public void When_getting_properties_of_known_instance_but_unknown_property_type()
{
var instance = new Person();
instance.Name.ShouldBeNull();
instance.Name = "Foo";
instance.Name.ShouldBe("Foo");
var nameGetter = AccessorBuilder.BuildGetter <Person>("Name");
nameGetter(instance).ShouldBe("Foo");
instance.Name.ShouldBe("Foo");
instance.GetJob().ShouldBeNull();
var jobSetter = AccessorBuilder.BuildSetter <Person>("Job", true);
jobSetter(instance, "Baz");
instance.GetJob().ShouldBe("Baz");
var jobGetter = AccessorBuilder.BuildGetter <Person>("Job", true);
jobGetter(instance).ShouldBe("Baz");
}
public void When_getting_properties_of_unknown_instance_and_property_type()
{
var instance = new Person();
instance.Name.ShouldBeNull();
instance.Name = "Foo";
instance.Name.ShouldBe("Foo");
PropertyInfo nameProp;
typeof(Person).TryGetInstanceProperty("Name", out nameProp).ShouldBeTrue();
var nameGetter = AccessorBuilder.BuildGetter(nameProp);
nameGetter(instance).ShouldBe("Foo");
instance.Name.ShouldBe("Foo");
instance.GetJob().ShouldBeNull();
PropertyInfo jobProp;
typeof(Person).TryGetInstanceProperty("Job", out jobProp).ShouldBeTrue();
var jobSetter = AccessorBuilder.BuildSetter(jobProp, true);
jobSetter(instance, "Baz");
instance.GetJob().ShouldBe("Baz");
var jobGetter = AccessorBuilder.BuildGetter(jobProp, true);
jobGetter(instance).ShouldBe("Baz");
}
public void When_checking_invalid_input()
{
string nullStr = null;
PropertyInfo nullPropInfo = null;
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildSetter <Person, string>(nullStr))
.Message.ShouldBe("String must not be null, empty or whitespace.");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildSetter <Person, string>(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildGetter <Person, string>(nullStr))
.Message.ShouldBe("String must not be null, empty or whitespace.");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildGetter <Person, string>(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildSetter <Person>(nullStr))
.Message.ShouldBe("String must not be null, empty or whitespace.");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildSetter <Person>(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildGetter <Person>(nullStr))
.Message.ShouldBe("String must not be null, empty or whitespace.");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildGetter <Person>(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildSetter(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
Should.Throw <ArgumentException>(() => AccessorBuilder.BuildGetter(nullPropInfo))
.Message.ShouldBe("Value cannot be null.\r\nParameter name: propertyInfo");
}
public void When_getting_getters_class()
{
var nameGetterOne = AccessorBuilder.BuildGetter <Person, string>("Name");
var nameGetterTwo = AccessorBuilder.BuildGetter <Person, string>("Name");
nameGetterOne.ShouldNotBeSameAs(nameGetterTwo);
var jobGetter = AccessorBuilder.BuildGetter <Person, string>("Job", true);
jobGetter.ShouldNotBe(nameGetterOne);
jobGetter.ShouldNotBe(nameGetterTwo);
}
public void When_getting_properties_of_known_instance_but_unkonnown_property_type_of_a_struct()
{
var instance = new Struct();
instance.SomeString.ShouldBeNull();
instance.SomeString = "Foo";
instance.SomeString.ShouldBe("Foo");
var propGetter = AccessorBuilder.BuildGetter <Struct>("SomeString");
propGetter(instance).ShouldBe("Foo");
instance.SomeString.ShouldBe("Foo");
}
public void When_getting_properties_of_unknown_instance_and_property_type_of_a_struct()
{
var instance = new Struct();
instance.SomeString.ShouldBeNull();
instance.SomeString = "Foo";
instance.SomeString.ShouldBe("Foo");
PropertyInfo nameProp;
typeof(Struct).TryGetInstanceProperty("SomeString", out nameProp).ShouldBeTrue();
var nameGetter = AccessorBuilder.BuildGetter(nameProp);
nameGetter(instance).ShouldBe("Foo");
instance.SomeString.ShouldBe("Foo");
}
/// <summary>
/// Compares the values of all the properties for the given
/// <paramref name="left"/> and <paramref name="right"/> and returns the variance.
/// </summary>
public bool Compare <T>(T left, T right, bool inherit, bool includePrivate,
out IEasyDictionary <PropertyInfo, Variance> variances)
{
var type = typeof(T);
var key = new CacheKey(type, inherit, includePrivate);
var cache = _cache.GetOrAdd(key, () =>
{
return(type.GetInstanceProperties(inherit, includePrivate)
.Select(p => new KeyValuePair <PropertyInfo, object>(p, AccessorBuilder.BuildGetter <T>(p, includePrivate))));
});
var bothMatch = true;
var result = new EasyDictionary <PropertyInfo, Variance>(variance => variance.Property);
foreach (var pair in cache)
{
var p = pair.Key;
var getter = (Func <T, object>)pair.Value;
var leftVal = getter(left);
var rightVal = getter(right);
var variance = new Variance(p, leftVal, rightVal);
result.Add(variance);
if (!bothMatch)
{
continue;
}
if (variance.Varies)
{
bothMatch = false;
}
}
variances = result;
return(bothMatch);
}
