ConstraintFixture is a variation of CalculateFixture that has an implied expected value of true (or false).

For example, the following ConstraintFixture table just has given columns and is checking the constraint that the a value is less than the b value:

fitlibrary.specify.SucceedConstraint
a	b
1	2
2	5

The two rows are colored green because the constraint is satisfied. For each value row, the method aB() is called in the class SucceedConstraint, as follows:

---

public class SucceedConstraint extends ConstraintFixture {
	public boolean aB(int a, int b) {
		return a < b;
	}
}

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If the method returns true the row passes, otherwise it is colored red.

We can also have a fixture that expects the result to be false, such that a is not less than b:

fitlibrary.specify.FailConstraint
b	a
1	2
2	5

The fixture class is as follow:

---

public class FailConstraint extends ConstraintFixture {
	public FailConstraint() {
		super(false);
	}
	public boolean bA(int b, int a) {
		return a < b;
	}
}

---

Notice how it passes the expected value of false to the superclass.

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• Copyright (c) 2004, 2005 Rick Mugridge, Rimu Research.
• Released under the terms of the GNU General Public License version 2 or later.