Develop Reference

Time where minutes are not counted in a C# assertion snippet for an appium test

I am attempting to ensure that hours are not off minutes I am not too concerned with but can't seem to break them off the code. Is there a way to allow the assertion to be 10 minutes off?
public void DeviceTimeAssertion()
{
IWebElement TimeTitle = _driver.FindElementByXPath("
(//android.widget.TextView[#content-desc='xpathvalue'])[1]");
string Time = DateTime.Now.ToString("MM/dd/yy h:mm tt");
//string Time = DateTime.Now.ToString("MM/dd/yy h:mm");
string ActText = TimeTitle.Text;
string ExpectedTime = "Check-in: " + Time;
//if (ExpText.Equals(ActText))
Assert.AreEqual(ExpectedTime, ActText);

I think you need to do that with actual DateTime objects. You can try to do that:
var time = DateTime.Now;
var actText = TimeTitle.Text;
var isTime = DateTime.TryParse(actText.Split(' ')[1], out var actTime)
if(isTime)
{
var diff = TimeSpan.FromMinutes(10);
Assert.IsTrue(time + diff > actTime && time - diff < actTime);
}
else
{
throw new ArgumentException("There was no Time in the text :(");
}
Hope that helps

Determining the date logic based on a given string in c#

I have written a logic in c# that determines the nextCallDate based on the given cobDate. cobDate is current date -1.
So if there are more than one future date in the given string then it should return the nearest future date to the cobdate and ignore the rest
For eg if the cobdate is 2020/02/12 and the string is
;2;4;2;5;20180328;3;103.3750;5;20190328;3;102.250;5; 20200328;3;101.1250;5;20210328;3;100.00;
Then NextCallDate would be 2020/03/28.
I need to return blank for dates in the past.
So say in the example if the given string has all the dates in the past then it should return blank.
Given string ;2;1;2;5;20120918;3;100.000000;
Here is what I have written
private DateTime? GetNextCallDate(string nextCallDate)
{
DateTime cobDate = DateTime.Now.Date.AddDays(-1);
var parts = nextCallDate.Split(';');
foreach (var part in parts)
{
DateTime parsedNextCallDate = DateTime.Parse(part);
if (parsedNextCallDate.Date > cobDate.Date)
{
return parsedNextCallDate;
}
}
return null;
}

You should probably be using DateTime.TryParse instead of Parse, since some of the values are not dates. Also, it looks like you're returning the first date that's greater than cobDate, not the nearest one.
To resolve this, we first set parsedNextCallDate to null, and this will be our default return value. Then we can check each part if it's a DateTime using the return value from TryParse, and then compare the value to both cobDate and parsedNextCallDate. If the date is greater than cobDate and less than parasedNextCallDate (or if parasedNextCallDate isn't set yet), then we update parasedNextCallDate to the new value. At the end, we just return parasedNextCallDate:
public static DateTime? GetNextCallDate(string input)
{
DateTime? nextCallDate = null;
if (string.IsNullOrWhiteSpace(input)) return nextCallDate;
var yesterday = DateTime.Today.AddDays(-1);
var inputItems = input.Split(';');
foreach (var inputItem in inputItems)
{
DateTime itemDate;
// If inputItem is a DateTime and it's greater than yesterday
if (DateTime.TryParseExact(inputItem.Trim(), "yyyyMMdd", null,
DateTimeStyles.None, out itemDate) &&
itemDate.Date > yesterday)
{
// and if nextCallDate doesn't have a value or the parsed value
// is less than nextCallDate, assign nextCallDate to this value
if (!nextCallDate.HasValue || itemDate < nextCallDate)
{
nextCallDate = itemDate;
}
}
}
return nextCallDate;
}

Here's one way solve your problem. Breaking things down into steps often makes things easier to reason with and easier to test. I'm often working on server side apps so I like the new span/memory classes. So first thing is to split our input string into chunks:
static IEnumerable<ReadOnlyMemory<char>> ReduceToPossibleDates(string source)
{
const int ExpectedDateLen = 9; // includes separator
int last = 0;
var mem = source.AsMemory();
for (int i = 0; i < source.Length; ++i)
{
if (';' == mem.Span[i])
{
int length = i - last;
if (length == ExpectedDateLen)
{
yield return mem.Slice(last+1,length-1);
}
last = i;
}
}
}
This gives us a stream of ReadOnlyMemory that all contains what we think should be dates. Next we can do another method to consume those chunks and turn them into dates.
static IEnumerable<DateTime> ToDateTime(IEnumerable<ReadOnlyMemory<char>> rawDates)
{
foreach (var rawDate in rawDates)
{
if (DateTime.TryParseExact(rawDate.Span,"yyyyMMdd".AsSpan(),
CultureInfo.InvariantCulture,
DateTimeStyles.None, out var date))
yield return date;
}
}
Once we have that we can treat the stream of dates however we want. In this case we check to find the first that's after our COB.
static void Main(string[] _)
{
const string GoodData = ";2;4;2;5;20180328;3;103.3750;5;20190328;3;102.250;"+
"5;20200328;3;101.1250;5;20210328;3;100.00;";
const string NoDateData = ";2;1;2;5;20120918;3;100.000000;";
var cobDate = new DateTime(2020, 2,12); // some actual close of business date...
var nextCallDate = ToDateTime(ReduceToPossibleDates(GoodData))
.FirstOrDefault(x => x >= cobDate);
var noDateExpected = ToDateTime(ReduceToPossibleDates(NoDateData))
.FirstOrDefault(x => x >= cobDate);
if (nextCallDate != default(DateTime))
Console.WriteLine(nextCallDate);
else
Console.WriteLine("no call date.");
if (noDateExpected != default(DateTime))
Console.WriteLine(nextCallDate);
else
Console.WriteLine("no call date.");
}
It would be a little cleaner with extension methods but you get the idea.

C# Prinitng modified date range in console

I need to accept input paramteters and print date range in console like in the example:
input: "01.01.2017 05.01.2017"
output: "01 - 05.01.2017"
So as you see dates must be separated with dots and printed with dash between them. What is more, if start and end date both has the same month and year, these are printed only once.
Does anyone can suggest good way to achieve this?

Just format date as you need and add aditional check for cases.
DateTime date1 = new DateTime();
DateTime date2 = new DateTime();
//while not valid input dates format...
bool valid = false;
while (!valid)
{
Console.WriteLine("Enter start date:");
string dateEntered1 = Console.ReadLine();
Console.WriteLine("Enter end date:");
string dateEntered2 = Console.ReadLine();
bool isvalidDate1 = DateTime.TryParse(dateEntered1,out date1);
bool isvalidDate2 = DateTime.TryParse(dateEntered2,out date2);
//check if date parsing was sucess
if(isvalidDate1 && isvalidDate2)
{
valid = true;
}
else
{
Console.WriteLine("Dates entered is in incorrect format!");
}
}
string period = "";
if (date1.Month == date2.Month && date1.Year == date2.Year)
{
period = string.Format("{0} - {1}", date1.ToString("dd."), date2.ToString("dd.MM.yyyy"));
}
else
{
period = string.Format("{0} - {1}", date1.ToString("dd.MM.yyyy"), date2.ToString("dd.MM.yyyy"));
}
Console.Write(period);
Console.Read();

How To Display Date In Locale For 0 Values?

Ok, so I have a date stored in UK format (dd/mm/yy) which I need to display in the locale of wherever the user might be.
The issue is that this date can be 000000 (00/00/2000); so I can't convert it to DateTime directly, as DateTime doesn't support 0 values for day or month.
I have this so far:
int dateInt = ddmmyy;
var year = (dateInt % 100) + 2000;
var month = (dateInt / 100) % 100;
var day = (dateInt / 100000);
var result = new DateTime(year, month, day); //2014/00/00 at this point, so breaks.
var resultStr = result.ToString(CultureInfo.InvariantCulture);
return resultStr;
What's the correct way to add support for 0 values initially? I've tried changing the 0 to 1 before converting to DateTime, running the conversion and then replacing with a 0 again; but due to culture variants I see no way that this method can support other cultures, which is the purpose of this conversion to begin with.
Any ideas? I'm guessing this is a common issue.

Is this what you need ?
using System;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
int[] savedDates = new int[] { 000000, 010000, 000013 };
foreach (var item in savedDates)
{
DateTime date = ConvertToDate(item);
Console.WriteLine(item.ToString("D6") + " => " + date.ToShortDateString());
}
Console.ReadLine();
}
private static DateTime ConvertToDate(int item)
{
string temp = item.ToString("D6");
int day = int.Parse(temp.Substring(0, 2));
int month = int.Parse(temp.Substring(2, 2));
int year = int.Parse(temp.Substring(4, 2));
if (day == 0)
day = 1;
if (month == 0)
month = 1;
year += 2000;
return new DateTime(year, month, day);
}
}
}

I would not store dates like this as the methodology for doing so is already provided by the .NET framework.
The best way to store dates would be to use Culture.InvariantCulture for string conversion cases and then convert to local culture for display purposes as necessary. DateTime itself is culture-independent so converting between cultures is very easy.

Rounding up a time to the nearest hour

ok basically I have a program that is re-writing text files and formatting them through various conditions, one of the conditions is that the date and time values in my original text file needs to be removed from its current location and moved into a new column I have created, this is done with the code below. I used a regex to find the date and time format and then remove it from its current location and store the value in a variable that I can use later...
if (line.Contains(date))
{
string pattern = #"(\d{2}:\d{2}:\d{2}\s?\d{2}/\d{2}/\d{4})";
string input = line;
string replacement = "";
Regex rgx = new Regex(pattern);
date1 = rgx.Match(input).ToString();
string result = rgx.Replace(input, replacement);
line = result;
}
This new value that is returned gets both the time and date values but only as one string, so I then used a split (shown below) to get the two values separate, now split[0] is my time variable (00/00/00 format) - which I now need to round up to the nearest hour. I am really not sure how to go about this, any ideas ?
string[] split = date1.Split(' ');
writer.WriteLine(split[0] + "\t" + split[1] + "\t" + line);

Get that date from the string into a DateTime struct. See for example the TryParseExact method
Then you can create a new DateTime value, based on year/month/day/hour of the value from the previous step, setting the minute and second parts to zero (see here )
Add one hour if the minutes or seconds part (of your first value) is not zero, using .AddHours(1), which returns a new DateTime value.
EDIT
Some sample code:
string inputdate = "2:56:30 8/7/2014";
DateTime dt;
System.Globalization.CultureInfo enUS = new System.Globalization.CultureInfo("en-US");
if (DateTime.TryParseExact(inputdate, "H:m:s d/M/yyyy", // hours:minutes:seconds day/month/year
enUS, System.Globalization.DateTimeStyles.None, out dt))
{
// 'dt' contains the parsed date: "8-7-2014 02:56:30"
DateTime rounded = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, 0, 0);
if (dt.Minute > 0 || dt.Second > 0) // or just check dt.Minute >= 30 for regular rounding
rounded = rounded.AddHours(1);
// 'rounded' now contains the date rounded up: "8-7-2014 03:00:00"
}
else
{
// not a correct date
}

In my case, I need to round it to lower hour, and I used this logic:
DateTime x = new DateTime();
x = x.Date.AddHours(x.Hour);

You can try one liner solution to convert your DateTime to nearest hour,
//Input DateTime
DateTime input = DateTime.ParseExact("28/05/2021 2:16 PM", "dd/MM/yyyy h:mm tt", CultureInfo.InvariantCulture);
//Ternary Operation
var output = input.Minute > 30 //Check if mins are greater than 30
? input.AddHours(1).AddMinutes(-input.Minute) //if yes, then add one hour and set mins to zero
: input.AddMinutes(-input.Minute); //otherwise set mins to zero
Console.WriteLine(result.ToString());
Try Online: .NET Fiddle

Can you convert the string to a datetime?
Something like:
dateVariable = Convert.ToDateTime(dateString);
int hour = dateVariable.Hour;
int minute = dateVariable.Minute;
And then do the rounding.

Now as you have
string[] str = split[1].Split('/');
// create a new DateTime
int minutes = int.Parse(str[1]);
if(minutes >= 30)
hour = int.Parse(str[0]) + 1 // make sure if it 13 or 25 make it 1
minutes = 0 ;
sec = 0;
else {
hour = int.Parse(str[0]);
minutes = 0 ;
sec = 0 ;
}
var myDate = new Date(Year, month , day , hour , minutes , sec);

In C#
var Now = DateTime.Now;
var Nearest = Now.Date;
Nearest = Nearest.AddHours(Now.Hour + (Now.Minute >= 30 ? 1 : 0));
Now = Current time
Nearest = Rounded to the nearest hour