// If the route had children subtrees, remove just the functional leaf,
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// to allow children to function as before
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if len(entryPointTree.leaves) > 0 {
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entryPointTree.leaves[0] = nil
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entryPointTree.leaves = entryPointTree.leaves[1:]
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}
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}
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}
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// Include will generate router file in the router/xxx.go from the controller's comments
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// usage:
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// beego.Include(&BankAccount{}, &OrderController{},&RefundController{},&ReceiptController{})
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226
unregroute_test.go
Normal file
226
unregroute_test.go
Normal file
@ -0,0 +1,226 @@
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// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package beego
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import (
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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)
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//
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// The unregroute_test.go contains tests for the unregister route
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// functionality, that allows overriding route paths in children project
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// that embed parent routers.
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//
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const contentRootOriginal = "ok-original-root"
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const contentLevel1Original = "ok-original-level1"
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const contentLevel2Original = "ok-original-level2"
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const contentRootReplacement = "ok-replacement-root"
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const contentLevel1Replacement = "ok-replacement-level1"
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const contentLevel2Replacement = "ok-replacement-level2"
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// TestPreUnregController will supply content for the original routes,
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// before unregistration
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type TestPreUnregController struct {
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Controller
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}
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func (tc *TestPreUnregController) GetFixedRoot() {
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tc.Ctx.Output.Body([]byte(contentRootOriginal))
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}
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func (tc *TestPreUnregController) GetFixedLevel1() {
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tc.Ctx.Output.Body([]byte(contentLevel1Original))
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}
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func (tc *TestPreUnregController) GetFixedLevel2() {
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tc.Ctx.Output.Body([]byte(contentLevel2Original))
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}
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// TestPostUnregController will supply content for the overriding routes,
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// after the original ones are unregistered.
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type TestPostUnregController struct {
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Controller
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}
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func (tc *TestPostUnregController) GetFixedRoot() {
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tc.Ctx.Output.Body([]byte(contentRootReplacement))
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}
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func (tc *TestPostUnregController) GetFixedLevel1() {
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tc.Ctx.Output.Body([]byte(contentLevel1Replacement))
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}
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func (tc *TestPostUnregController) GetFixedLevel2() {
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tc.Ctx.Output.Body([]byte(contentLevel2Replacement))
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}
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// TestUnregisterFixedRouteRoot replaces just the root fixed route path.
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// In this case, for a path like "/level1/level2" or "/level1", those actions
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// should remain intact, and continue to serve the original content.
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func TestUnregisterFixedRouteRoot(t *testing.T) {
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var method string = "GET"
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handler := NewControllerRegister()
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handler.Add("/", &TestPreUnregController{}, "get:GetFixedRoot")
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handler.Add("/level1", &TestPreUnregController{}, "get:GetFixedLevel1")
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handler.Add("/level1/level2", &TestPreUnregController{}, "get:GetFixedLevel2")
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// Test original root
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testHelperFnContentCheck(t, handler, "Test original root",
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method, "/", contentRootOriginal)
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// Test original level 1
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testHelperFnContentCheck(t, handler, "Test original level 1",
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method, "/level1", contentLevel1Original)
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// Test original level 2
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testHelperFnContentCheck(t, handler, "Test original level 2",
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method, "/level1/level2", contentLevel2Original)
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// Remove only the root path
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findAndRemoveSingleTree(handler.routers[method])
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// Replace the root path TestPreUnregController action with the action from
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// TestPostUnregController
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handler.Add("/", &TestPostUnregController{}, "get:GetFixedRoot")
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// Test replacement root (expect change)
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testHelperFnContentCheck(t, handler, "Test replacement root (expect change)", method, "/", contentRootReplacement)
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// Test level 1 (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test level 1 (expect no change from the original)", method, "/level1", contentLevel1Original)
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// Test level 2 (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test level 2 (expect no change from the original)", method, "/level1/level2", contentLevel2Original)
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}
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// TestUnregisterFixedRouteLevel1 replaces just the "/level1" fixed route path.
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// In this case, for a path like "/level1/level2" or "/", those actions
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// should remain intact, and continue to serve the original content.
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func TestUnregisterFixedRouteLevel1(t *testing.T) {
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var method string = "GET"
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handler := NewControllerRegister()
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handler.Add("/", &TestPreUnregController{}, "get:GetFixedRoot")
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handler.Add("/level1", &TestPreUnregController{}, "get:GetFixedLevel1")
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handler.Add("/level1/level2", &TestPreUnregController{}, "get:GetFixedLevel2")
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// Test original root
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original root",
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method, "/", contentRootOriginal)
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// Test original level 1
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original level 1",
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method, "/level1", contentLevel1Original)
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// Test original level 2
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original level 2",
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method, "/level1/level2", contentLevel2Original)
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// Remove only the level1 path
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subPaths := splitPath("/level1")
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if handler.routers[method].prefix == strings.Trim("/level1", "/ ") {
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findAndRemoveSingleTree(handler.routers[method])
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} else {
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findAndRemoveTree(subPaths, handler.routers[method], method)
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}
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// Replace the "level1" path TestPreUnregController action with the action from
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// TestPostUnregController
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handler.Add("/level1", &TestPostUnregController{}, "get:GetFixedLevel1")
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// Test replacement root (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test replacement root (expect no change from the original)", method, "/", contentRootOriginal)
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// Test level 1 (expect change)
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testHelperFnContentCheck(t, handler, "Test level 1 (expect change)", method, "/level1", contentLevel1Replacement)
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// Test level 2 (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test level 2 (expect no change from the original)", method, "/level1/level2", contentLevel2Original)
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}
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// TestUnregisterFixedRouteLevel2 unregisters just the "/level1/level2" fixed
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// route path. In this case, for a path like "/level1" or "/", those actions
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// should remain intact, and continue to serve the original content.
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func TestUnregisterFixedRouteLevel2(t *testing.T) {
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var method string = "GET"
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handler := NewControllerRegister()
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handler.Add("/", &TestPreUnregController{}, "get:GetFixedRoot")
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handler.Add("/level1", &TestPreUnregController{}, "get:GetFixedLevel1")
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handler.Add("/level1/level2", &TestPreUnregController{}, "get:GetFixedLevel2")
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// Test original root
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original root",
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method, "/", contentRootOriginal)
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// Test original level 1
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original level 1",
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method, "/level1", contentLevel1Original)
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// Test original level 2
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testHelperFnContentCheck(t, handler,
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"TestUnregisterFixedRouteLevel1.Test original level 2",
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method, "/level1/level2", contentLevel2Original)
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// Remove only the level2 path
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subPaths := splitPath("/level1/level2")
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if handler.routers[method].prefix == strings.Trim("/level1/level2", "/ ") {
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findAndRemoveSingleTree(handler.routers[method])
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} else {
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findAndRemoveTree(subPaths, handler.routers[method], method)
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}
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// Replace the "/level1/level2" path TestPreUnregController action with the action from
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// TestPostUnregController
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handler.Add("/level1/level2", &TestPostUnregController{}, "get:GetFixedLevel2")
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// Test replacement root (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test replacement root (expect no change from the original)", method, "/", contentRootOriginal)
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// Test level 1 (expect no change from the original)
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testHelperFnContentCheck(t, handler, "Test level 1 (expect no change from the original)", method, "/level1", contentLevel1Original)
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// Test level 2 (expect change)
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testHelperFnContentCheck(t, handler, "Test level 2 (expect change)", method, "/level1/level2", contentLevel2Replacement)
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}
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func testHelperFnContentCheck(t *testing.T, handler *ControllerRegister,
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testName, method, path, expectedBodyContent string) {
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r, err := http.NewRequest(method, path, nil)
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if err != nil {
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t.Errorf("httpRecorderBodyTest NewRequest error: %v", err)
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return
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}
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w := httptest.NewRecorder()
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handler.ServeHTTP(w, r)
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body := w.Body.String()
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if body != expectedBodyContent {
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t.Errorf("%s: expected [%s], got [%s];", testName, expectedBodyContent, body)
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}
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}
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