819aed35bf
To mock a handler:
```go
web.RouteMock(web.MockAfterMiddlewares, func(ctx *context.Context) {
// ...
})
defer web.RouteMockReset()
```
It helps:
* Test the middleware's behavior (assert the ctx.Data, etc)
* Mock the middleware's behavior (prepare some context data for handler)
* Mock the handler's response for some test cases, especially for some
integration tests and e2e tests.
62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package web
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import (
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"net/http"
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"code.gitea.io/gitea/modules/setting"
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)
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// MockAfterMiddlewares is a general mock point, it's between middlewares and the handler
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const MockAfterMiddlewares = "MockAfterMiddlewares"
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var routeMockPoints = map[string]func(next http.Handler) http.Handler{}
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// RouteMockPoint registers a mock point as a middleware for testing, example:
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//
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// r.Use(web.RouteMockPoint("my-mock-point-1"))
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// r.Get("/foo", middleware2, web.RouteMockPoint("my-mock-point-2"), middleware2, handler)
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//
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// Then use web.RouteMock to mock the route execution.
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// It only takes effect in testing mode (setting.IsInTesting == true).
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func RouteMockPoint(pointName string) func(next http.Handler) http.Handler {
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if !setting.IsInTesting {
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return nil
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}
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routeMockPoints[pointName] = nil
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if h := routeMockPoints[pointName]; h != nil {
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h(next).ServeHTTP(w, r)
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} else {
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next.ServeHTTP(w, r)
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}
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})
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}
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}
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// RouteMock uses the registered mock point to mock the route execution, example:
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//
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// defer web.RouteMockReset()
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// web.RouteMock(web.MockAfterMiddlewares, func(ctx *context.Context) {
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// ctx.WriteResponse(...)
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// }
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//
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// Then the mock function will be executed as a middleware at the mock point.
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// It only takes effect in testing mode (setting.IsInTesting == true).
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func RouteMock(pointName string, h any) {
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if _, ok := routeMockPoints[pointName]; !ok {
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panic("route mock point not found: " + pointName)
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}
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routeMockPoints[pointName] = toHandlerProvider(h)
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}
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// RouteMockReset resets all mock points (no mock anymore)
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func RouteMockReset() {
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for k := range routeMockPoints {
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routeMockPoints[k] = nil // keep the keys because RouteMock will check the keys to make sure no misspelling
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}
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}
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