public void ToResultExpression_When_UnitHasExponent_Then_ResultShouldBeExpected()
{
var testee = new FlatUnit("s", exponent: 2).GetFlatIdentifierRepresentation();
var result = testee.ToResultingExpression();
result.ToString().Should().Be("s²");
}
public void ToResultExpression_When_SingleUnitRaisedInMinusOne_Then_ResultShouldBeSingleUnit()
{
var testee = new FlatUnit("s", -1).GetFlatIdentifierRepresentation();
var result = testee.ToResultingExpression();
result.ToString().Should().Be("s");
}
public void GetResultingExpression_When_UnitReducedByBaseUnitAndDerivedUnitIsAddedFirst_Then_ResultShouldBeBaseUnitExpression()
{
var flatRepresentation = FlatUnit.CreateFlatRepresentation(new FlatUnit("min", "s"));
var testee = flatRepresentation.GetConsumer();
var result = testee.GetResultingExpression(new UnitExpression(new Unit("s")), true);
result.Should().BeOfType<UnitExpression>().Which.Unit.Notation.Should().Be("min");
}
public void GetResultingExpression_When_UnitIsNotFound_Then_ResultShouldBeNull()
{
var flatRepresentation = FlatUnit.CreateFlatRepresentation(new FlatUnit("s"));
var testee = flatRepresentation.GetConsumer();
var result = testee.GetResultingExpression(new UnitExpression(new Unit("m")), false);
result.Should().BeNull();
}
public void Build_When_MultipleVariablesHavesBeenBeenAdded_Then_ExponentShouldBeAccumulated()
{
var expected = FlatUnit.CreateFlatRepresentation(new FlatVariable("var", 3));
this.testee.Add(new VariableExpression("var"), 2);
this.testee.Add(new VariableExpression("var"), 1);
var result = this.testee.Build();
result.Should().ContainInOrder(expected);
}
public void Build_When_MultipleConstantsHaveBeenBeenAdded_Then_ExponentShouldBeMultipled()
{
var expected = FlatUnit.CreateFlatRepresentation(new FlatConstant(16, 1));
this.testee.Add(new ConstantExpression(2), 2);
this.testee.Add(new ConstantExpression(4), 1);
var result = this.testee.Build();
result.Should().ContainInOrder(expected);
}
public void GetResultingExpression_When_BaseUnitIsAddedFirst_Then_ResultShouldBeNull()
{
var flatRepresentation = FlatUnit.CreateFlatRepresentation(new FlatUnit("s"));
var testee = flatRepresentation.GetConsumer();
var result =
testee.GetResultingExpression(
new UnitExpression(new FactoredUnit(60, "min", new UnitExpression(new Unit("s")))),
false);
result.Should().BeNull();
}
public void GetResultingExpression_When_ExponentIsLargerThanOne_Then_ResultShouldContainMagnitudeExpression(
double exponent)
{
var flatRepresentation = FlatUnit.CreateFlatRepresentation(new FlatUnit("s", exponent: exponent));
var testee = flatRepresentation.GetConsumer();
var result = testee.GetResultingExpression(new UnitExpression(new Unit("s")), false);
var magnitudeAssertion = result.Should().BeOfType<MagnitudeExpression>();
magnitudeAssertion.Which.Rhs.Constant.Should().Be(exponent);
magnitudeAssertion.Which.Lhs.ToString().Should().Be("s");
}
public void ToString_Then_ResultShouldBeExpectedNotation()
{
const string ExpectedNotation = "m¹*h⁻¹*s⁻¹";
var testee = FlatUnit.CreateFlatRepresentation(
new FlatUnit("m"),
new FlatUnit("h", -1),
new FlatUnit("s", -1));
var result = testee.ToString();
result.Should().Be(ExpectedNotation);
}
public void Build_When_ConstantHasBeAdded_Then_ResultShouldContainVariableWithExponent(
double constant,
double exponent)
{
var expected = FlatUnit.CreateFlatRepresentation(new FlatConstant(constant, exponent));
this.testee.Add(new ConstantExpression(constant), exponent);
var result = this.testee.Build();
result.Should().ContainInOrder(expected);
}
public void Build_When_VariableHasBeAdded_Then_ResultShouldContainVariableWithExponent(
string variable,
double exponent)
{
var expected = FlatUnit.CreateFlatRepresentation(new FlatVariable(variable, exponent));
this.testee.Add(new VariableExpression(variable), exponent);
var result = this.testee.Build();
result.Should().ContainInOrder(expected);
}
public void Equals_Then_ResultShouldBeExpected(
string unit,
double unitExponent,
string other,
double otherExponent,
bool expected)
{
var testee = FlatUnit.CreateFlatRepresentation(new FlatUnit(unit, unitExponent));
var rhs = FlatUnit.CreateFlatRepresentation(new FlatUnit(other, otherExponent));
var result = testee.Equals(rhs);
result.Should().Be(expected);
}
public void GetHashcode_Then_ResultShouldBeSameAsOtherResult(
string unit,
double unitExponent,
string other,
double otherExponent,
bool expected)
{
var testee = FlatUnit.CreateFlatRepresentation(new FlatUnit(unit, unitExponent));
var rhs = FlatUnit.CreateFlatRepresentation(new FlatUnit(other, otherExponent));
var result = testee.GetHashCode();
var otherResult = rhs.GetHashCode();
result.Equals(otherResult).Should().Be(expected);
}