public void TestMathCoreStandardToCcss()
        {
            StandardIdentifier identifier = StandardIdentifierTranslation.MathCoreStandardToCcss(new string[] { "4-6", "NS", "3-6", "m", "6.NS.6c" });

            Assert.Equal("4-6", identifier.Claim);
            Assert.Equal("3-6", identifier.Target);
            Assert.Equal("6.NS.6c", identifier.CommonCoreStandard);
            Assert.Equal("NS", identifier.ContentDomain);
            Assert.Equal("MATH", identifier.SubjectCode);
        }
        public void TestInvalidMathCoreStandardToCcss()
        {
            StandardIdentifier identifier = StandardIdentifierTranslation.MathCoreStandardToCcss(new string[] { });

            Assert.Null(identifier);
        }