chore: seperate large files

internal/format/vtt/utils_test.go

@@ -0,0 +1,39 @@
+package vtt
+
+import (
+	"fmt"
+	"testing"
+
+	"sub-cli/internal/model"
+)
+
+func TestParseVTTTimestamp(t *testing.T) {
+	testCases := []struct {
+		input    string
+		expected model.Timestamp
+	}{
+		// Standard format
+		{"00:00:01.000", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 0}},
+		// Without leading zeros
+		{"0:0:1.0", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 0}},
+		// Different millisecond formats
+		{"00:00:01.1", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 100}},
+		{"00:00:01.12", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 120}},
+		{"00:00:01.123", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 123}},
+		// Long milliseconds (should truncate)
+		{"00:00:01.1234", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 1, Milliseconds: 123}},
+		// Unusual but valid format
+		{"01:02:03.456", model.Timestamp{Hours: 1, Minutes: 2, Seconds: 3, Milliseconds: 456}},
+		// Invalid format (should return a zero timestamp)
+		{"invalid", model.Timestamp{Hours: 0, Minutes: 0, Seconds: 0, Milliseconds: 0}},
+	}
+	
+	for _, tc := range testCases {
+		t.Run(fmt.Sprintf("Timestamp_%s", tc.input), func(t *testing.T) {
+			result := parseVTTTimestamp(tc.input)
+			if result != tc.expected {
+				t.Errorf("parseVTTTimestamp(%s) = %+v, want %+v", tc.input, result, tc.expected)
+			}
+		})
+	}
+}