inital commit

errors_test.go

@@ -0,0 +1,34 @@
+package fa
+
+import (
+	"errors"
+	"testing"
+)
+
+func TestSystemMessageError_IsErrSystemMessage(t *testing.T) {
+	err := &SystemMessageError{Title: "Something", Body: "broke"}
+	if !errors.Is(err, ErrSystemMessage) {
+		t.Fatalf("errors.Is(SystemMessageError, ErrSystemMessage) = false; want true")
+	}
+}
+
+func TestHTTPError_Format(t *testing.T) {
+	e := &HTTPError{StatusCode: 503, URL: "https://example/"}
+	if got := e.Error(); got != "fa: http 503 for https://example/" {
+		t.Fatalf("HTTPError.Error() = %q", got)
+	}
+}
+
+func TestSentinelsAreDistinct(t *testing.T) {
+	sentinels := []error{
+		ErrNotFound, ErrUnauthorized, ErrCloudflareChallenge,
+		ErrRateLimited, ErrSystemMessage, ErrParse,
+	}
+	for i, a := range sentinels {
+		for j, b := range sentinels {
+			if i != j && errors.Is(a, b) {
+				t.Errorf("sentinel %v wrongly matches %v", a, b)
+			}
+		}
+	}
+}