Function TestRouterBacktrackingFromMultipleParamKinds

router_test.go:1216–1279

(t *testing.T)

}

func TestRouterBacktrackingFromMultipleParamKinds(t *testing.T) {
	e := New()

	e.GET("/*", handlerFunc) // this can match only path that does not have slash in it
	e.GET("/:1/second", handlerFunc)
	e.GET("/:1/:2", handlerFunc) // this acts as match ANY for all routes that have at least one slash
	e.GET("/:1/:2/third", handlerFunc)
	e.GET("/:1/:2/:3/fourth", handlerFunc)
	e.GET("/:1/:2/:3/:4/fifth", handlerFunc)

	var testCases = []struct {
		expectParam map[string]string
		name        string
		whenURL     string
		expectRoute string
	}{
		{
			name:        "route /first to /*",
			whenURL:     "/first",
			expectRoute: "/*",
			expectParam: map[string]string{"*": "first"},
		},
		{
			name:        "route /first/second to /:1/second",
			whenURL:     "/first/second",
			expectRoute: "/:1/second",
			expectParam: map[string]string{"1": "first"},
		},
		{
			name:        "route /first/second-new to /:1/:2",
			whenURL:     "/first/second-new",
			expectRoute: "/:1/:2",
			expectParam: map[string]string{
				"1": "first",
				"2": "second-new",
			},
		},
		{ // FIXME: should match `/:1/:2` when backtracking in tree. this 1 level backtracking fails even with old implementation
			name:        "route /first/second/ to /:1/:2",
			whenURL:     "/first/second/",                        /// <-- slash at the end is problematic
			expectRoute: "/*",                                    // "/:1/:2",
			expectParam: map[string]string{"*": "first/second/"}, // map[string]string{"1": "first", "2": "second/"},
		},
		{ // FIXME: should match `/:1/:2`. same backtracking problem. when backtracking is at `/:1/:2` during backtracking this node should be match as it has executable handler
			name:        "route /first/second/third/fourth/fifth/nope to /:1/:2",
			whenURL:     "/first/second/third/fourth/fifth/nope",
			expectRoute: "/*",                                                           // "/:1/:2",
			expectParam: map[string]string{"*": "first/second/third/fourth/fifth/nope"}, // map[string]string{"1": "first", "2": "second/third/fourth/fifth/nope"},
		},
	}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			c := e.NewContext(httptest.NewRequest(http.MethodGet, tc.whenURL, nil), nil)
			_ = e.router.Route(c)

			assert.Equal(t, tc.expectRoute, c.Path())
			for param, expectedValue := range tc.expectParam {