public void Configuration_Ctor_ExclusiveRequirementsSupplied_Multiple_ThrowsAggregate()
{
const int numberOfConflictingRequirements = 5;
List <IConfigurationRequirement> requirements =
new List <IConfigurationRequirement>()
{
TestUtil.CreateConfigurationRequirement()
};
for (int counter = 0; counter < numberOfConflictingRequirements; counter++)
{
requirements.Add(TestUtil.CreateConfigurationRequirement(
exclusiveWith: new IConfigurationRequirement[] { requirements.Last() }));
}
Dictionary <IConfigurationRequirement, object> values = requirements
.Select(x => new KeyValuePair <IConfigurationRequirement, object>(
x,
TestUtil.GetDefaultValidObjectForRequirement(x)))
.ToDictionary(x => x.Key, x => x.Value);
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(requirements.ToArray());
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(configurable, values));
Assert.AreEqual(numberOfConflictingRequirements, exception.InnerExceptions.Count);
Assert.IsTrue(
exception
.InnerExceptions
.Select(x => x.Message)
.All(x => x.Contains("has conflicting requirements specified.")),
"Unexpected exception message encountered.");
}
public void Configuration_CanBeEnumerated_Succeeds()
{
const int numberOfRequirements = 50;
IConfigurationRequirement[] requirements = TestUtil
.CreateIConfigurationRequirementCollection(numberOfRequirements, randomTypes: true)
.ToArray();
Dictionary <IConfigurationRequirement, object> supplied = requirements
.Select(x =>
new KeyValuePair <IConfigurationRequirement, object>(
x,
TestUtil.GetDefaultValidObjectForRequirement(x)))
.ToDictionary(x => x.Key, x => x.Value);
IMapping[] expected = supplied.Select(x => new Mapping(x.Key, x.Value)).ToArray();
IRequirementSource requirementSource = ConfigurationTests.CreateRequirementSource(requirements);
IConfiguration configuration = new Configuration(requirementSource, supplied);
IMapping[] actual = configuration.ToArray();
CollectionAssert.AreEquivalent(expected, actual);
}
public void Configuration_Ctor_RequiredDependsOnMissing_MultipleMissing_ThrowsAggregate()
{
const int numberOfMissingDependedUpons = 5;
IConfigurationRequirement[] dependedUpons = Enumerable
.Range(1, numberOfMissingDependedUpons)
.Select(x => TestUtil.CreateConfigurationRequirement(isOptional: true))
.ToArray();
IConfigurationRequirement[] dependsOns = dependedUpons
.Select(x => TestUtil.CreateConfigurationRequirement(dependsOn: new IConfigurationRequirement[] { x }))
.ToArray();
Dictionary <IConfigurationRequirement, object> values = dependsOns
.Select(x => new KeyValuePair <IConfigurationRequirement, object>(
x,
TestUtil.GetDefaultValidObjectForRequirement(x)))
.ToDictionary(x => x.Key, x => x.Value);
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(dependsOns);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(configurable, values));
Assert.AreEqual(numberOfMissingDependedUpons, exception.InnerExceptions.Count);
Assert.IsTrue(
exception
.InnerExceptions
.Select(x => x.Message)
.All(x => x.Contains("does not have its dependencies fulfilled.")),
"Unexpected exception message encountered.");
}
public void Configuration_Ctor_MultipleFailuresOccur_ThrowsAggregateException()
{
const string validationFailureMessage = "BOUNDCONFIGURATIONTESTS_MultipleFailuresOccur";
const string testFailureMessage = "Missing/too many matches for expected exception.";
const int expectedFailureCount = 4;
IConfigurationRequirement requiredButMissing = TestUtil.CreateConfigurationRequirement(
baseName: nameof(requiredButMissing),
isOptional: false);
IConfigurationRequirement dependsOnIsMissing = TestUtil.CreateConfigurationRequirement(
baseName: nameof(dependsOnIsMissing),
dependsOn: new IConfigurationRequirement[] { requiredButMissing });
IConfigurationRequirement failsValidation = TestUtil.CreateConfigurationRequirement(
baseName: nameof(failsValidation),
validator: (x, y, z) => throw new NotImplementedException(validationFailureMessage));
IConfigurationRequirement exclusiveWith = TestUtil.CreateConfigurationRequirement(
baseName: nameof(exclusiveWith),
exclusiveWith: new IConfigurationRequirement[] { failsValidation });
IConfigurationRequirement isFine = TestUtil.CreateConfigurationRequirement(
baseName: nameof(isFine),
validator: (x, y, z) => null);
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(
requiredButMissing,
dependsOnIsMissing,
failsValidation,
exclusiveWith,
isFine);
Dictionary <IConfigurationRequirement, object> bindings =
new IConfigurationRequirement[] { dependsOnIsMissing, failsValidation, exclusiveWith, isFine }
.Select(x => new KeyValuePair <IConfigurationRequirement, object>(x, null))
.ToDictionary(x => x.Key, x => x.Value);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(configurable, bindings));
Assert.AreEqual(expectedFailureCount, exception.InnerExceptions.Count);
Assert.IsNotNull(
exception
.InnerExceptions
.SingleOrDefault(x => x.Message.Contains(validationFailureMessage)),
testFailureMessage);
Assert.IsNotNull(
exception
.InnerExceptions
.SingleOrDefault(x => x.Message.Contains("has conflicting requirements specified.")),
testFailureMessage);
Assert.IsNotNull(
exception
.InnerExceptions
.SingleOrDefault(x => x.Message.Contains("does not have its dependencies fulfilled.")),
testFailureMessage);
Assert.IsNotNull(
exception
.InnerExceptions
.SingleOrDefault(x => x.Message.Contains("Missing required requirement")),
testFailureMessage);
}
public void Configuration_Ctor_RequiredRequirementIsNotPresent_ThrowsAggregate()
{
IConfigurationRequirement required =
TestUtil.CreateConfigurationRequirement(isOptional: false);
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(required);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(configurable, new Dictionary <IConfigurationRequirement, object>()));
Assert.AreEqual(1, exception.InnerExceptions.Count);
StringAssert.Contains(exception.InnerExceptions.Single().Message, "Missing required requirement");
}
private static Configuration CreateConfiguration(
Func <IConfigurationRequirement, object> valueFactory,
out IConfigurationRequirement requirement,
Func <IConfigurationRequirement> requirementFactory = null)
{
requirement = (requirementFactory ?? (() => TestUtil.CreateConfigurationRequirement())).Invoke();
Dictionary <IConfigurationRequirement, object> bindings =
new Dictionary <IConfigurationRequirement, object>()
{
[requirement] = valueFactory.Invoke(requirement)
};
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(requirement);
return(new Configuration(configurable, bindings));
}
public void Configuration_Indexer_Get_Succeeds()
{
IConfigurationRequirement requirement = TestUtil.CreateConfigurationRequirement();
object expected = TestUtil.GetDefaultValidObjectForRequirement(requirement);
Dictionary <IConfigurationRequirement, object> bindings =
new Dictionary <IConfigurationRequirement, object>()
{
[requirement] = expected
};
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(requirement);
Configuration configuration = new Configuration(configurable, bindings);
Assert.AreEqual(expected, configuration[requirement]);
}
public void Configuration_GetOrDefault_ValueNotPresent_UsesValueFactory()
{
const string fallbackValue = "Configuration_GetOrDefault";
IConfigurationRequirement present = TestUtil.CreateConfigurationRequirement();
IConfigurationRequirement notPresent = TestUtil.CreateConfigurationRequirement(isOptional: true);
object expected = TestUtil.GetDefaultValidObjectForRequirement(present);
Dictionary <IConfigurationRequirement, object> bindings =
new Dictionary <IConfigurationRequirement, object>()
{
[present] = expected
};
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(notPresent);
Configuration configuration = new Configuration(configurable, bindings);
Assert.AreEqual(fallbackValue, configuration.GetOrDefault(notPresent, () => fallbackValue));
}
public void Configuration_Ctor_RequirementFailsValidation_ThrowsAggregate()
{
const string exceptionMessage = "BOUNDCONFIGURATIONTESTS_RequirementFailsValidation";
IConfigurationRequirement required = TestUtil.CreateConfigurationRequirement(
validator: (x, y, z) => throw new NotImplementedException(exceptionMessage));
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(required);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(
configurable,
new Dictionary <IConfigurationRequirement, object>()
{
[required] = "dontCare"
}));
Assert.AreEqual(1, exception.InnerExceptions.Count);
Assert.AreEqual(exceptionMessage, exception.InnerExceptions.Single().Message);
}
public void Configuration_Ctor_RequirementDependsOnMissing_ThrowsAggregate()
{
// dependedUpon needs to be optional or we'll get two errors (because required requirement is missing).
IConfigurationRequirement dependedUpon = TestUtil.CreateConfigurationRequirement(isOptional: true);
IConfigurationRequirement dependsOn = TestUtil.CreateConfigurationRequirement(
type: ConfigurationRequirementType.String,
dependsOn: new IConfigurationRequirement[] { dependedUpon });
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(dependedUpon, dependsOn);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(
configurable,
new Dictionary <IConfigurationRequirement, object>()
{
[dependsOn] = "Passes validation"
}));
Assert.AreEqual(1, exception.InnerExceptions.Count);
StringAssert.Contains(
exception.InnerExceptions.Single().Message,
"does not have its dependencies fulfilled.");
}
public void Configuration_Ctor_ExclusiveRequirementsSupplied_ThrowsAggregate()
{
IConfigurationRequirement first = TestUtil.CreateConfigurationRequirement(
type: ConfigurationRequirementType.String);
IConfigurationRequirement second = TestUtil.CreateConfigurationRequirement(
type: ConfigurationRequirementType.String,
exclusiveWith: new IConfigurationRequirement[] { first });
IRequirementSource configurable = ConfigurationTests.CreateRequirementSource(first, second);
AggregateException exception = Assert.ThrowsException <AggregateException>(() =>
new Configuration(
configurable,
new Dictionary <IConfigurationRequirement, object>()
{
[first] = "Passes validation",
[second] = "Also passes validation"
}));
Assert.AreEqual(1, exception.InnerExceptions.Count);
StringAssert.Contains(
exception.InnerExceptions.Single().Message,
"has conflicting requirements specified.");
}
public MockConfigurator(IRequirementSource source, ConfigureFunc configureFunc)
{
this.source = source;
this.configureFunc = configureFunc;
}
public Configuration(
IRequirementSource requirementSource,
IReadOnlyDictionary <IConfigurationRequirement, object> mappings,
IConfigurator configurator = null)
{
if (requirementSource == null)
{
throw new ArgumentNullException(nameof(requirementSource));
}
if (mappings == null)
{
throw new ArgumentNullException(nameof(mappings));
}
if (requirementSource.Requirements == null)
{
throw new InvalidRequirementsException(
Configuration.ConfigurationRequirementsMustNotBeNull,
nameof(requirementSource));
}
Dictionary <IConfigurationRequirement, object> backingDictionary =
mappings.ToDictionary(x => x.Key, x => x.Value);
List <Exception> failures = new List <Exception>();
// Check for missing requirements.
failures.AddRange(requirementSource
.Requirements
.Where(x => !x.IsOptional && !backingDictionary.Keys.Contains(x))
.Select(x => new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Configuration.MissingRequirement,
x.Name))));
// Check for DependsOn failures.
IConfigurationRequirement[] dependsOnFailures = backingDictionary
.Keys
.Where(x => x.DependsOn.Any(y => !mappings.Keys.Contains(y)))
.ToArray();
failures.AddRange(dependsOnFailures
.Select(x => new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Configuration.DependenciesNotSatisfied,
x.Name))));
// Check for ExclusiveWith failures.
IConfigurationRequirement[] exclusiveConflicts = backingDictionary
.Keys
.Where(x => x.ExclusiveWith.Any(y => mappings.Keys.Contains(y)))
.ToArray();
failures.AddRange(exclusiveConflicts
.Select(x => new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
Configuration.ConflictingRequirementsSpecified,
x.Name))));
// Remove ExclusiveWith/DependsOn errors from the set of validations to execute.
foreach (IConfigurationRequirement cantValidate in exclusiveConflicts.Concat(dependsOnFailures))
{
backingDictionary.Remove(cantValidate);
}
// Validate the remaining requirements.
// We can only reach this after removing all requirements that don't have their prerequisites.
// We need to determine what "level" in the heirarchy each requirement is at.
// If a requirement has no dependsOns, then it's at level "0" (can be immediately evaluated)
// For each requirement which has all dependsOns in the set of previously evaluated requirements, add it
// Repeat until all requirements have been added (this can always be reached, because we removed all
// requirements which didn't have all their dependsOns satisfied)
IList <IConfigurationRequirement> toEvaluate = new List <IConfigurationRequirement>();
void RecursiveAdd(
ref IList <IConfigurationRequirement> addTo,
IReadOnlyList <IConfigurationRequirement> remaining)
{
if (!remaining.Any())
{
return;
}
foreach (IConfigurationRequirement toCheck in remaining)
{
if (!toCheck.DependsOn.Any() || toCheck.DependsOn.All(x => toEvaluate.Contains(x)))
{
toEvaluate.Add(toCheck);
}
}
}
RecursiveAdd(ref toEvaluate, backingDictionary.Keys.ToList());
// We can now iterate through toEvaluate; at each requirement, we set of previously completed requirements
// will satisfy all dependsOns.
Dictionary <IConfigurationRequirement, object> completed =
new Dictionary <IConfigurationRequirement, object>();
foreach (IConfigurationRequirement requirement in toEvaluate)
{
object value = mappings[requirement];
Exception failure = requirement.Validate(
value,
new SimpleConfiguration(completed
.Where(x => requirement.DependsOn.Contains(x.Key))
.ToDictionary(x => x.Key, x => x.Value)));
if (failure == null)
{
completed.Add(requirement, value);
}
else
{
failures.Add(failure);
// This isn't really required, but just for future-proofing...
backingDictionary.Remove(requirement);
}
}
if (failures.Any())
{
throw new AggregateException(
Configuration.RequirementsFailedValidation,
failures);
}
this.backingConfiguration = new SimpleConfiguration(completed, configurator);
}
