Yamato Daiwa CS(harp) extensions

The extensions of the standard classes

DateOnly

• DateOnly CreateDateOnlyFromISO8601_String(string ISO8601_String)
• string ToISO8601_String()

DateTime

• DateOnly CreateDateOnlyFromISO8601_String(string ISO8601_String)
• string ToISO8601_String()

EmailAddress

Public static fields

Name	VALID_PATTERN
Type	Regex
Is readonly	Yes

Contains the regular expression of the valid email address according w3resource.com.

Public static methods

• bool IsValid(string potentialEmail)

Array

• TElement[] LogEachElement<TElement>(Action<TElement>? logger = null)

Dictionary

• Dictionary<TKey, TValue> SetPairIfValueNotIsNull<TKey, TValue>
• SetPairIf
  • Dictionary<TKey, TValue> SetPairIf<TKey, TValue>(TKey key, TValue value, bool condition) where TKey : notnull
  • Dictionary<TKey, TValue> SetPairIf<TKey, TValue>(TKey key, TValue value, Func<TKey, TValue, bool> condition) where TKey : notnull

List

• List<TElement> AddElementsToStart<TElement> (params TElement[] newElements)
• List<TElement> AddElementsToEnd<TElement> (params TElement[] newElements)
• List<TElement?> AddElementToEndIfNotNull<TElement>(TElement? newElement)
• AddElementToEndIf
  • List<TElement> AddElementToEndIf<TElement>(TElement newElement, bool condition)
  • List<TElement> AddElementToEndIf<TElement>(TElement newElement, Func<TElement?, bool> condition)
• StringifyEachElementAndJoin<TElement>(string separator)
• ReplaceArrayElementsByPredicate
  • List<TElement> ReplaceArrayElementsByPredicate<TElement>(Func<TElement, bool> predicate, TElement newElement, bool mustReplaceOnlyFirstOne)
  • List<TElement> ReplaceArrayElementsByPredicate<TElement>(Func<TElement, bool> predicate, Func<TElement, TElement> replacer, bool mustReplaceOnlyFirstOne)
• List<TElement> LogEachElement<TElement>(Action<TElement>? logger = null)

Number

• bool IsValueOfAnyNumericType(object value)

String

• bool IsNonEmpty()
• string ToUpperCamelCase()
• string ToLowerCamelCase()
• string RemoveAllSpecifiedCharacters(char[] charactersToRemove)

Random values generators (RandomValuesGenerator class)

• bool GetRandomBoolean()
• byte GetRandomByte(byte minimalValue = Byte.MinValue, byte maximalValue = Byte.MaxValue)
• ushort GetRandomUShort(ushort minimalValue = ushort.MinValue, ushort maximalValue = ushort.MaxValue)
• TArrayElement GetRandomArrayElement<TArrayElement>(TArrayElement[] targetArray)
• DateOnly GetRandomDate(DateOnly earliestDate, DateOnly latestDate)
• DateTime GetRandomDateTime(DateOnly earliestDate, DateOnly latestDate)

Data mocking

DataMocking class

NullablePropertiesDecisionStrategies enumeration

Enumeration element	Description
mustGenerateAll	All nullable (optional) properties must be generated except the cases of incompatible properties.
mustGenerateWith50PercentageProbabilityIfHasNotBeenPreDefined	Nullable (optional) properties must be generated with 50% probability.
mustSkipIfHasNotBeenPreDefined	Nullable (optional) properties must not be randomly generated.

DecideOptionalValue static method and NullablePropertiesDecisionSourceDataAndOptions structure

TValueType? DecideOptionalValue<TValueType>(NullablePropertiesDecisionSourceDataAndOptions<TValueType> sourceDataAndOptions)

struct NullablePropertiesDecisionSourceDataAndOptions<TPropertyType>
{
  public required NullablePropertiesDecisionStrategies Strategy { get; init; }
  public required Func<TPropertyType> RandomValueGenerator? { get; init; }
  public TPropertyType? PreDefinedValue { get; init; }
}

Decides, will nullable (optional) value be available or no, and if yes, returns this value. Intended to be used when generating the properties for the class / structure.

The decision will depend mainly on specified nullable property decision strategy:

Enumeration element	Description
mustGenerateAll	If target nullable property has not been predefined via NullablePropertiesDecisionStrategies.PreDefinedValue, it will be generated by specified RandomValueGenerator. It means the RandomValueGenerator must be specified for this strategy, otherwise ArgumentException will be thrown.
mustGenerateWith50PercentageProbabilityIfHasNotBeenPreDefined	If target nullable property has been predefined via NullablePropertiesDecisionStrategies.PreDefinedValue, this value will be returned otherwise will be generated by specified RandomValueGenerator with probability 50%. It means the RandomValueGenerator must be specified for this strategy, otherwise ArgumentException will be thrown.
mustSkipIfHasNotBeenPreDefined	If target nullable property has not been predefined via NullablePropertiesDecisionStrategies.PreDefinedValue, no random value will be generated. Only for the strategy RandomValueGenerator should be omitted.

Errors classes

Error class	Usage
DataRetrievingFailedException	Intended to be used when the data retrieving from some external resource (server, database, file, etc.) failed.
DataSubmittingFailedException	Intended to be used when the data submitting to any external resource (server, database, etc.) failed.

MockGatewayHelper class

When mock the asynchronous data transactions, takes care about such routines as

1. Randomizing of the pending interval
2. Simulation of the error
3. Logging

Public static methods

SetLogger

void SetLogger(Log log)
    
delegate void Log(string message) 

Adds the logging method which will be invoked if the logging will be demanded in other methods.

SimulateDataRetrieving

Task<TResponseData> SimulateDataRetrieving<TRequestParameters, TResponseData>(
  TRequestParameters requestParameters,
  Func<TResponseData> getResponseData,
  SimulationOptions options
)

where the SimulationOptions is the associated structure will be described below.

SimulateDataSubmitting

Task<TResponseData> SimulateDataSubmitting<TRequestData, TResponseData>(
  TRequestData requestData,
  Func<TResponseData> getResponseData,
  SimulationOptions options
)

It's behaviour is almost even with SimulateDataRetrieving, but there are some differences:

• The logging
• DataSubmittingFailedException will be thrown instead of DataRetrievingFailedException when error simulation mode is enabled.

Associated structure SimulationOptions

public struct SimulationOptions
{
  public ushort? MinimalPendingPeriod__Seconds { get; init; }
  public ushort? MaximalPendingPeriod__Seconds { get; init; }
  public bool MustSimulateError { get; init; }
  public bool MustLogResponseData { get; init; }
  public required string GatewayName { get; init; }
  public required string TransactionName { get; init; }
}

MinimalPendingPeriod__Seconds

Type	ushort
Default value	1
Use case	If you want to see the loading placeholder for a while, increase this value.

MaximalPendingPeriod__Seconds

Type	ushort
Default value	2
Use case	If you want to see the loading placeholder for a while, increase this value.

MustSimulateError

Type	bool
Default value	false
Use case	If you want to check is the error message displays correctly in your GUI, set this flag to true.

MustSimulateError

Type	bool
Is required	Yes

MustLogResponseData

Type	bool
Is required	Yes
Note	System.Text.Json.JsonSerializer will be used for serializing.

GatewayName

Type	bool
Is required	Yes
Note	Used for logging only. "Gateway" could be called "service" or somehow else in your code.

TransactionName

Type	bool
Is required	Yes
Note	Used for logging only.