public static void FormatParseTest()
{
string[] patterns = new string[] { CultureInfo.CurrentCulture.DateTimeFormat.ShortTimePattern, CultureInfo.CurrentCulture.DateTimeFormat.LongTimePattern, "t", "T", "o", "r" };
TimeOnly timeOnly = TimeOnly.FromDateTime(DateTime.Now);
foreach (string format in patterns)
{
string formattedTime = timeOnly.ToString(format);
timeOnly = TimeOnly.Parse(formattedTime);
Assert.True(TimeOnly.TryParse(formattedTime, out TimeOnly parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly1);
TimeOnly parsedTimeOnly = TimeOnly.Parse(formattedTime.AsSpan());
Assert.True(TimeOnly.TryParse(formattedTime.AsSpan(), out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.Parse(formattedTime, CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParse(formattedTime, CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.Parse(formattedTime.AsSpan(), CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParse(formattedTime.AsSpan(), CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime, format);
Assert.True(TimeOnly.TryParseExact(formattedTime, format, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime.AsSpan(), format.AsSpan());
Assert.True(TimeOnly.TryParseExact(formattedTime.AsSpan(), format.AsSpan(), out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime, format, CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParseExact(formattedTime, format, CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime.AsSpan(), format.AsSpan(), CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParseExact(formattedTime.AsSpan(), format.AsSpan(), CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime, patterns);
Assert.True(TimeOnly.TryParseExact(formattedTime, patterns, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime.AsSpan(), patterns);
Assert.True(TimeOnly.TryParseExact(formattedTime.AsSpan(), patterns, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime, patterns, CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParseExact(formattedTime, patterns, CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
parsedTimeOnly = TimeOnly.ParseExact(formattedTime.AsSpan(), patterns, CultureInfo.CurrentCulture);
Assert.True(TimeOnly.TryParseExact(formattedTime.AsSpan(), patterns, CultureInfo.CurrentCulture, DateTimeStyles.None, out parsedTimeOnly1));
Assert.Equal(timeOnly, parsedTimeOnly);
Assert.Equal(timeOnly, parsedTimeOnly1);
}
}