headers: Initial test for Headers

middleware/headers/headers_test.go

+package headers
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/mholt/caddy/middleware"
+)
+
+func TestHeaders(t *testing.T) {
+	for i, test := range []struct {
+		from  string
+		name  string
+		value string
+	}{
+		{"/a", "Foo", "Bar"},
+		{"/a", "Bar", ""},
+		{"/a", "Baz", ""},
+		{"/b", "Foo", ""},
+		{"/b", "Bar", "Removed in /a"},
+	} {
+		he := Headers{
+			Next: middleware.HandlerFunc(func(w http.ResponseWriter, r *http.Request) (int, error) {
+				return 0, nil
+			}),
+			Rules: []Rule{
+				{Path: "/a", Headers: []Header{
+					{Name: "Foo", Value: "Bar"},
+					{Name: "-Bar"},
+				}},
+			},
+		}
+
+		req, err := http.NewRequest("GET", test.from, nil)
+		if err != nil {
+			t.Fatalf("Test %d: Could not create HTTP request: %v", i, err)
+		}
+
+		rec := httptest.NewRecorder()
+		rec.Header().Set("Bar", "Removed in /a")
+
+		he.ServeHTTP(rec, req)
+
+		if got := rec.Header().Get(test.name); got != test.value {
+			t.Errorf("Test %d: Expected %s header to be %q but was %q",
+				i, test.name, test.value, got)
+		}
+	}
+}