Реализация, фаза 1: добавление данных в qbittorrent

internal/magnet/magnet_test.go

@@ -0,0 +1,78 @@
+package magnet
+
+import "testing"
+
+func TestParse(t *testing.T) {
+	tests := []struct {
+		name     string
+		raw      string
+		infohash string
+		dn       string
+		trackers int
+	}{
+		{
+			name:     "btih hex (из BRIEF)",
+			raw:      "magnet:?xt=urn:btih:541ADCFF3B6DD5DBA7088EA83317D9D6FAC331D6&tr=http%3A%2F%2Fbt.t-ru.org%2Fann%3Fmagnet&dn=rutracker-topic-6514485",
+			infohash: "541adcff3b6dd5dba7088ea83317d9d6fac331d6",
+			dn:       "rutracker-topic-6514485",
+			trackers: 1,
+		},
+		{
+			name:     "btih base32 (20 нулевых байт)",
+			raw:      "magnet:?xt=urn:btih:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
+			infohash: "0000000000000000000000000000000000000000",
+		},
+		{
+			name:     "btmh v2 sha256",
+			raw:      "magnet:?xt=urn:btmh:12200123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
+			infohash: "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			got, err := Parse(tc.raw)
+			if err != nil {
+				t.Fatalf("Parse: %v", err)
+			}
+			if got.Infohash != tc.infohash {
+				t.Errorf("infohash = %q, want %q", got.Infohash, tc.infohash)
+			}
+			if got.DisplayName != tc.dn {
+				t.Errorf("dn = %q, want %q", got.DisplayName, tc.dn)
+			}
+			if len(got.Trackers) != tc.trackers {
+				t.Errorf("trackers = %d, want %d", len(got.Trackers), tc.trackers)
+			}
+		})
+	}
+}
+
+func TestParseErrors(t *testing.T) {
+	cases := []string{
+		"https://example.com/file.torrent", // не magnet
+		"magnet:?dn=no-infohash",           // нет xt
+		"magnet:?xt=urn:btih:zzzz",         // некорректный hash
+		"",                                 // пусто
+	}
+	for _, raw := range cases {
+		if _, err := Parse(raw); err == nil {
+			t.Errorf("Parse(%q): ожидалась ошибка", raw)
+		}
+	}
+}
+
+func TestParseNormalisesCase(t *testing.T) {
+	lower := "magnet:?xt=urn:btih:541adcff3b6dd5dba7088ea83317d9d6fac331d6"
+	upper := "magnet:?xt=urn:btih:541ADCFF3B6DD5DBA7088EA83317D9D6FAC331D6"
+	a, err := Parse(lower)
+	if err != nil {
+		t.Fatal(err)
+	}
+	b, err := Parse(upper)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if a.Infohash != b.Infohash {
+		t.Errorf("регистр влияет: %q != %q", a.Infohash, b.Infohash)
+	}
+}