Пример #1
0
        public void FromFraction_SetsValueAndFraction()
        {
            DecimalPercentage sixtyPercent = DecimalPercentage.FromFraction(.6m);

            Assert.That(sixtyPercent.Value, Is.EqualTo(60m));
            Assert.That(sixtyPercent.Fraction, Is.EqualTo(.6m));
        }
Пример #2
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        public void Ctor_SetsValueAndFraction()
        {
            var sixtyPercent = new DecimalPercentage(60m);

            Assert.That(sixtyPercent.Value, Is.EqualTo(60m));
            Assert.That(sixtyPercent.Fraction, Is.EqualTo(.6m));
        }
Пример #3
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        public void Apply_AppliesThePercentageToTheAmountGiven()
        {
            var fiftyPercent = new DecimalPercentage(50);

            Assert.That(fiftyPercent.Apply(100L), Is.EqualTo(50m));
            Assert.That(fiftyPercent.Apply(100m), Is.EqualTo(50m));
        }
Пример #4
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        public void FromDifference_TotalSmaller_NegativePercentage()
        {
            DecimalPercentage twiceAsSmall = DecimalPercentage.FromDifference(10L, 20L);

            Assert.That(twiceAsSmall.Value, Is.EqualTo(-100m));

            twiceAsSmall = DecimalPercentage.FromDifference(10m, 20m);
            Assert.That(twiceAsSmall.Value, Is.EqualTo(-100d));
        }
Пример #5
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        public void FromDifference_TotalBigger_PositivePercentage()
        {
            DecimalPercentage fiftyPercentBigger = DecimalPercentage.FromDifference(20L, 10L);

            Assert.That(fiftyPercentBigger.Value, Is.EqualTo(50m));

            fiftyPercentBigger = DecimalPercentage.FromDifference(20m, 10m);
            Assert.That(fiftyPercentBigger.Value, Is.EqualTo(50d));
        }
Пример #6
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        public void FromDifference_ZeroTotal_HundredPercent()
        {
            DecimalPercentage hundredPercentMore = DecimalPercentage.FromDifference(15, 0);

            Assert.That(hundredPercentMore.Value, Is.EqualTo(100m));
            Assert.That(hundredPercentMore.Fraction, Is.EqualTo(1m));

            hundredPercentMore = DecimalPercentage.FromDifference(long.MaxValue, 0);
            Assert.That(hundredPercentMore.Value, Is.EqualTo(100d));
            Assert.That(hundredPercentMore.Fraction, Is.EqualTo(1d));
        }
Пример #7
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        public void ExtensionMethods_LikeConstructionCounterParts()
        {
            DecimalPercentage sixtyPercent = 60m.Percent();

            Assert.That(sixtyPercent.Value, Is.EqualTo(60m));
            Assert.That(sixtyPercent.Fraction, Is.EqualTo(.6m));

            DecimalPercentage tenPercent = 10m.AsPercentOf(100m);

            Assert.That(tenPercent.Value, Is.EqualTo(10m));
            Assert.That(tenPercent.Fraction, Is.EqualTo(0.1m));
        }
Пример #8
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        public void FromAmounts_CalculatesPercentage()
        {
            DecimalPercentage eightyPercent = DecimalPercentage.FromAmounts(60L, 75L);

            Assert.That(eightyPercent.Value, Is.EqualTo(80m));
            Assert.That(eightyPercent.Fraction, Is.EqualTo(0.8m));

            DecimalPercentage tenPercent = DecimalPercentage.FromAmounts(10m, 100m);

            Assert.That(tenPercent.Value, Is.EqualTo(10m));
            Assert.That(tenPercent.Fraction, Is.EqualTo(0.1m));

            DecimalPercentage thousandPercent = DecimalPercentage.FromAmounts(100m, 10m);

            Assert.That(thousandPercent.Value, Is.EqualTo(1000m));
            Assert.That(thousandPercent.Fraction, Is.EqualTo(10m));
        }
Пример #9
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 public static DecimalPercentage AsPercentOf(this decimal given, decimal total)
 {
     return(DecimalPercentage.FromAmounts(given, total));
 }
Пример #10
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 public void FromAmount_ZeroTotal_Exception()
 {
     Assert.That(() => DecimalPercentage.FromAmounts(10, 0), Throws.ArgumentException);
 }