test: HealthCheck review.

testhelpers/helpers.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"net/url"
 )
 
 // Intp returns a pointer to the given integer value.
@@ -19,3 +20,12 @@ func MustNewRequest(method, urlStr string, body io.Reader) *http.Request {
 	}
 	return request
 }
+
+// MustParseURL parses a URL or panics if it can't
+func MustParseURL(rawURL string) *url.URL {
+	u, err := url.Parse(rawURL)
+	if err != nil {
+		panic(fmt.Sprintf("failed to parse URL '%s': %s", rawURL, err))
+	}
+	return u
+}