Move TestNativeContextMiddleware to mux_test.go

Author: fharding1

context_test.go

@@ -7,6 +7,7 @@ package mux
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"errors"
 	"fmt"
 	"io/ioutil"
@@ -16,6 +17,7 @@ import (
 	"reflect"
 	"strings"
 	"testing"
+	"time"
 )
 
 func (r *Route) GoString() string {
@@ -2804,6 +2806,28 @@ func TestSubrouterNotFound(t *testing.T) {
 	}
 }
 
+func TestContextMiddleware(t *testing.T) {
+	withTimeout := func(h http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			ctx, cancel := context.WithTimeout(r.Context(), time.Minute)
+			defer cancel()
+			h.ServeHTTP(w, r.WithContext(ctx))
+		})
+	}
+
+	r := NewRouter()
+	r.Handle("/path/{foo}", withTimeout(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		vars := Vars(r)
+		if vars["foo"] != "bar" {
+			t.Fatal("Expected foo var to be set")
+		}
+	})))
+
+	rec := NewRecorder()
+	req := newRequest("GET", "/path/bar")
+	r.ServeHTTP(rec, req)
+}
+
 // mapToPairs converts a string map to a slice of string pairs
 func mapToPairs(m map[string]string) []string {
 	var i int