Esempio n. 1
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        public void Compute_NoMatchRule_ShouldReturnInput(int input)
        {
            var ruleProvider = Substitute.For <IRuleProvider>();

            ruleProvider.Match(input).Returns(Enumerable.Empty <IRule>());

            var formatter = new FizzBuzzFormatter(ruleProvider);

            var output = formatter.Compute(input);

            Assert.Equal(input.ToString(), output);
        }
Esempio n. 2
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        public void Compute_MatchSingleRule_ShouldReturnRuleLabel()
        {
            var i            = 11;
            var expected     = "Fizz";
            var ruleProvider = Substitute.For <IRuleProvider>();
            var fizzRule     = Substitute.For <IRule>();

            fizzRule.Label.Returns(expected);
            ruleProvider.Match(i).Returns(new[] { fizzRule });

            var formatter = new FizzBuzzFormatter(ruleProvider);

            var output = formatter.Compute(i);

            Assert.Equal(expected, output);
        }
Esempio n. 3
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        public void Compute_MatchMultipleRuleWithSameLabel_ShouldReturnSingleRuleLabel()
        {
            var i            = 11;
            var expected     = "Fizz";
            var ruleProvider = Substitute.For <IRuleProvider>();
            var fizzRules    = new List <IRule> {
                Substitute.For <IRule>(), Substitute.For <IRule>()
            };

            fizzRules.ForEach(rule => rule.Label.Returns(expected));

            ruleProvider.Match(i).Returns(fizzRules);

            var formatter = new FizzBuzzFormatter(ruleProvider);

            var output = formatter.Compute(i);

            Assert.Equal(expected, output);
        }
Esempio n. 4
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        public void Compute_MatchMultipleRuleWithDifferentLabel_ShouldReturnAggregateRuleLabel()
        {
            var i         = 11;
            var expected1 = "Fizz";
            var expected2 = "Buzz";
            var expected  = expected1 + expected2;

            var ruleProvider = Substitute.For <IRuleProvider>();

            var fizzRule1 = Substitute.For <IRule>();

            fizzRule1.Label.Returns(expected1);
            var fizzRule2 = Substitute.For <IRule>();

            fizzRule2.Label.Returns(expected2);

            ruleProvider.Match(i).Returns(new[] { fizzRule1, fizzRule2 });

            var formatter = new FizzBuzzFormatter(ruleProvider);

            var output = formatter.Compute(i);

            Assert.Equal(expected, output);
        }