Adding upstream version 0.28.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

tools/mailer/mailer_test.go

@@ -0,0 +1,77 @@
+package mailer
+
+import (
+	"fmt"
+	"io"
+	"net/mail"
+	"strings"
+	"testing"
+)
+
+func TestAddressesToStrings(t *testing.T) {
+	t.Parallel()
+
+	scenarios := []struct {
+		withName  bool
+		addresses []mail.Address
+		expected  []string
+	}{
+		{
+			true,
+			[]mail.Address{{Name: "John Doe", Address: "test1@example.com"}, {Name: "Jane Doe", Address: "test2@example.com"}},
+			[]string{`"John Doe" <test1@example.com>`, `"Jane Doe" <test2@example.com>`},
+		},
+		{
+			true,
+			[]mail.Address{{Name: "John Doe", Address: "test1@example.com"}, {Address: "test2@example.com"}},
+			[]string{`"John Doe" <test1@example.com>`, `test2@example.com`},
+		},
+		{
+			false,
+			[]mail.Address{{Name: "John Doe", Address: "test1@example.com"}, {Name: "Jane Doe", Address: "test2@example.com"}},
+			[]string{`test1@example.com`, `test2@example.com`},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(fmt.Sprintf("%v_%v", s.withName, s.addresses), func(t *testing.T) {
+			result := addressesToStrings(s.addresses, s.withName)
+
+			if len(s.expected) != len(result) {
+				t.Fatalf("Expected\n%v\ngot\n%v", s.expected, result)
+			}
+
+			for k, v := range s.expected {
+				if v != result[k] {
+					t.Fatalf("Expected %d address %q, got %q", k, v, result[k])
+				}
+			}
+		})
+	}
+}
+
+func TestDetectReaderMimeType(t *testing.T) {
+	t.Parallel()
+
+	str := "#!/bin/node\n" + strings.Repeat("a", 10000) // ensure that it is large enough to remain after the signature sniffing
+
+	r, mime, err := detectReaderMimeType(strings.NewReader(str))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	expectedMime := "text/javascript"
+	if mime != expectedMime {
+		t.Fatalf("Expected mime %q, got %q", expectedMime, mime)
+	}
+
+	raw, err := io.ReadAll(r)
+	if err != nil {
+		t.Fatal(err)
+	}
+	rawStr := string(raw)
+
+	if rawStr != str {
+		t.Fatalf("Expected content\n%s\ngot\n%s", str, rawStr)
+	}
+}