public void StringTemplateValueConverter_Caches_And_Reuses_Converters_And_Behaves_Properly_When_Caches_Are_Cleared()
{
StringTemplate.ClearCache(); // Make sure we don't use instances from other tests...
var values = new ValuesWithMiscConverters {
AttributedWithStateMutatorConverter = 0
};
var otherValues = new OtherValuesWithMiscConverters {
AttributedWithStateMutatorConverter2 = 0
};
string actual1 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
string actual2 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
// Clear the cached getters and converters.
// This test will fail if the getters cache is cleared, but not the converters cache.
StringTemplate.ClearCache();
string actual3 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
string actual4 = StringTemplate.Format("{AttributedWithStateMutatorConverter2}", otherValues);
// The converter instance should be reused, so its state is preserved and incremented between calls
Assert.Equal("1", actual1);
Assert.Equal("2", actual2);
Assert.Equal("1", actual3);
Assert.Equal("2", actual4); // tests caching across types and members
}
public void Should_Throw_When_Converter_CanConvert_Is_False()
{
var values = new ValuesWithMiscConverters {
AttributedWithConverterHavingCanConvertAlwaysFalse = 0
};
Assert.Throws <NotSupportedException>(() => StringTemplate.Format("{AttributedWithConverterHavingCanConvertAlwaysFalse}", values));
}
public void Should_Throw_When_Attribute_Has_Null_Converter_Type()
{
var values = new ValuesWithMiscConverters {
AttributedWithNullConverterType = 0
};
Assert.Throws <InvalidOperationException>(() => StringTemplate.Format("{AttributedWithNullConverterType}", values));
}
public void Generic_Converter_CanConvert_Allows_Derived_Type()
{
var values = new ValuesWithMiscConverters {
StringArrayWithReadOnlyCollectionConverter = StringCollectionValues
};
string actual = StringTemplate.Format("{StringArrayWithReadOnlyCollectionConverter}", values);
Assert.Equal(ExpectedStringCollectionConcatenation, actual);
}
public void Generic_Converter_Allows_Null_Values(object input, bool expectedResult)
{
var values = new ValuesWithMiscConverters {
AttributedWithNullToBoolConverter = input
};
string actual = StringTemplate.Format("{AttributedWithNullToBoolConverter}", values);
Assert.Equal(expectedResult, bool.Parse(actual));
}
public void StringTemplateValueConverter_Caches_And_Reuses_Converters()
{
StringTemplate.ClearCache(); // Make sure we don't use instances from other tests...
var values = new ValuesWithMiscConverters {
AttributedWithStateMutatorConverter = 0
};
var otherValues = new OtherValuesWithMiscConverters {
AttributedWithStateMutatorConverter2 = 0
};
string actual1 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
string actual2 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
string actual3 = StringTemplate.Format("{AttributedWithStateMutatorConverter}", values);
string actual4 = StringTemplate.Format("{AttributedWithStateMutatorConverter2}", otherValues);
// The converter instance should be reused, so its state is preserved and incremented between calls
Assert.Equal("1", actual1);
Assert.Equal("2", actual2);
Assert.Equal("3", actual3);
Assert.Equal("4", actual4); // tests caching across types and members
}
