@Before
public void setUp() {
this.a = new SymbolicInteger("a");
this.b = new SymbolicInteger("b");
this.x = new SymbolicReal("x");
this.y = new SymbolicReal("y");
this.space = RealVectorSpace.forDimensions(a, b, x, y);
}
@Test
public void evaluatorShouldUseAssignmentForRealVariables() {
RealVector p = space.makeVector().set(x, 2.89).build();
assertThat(evaluate(x, p).doubleValue(), equalTo(2.89));
}
@Test
public void evaluatorShouldUseAssignmentForIntegerVariables() {
RealVector p = space.makeVector().set(a, 42).build();
assertThat(evaluate(a, p).intValue(), equalTo(42));
}
@Test
public void evaluatorShouldUseRealConstants() {
RealVector p = space.makeVector().build();
assertThat(evaluate(new RealConstant(3.14), p).doubleValue(), equalTo(3.14));
}
@Test
public void evaluatorShouldUseIntegerConstants() {
RealVector p = space.makeVector().build();
assertThat(evaluate(new IntegerConstant(23), p).intValue(), equalTo(23));
}
private RealVector realPoint(double xVal, double yVal) {
return space.makeVector().set(x, xVal).set(y, yVal).build();
}
private RealVector intPoint(int aVal, int bVal) {
return space.makeVector().set(a, aVal).set(b, bVal).build();
}