/// <summary>
/// Generates a fake object of <typeparamref name="T"/> using the specified rules in this
/// <seealso cref="Faker{T}"/>.
/// </summary>
/// <param name="ruleSets">A comma separated list of rule sets to execute.
/// Note: The name `default` is the name of all rules defined without an explicit rule set.
/// When a custom rule set name is provided in <paramref name="ruleSets"/> as parameter,
/// the `default` rules will not run. If you want rules without an explicit rule set to run
/// you'll need to include the `default` rule set name in the comma separated
/// list of rules to run. (ex: "ruleSetA, ruleSetB, default")
/// </param>
public virtual T Generate(string ruleSets = null)
{
Func <Faker, T> createRule = null;
var cleanRules = ParseDirtyRulesSets(ruleSets);
if (string.IsNullOrWhiteSpace(ruleSets))
{
createRule = CreateActions[Default];
}
else
{
var firstRule = cleanRules[0];
createRule = CreateActions.TryGetValue(firstRule, out createRule) ? createRule : CreateActions[Default];
}
//Issue 143 - We need a new FakerHub context before calling the
// constructor. Associated Issue 57: Again, before any
// rules execute, we need a context to capture IndexGlobal
// and IndexFaker variables.
FakerHub.NewContext();
var instance = createRule(this.FakerHub);
PopulateInternal(instance, cleanRules);
return(instance);
}
/// <summary>
/// Given an instance of T, populate it with the desired rule sets.
/// </summary>
protected virtual void PopulateInternal(T instance, string[] ruleSets)
{
ValidationResult vr = null;
if (!IsValid.HasValue)
{
//run validation
vr = ValidateInternal(ruleSets);
this.IsValid = vr.IsValid;
}
if (!IsValid.GetValueOrDefault())
{
throw MakeValidationException(vr ?? ValidateInternal(ruleSets));
}
var typeProps = TypeProperties;
lock (Randomizer.Locker.Value)
{
//Issue 57 - Make sure you generate a new context
//before executing any rules.
FakerHub.NewContext();
foreach (var ruleSet in ruleSets)
{
if (this.Actions.TryGetValue(ruleSet, out var populateActions))
{
foreach (var action in populateActions.Values)
{
typeProps.TryGetValue(action.PropertyName, out MemberInfo member);
var valueFactory = action.Action;
if (member != null)
{
var prop = member as PropertyInfo;
prop?.SetValue(instance, valueFactory(FakerHub, instance), null);
var field = member as FieldInfo;
field?.SetValue(instance, valueFactory(FakerHub, instance));
}
else // member would be null if this was an RuleForObject.
{
//Invoke this if this is a basic rule which does not select a property or a field.
var outputValue = valueFactory(FakerHub, instance);
}
}
}
}
foreach (var ruleSet in ruleSets)
{
if (this.FinalizeActions.TryGetValue(ruleSet, out FinalizeAction <T> finalizer))
{
finalizer.Action(this.FakerHub, instance);
}
}
}
}
private void PopulateInternal(T instance, string[] ruleSets)
{
if (!IsValid.HasValue)
{
//run validation
this.IsValid = ValidateInternal(ruleSets).IsValid;
}
if (!IsValid.GetValueOrDefault())
{
throw new InvalidOperationException($"StrictMode validation failure on {typeof(T)}. The Binder found {TypeProperties.Count} properties/fields but have different number of actions rules. Also, check RuleSets.");
}
var typeProps = TypeProperties;
lock (Randomizer.Locker.Value)
{
//Issue 57 - Make sure you generate a new context
//before executing any rules.
FakerHub.NewContext();
foreach (var ruleSet in ruleSets)
{
if (this.Actions.TryGetValue(ruleSet, out var populateActions))
{
foreach (var action in populateActions.Values)
{
typeProps.TryGetValue(action.PropertyName, out MemberInfo member);
var valueFactory = action.Action;
if (member != null)
{
var prop = member as PropertyInfo;
prop?.SetValue(instance, valueFactory(FakerHub, instance), null);
var field = member as FieldInfo;
field?.SetValue(instance, valueFactory(FakerHub, instance));
}
else // member would be null if this was an RuleForObject.
{
//Invoke this if this is a basic rule which does not select a property or a field.
var outputValue = valueFactory(FakerHub, instance);
}
}
}
}
foreach (var ruleSet in ruleSets)
{
if (this.FinalizeActions.TryGetValue(ruleSet, out FinalizeAction <T> finalizer))
{
finalizer.Action(this.FakerHub, instance);
}
}
}
}
private void PopulateInternal(T instance, string[] ruleSets)
{
if (!IsValid.HasValue)
{
//run validation
this.IsValid = ValidateInternal(ruleSets).IsValid;
}
if (!IsValid.GetValueOrDefault())
{
throw new InvalidOperationException($"StrictMode validation failure on {typeof(T)}. The Binder found {TypeProperties.Count} properties/fields but have different number of actions rules. Also, check RuleSets.");
}
var typeProps = TypeProperties;
lock (Randomizer.Locker.Value)
{
//Issue 57 - Make sure you generate a new context
//before executing any rules.
FakerHub.NewContext();
foreach (var ruleSet in ruleSets)
{
Dictionary <string, PopulateAction <T> > populateActions;
if (this.Actions.TryGetValue(ruleSet, out populateActions))
{
foreach (var action in populateActions.Values)
{
MemberInfo member;
typeProps.TryGetValue(action.PropertyName, out member);
var valueFactory = action.Action;
var prop = member as PropertyInfo;
prop?.SetValue(instance, valueFactory(FakerHub, instance), null);
var field = member as FieldInfo;
field?.SetValue(instance, valueFactory(FakerHub, instance));
}
}
}
foreach (var ruleSet in ruleSets)
{
FinalizeAction <T> finalizer;
if (this.FinalizeActions.TryGetValue(ruleSet, out finalizer))
{
finalizer.Action(this.FakerHub, instance);
}
}
}
}
/// <summary>
/// Only populates an instance of T.
/// </summary>
public virtual void Populate(T instance)
{
var useStrictMode = UseStrictMode ?? Faker.DefaultStrictMode;
if (useStrictMode && !IsValid.HasValue)
{
//run validation
this.IsValid = Validate();
}
if (useStrictMode && !IsValid.GetValueOrDefault())
{
throw new InvalidOperationException($"StrictMode validation failure on {typeof(T)}. The Binder found {TypeProperties.Count} properties/fields but have {Actions.Count} actions rules.");
}
var typeProps = TypeProperties;
lock (Randomizer.Locker.Value)
{
foreach (var kvp in Actions)
{
MemberInfo member;
typeProps.TryGetValue(kvp.Key, out member);
var valueFactory = kvp.Value;
var prop = member as PropertyInfo;
prop?.SetValue(instance, valueFactory(FakerHub, instance), null);
var field = member as FieldInfo;
field?.SetValue(instance, valueFactory(FakerHub, instance));
}
FinalizeAction?.Invoke(this.FakerHub, instance);
FakerHub.NewContext();
}
}
