public void Configuration_GetOrDefault_ValueFactoryNull_ThrowsArgumentNull()
{
Configuration configuration = ConfigurationTests.CreateConfiguration(
TestUtil.GetDefaultValidObjectForRequirement,
out IConfigurationRequirement requirement);
Assert.ThrowsException <ArgumentNullException>(() => configuration.GetOrDefault(requirement, null));
}
public void Configuration_TryGetOrDefault_RequirementNull_ThrowsArgumentNull()
{
Configuration configuration = ConfigurationTests.CreateConfiguration(
TestUtil.GetDefaultValidObjectForRequirement,
out IConfigurationRequirement requirement);
Assert.ThrowsException <ArgumentNullException>(
() => configuration.TryGetOrDefault <object>(null, () => null, out object dontCare));
}
public void Configuration_TryGetOrDefault_ValueNotPresent_UsesValueFactory()
{
ConfigurationRequirementType type = ConfigurationRequirementType.Uri;
Configuration configuration = ConfigurationTests.CreateConfiguration(
TestUtil.GetDefaultValidObjectForRequirement,
out IConfigurationRequirement present);
IConfigurationRequirement notPresent = TestUtil.CreateConfigurationRequirement(type: type);
Uri expected = (Uri)TestUtil.GetDefaultValidObjectForRequirement(notPresent);
Assert.IsFalse(configuration.TryGetOrDefault(notPresent, () => expected, out Uri actual));
Assert.AreEqual(expected, actual);
}
public void Configuration_TryGetOrDefault_ValuePresentButWrongType_ConversionSucceeds()
{
const long expected = 8675309L;
const int notExpected = 111111;
ConfigurationRequirementType type = ConfigurationRequirementType.Int32;
Configuration configuration = ConfigurationTests.CreateConfiguration(
x => expected,
out IConfigurationRequirement requirement,
() => TestUtil.CreateConfigurationRequirement(type: type));
Assert.IsTrue(configuration.TryGetOrDefault <long>(requirement, () => notExpected, out long actual));
Assert.AreEqual(expected, actual);
}
public void Configuration_TryGetOrDefault_ValuePresentButWrongType_ConversionFails_UsesValueFactory()
{
const string expected = "Configuration_TryGetOrDefault";
// `expected` must be of a different type than `type`
ConfigurationRequirementType type = ConfigurationRequirementType.Int32;
Configuration configuration = ConfigurationTests.CreateConfiguration(
TestUtil.GetDefaultValidObjectForRequirement,
out IConfigurationRequirement requirement,
() => TestUtil.CreateConfigurationRequirement(type: type));
Assert.IsFalse(configuration.TryGetOrDefault <string>(requirement, () => expected, out string actual));
Assert.AreEqual(expected, actual);
}
public void Configuration_GetOrDefault_Succeeds()
{
object expected = null;
Func <IConfigurationRequirement, object> valueFactory =
x =>
{
expected = TestUtil.GetDefaultValidObjectForRequirement(x);
return(expected);
};
Configuration configuration = ConfigurationTests.CreateConfiguration(
valueFactory,
out IConfigurationRequirement requirement);
Assert.AreEqual(expected, configuration.GetOrDefault(requirement, () => null));
}
public void Configuration_TryGetOrDefault_Succeeds()
{
// The type here needs to match the expected generic type used later.
ConfigurationRequirementType type = ConfigurationRequirementType.Bool;
bool expected = false;
Configuration configuration = ConfigurationTests.CreateConfiguration(
x =>
{
// Use the inverse of the default value for our expected (just in case the default somehow slips in)
expected = !(bool)TestUtil.GetDefaultValidObjectForRequirement(x);
return(expected);
},
out IConfigurationRequirement requirement,
() => TestUtil.CreateConfigurationRequirement(type: type));
Assert.IsTrue(configuration.TryGetOrDefault <bool>(requirement, () => !expected, out bool actual));
Assert.AreEqual(expected, actual);
}