public void FirstElement()
{
var diff = new StringDiff("qabc", "xabc");
var result = diff.Compute();
result.Print();
}
public void NoChanges()
{
var diff = new StringDiff("foo", "foo");
var result = diff.Compute();
Assert.AreEqual(3, result.Changes.Count());
Assert.AreEqual(0, result.Additions);
Assert.AreEqual(0, result.Deletions);
}
public void DiffCommonPrefix()
{
var diff = new StringDiff("abcdfghjqz", "abcdefgijkrxyz");
var result = diff.Compute();
result.Print();
Assert.AreEqual(6, result.Additions);
Assert.AreEqual(2, result.Deletions);
Assert.AreEqual(16, result.Changes.Count());
}
public void DiffBanana()
{
var diff = new StringDiff("banana", "atana");
// var diff = new StringDiff("atana", "banana");
var result = diff.Compute();
result.Print();
Assert.AreEqual(1, result.Additions);
Assert.AreEqual(2, result.Deletions);
Assert.AreEqual(7, result.Changes.Count());
}
/// <summary>
/// Computes a <see cref="DiscrepancyTestResult"/> for a specified property
/// </summary>
/// <typeparam name="T">The type of the property being tested</typeparam>
/// <param name="x">Left operand</param>
/// <param name="y">Right operand</param>
/// <param name="discrepancy">Discrepancy being tested</param>
/// <param name="getter">A delegate that returns the value of the property from a <see cref="PatientProfile"/></param>
/// <param name="tester">A delegate that tests for equality of the property - need not be null-safe</param>
/// <param name="toString">A delegate that converts the property to a string</param>
/// <returns></returns>
private static DiscrepancyTestResult GetResult <T>(PatientProfile x, PatientProfile y, PatientProfileDiscrepancy discrepancy, PropertyGetter <T> getter, TestEqual <T> tester, ToStringDelegate <T> toString)
{
var vx = getter(x);
var vy = getter(y);
if (Equals(vx, default(T)) && Equals(vy, default(T)))
{
return(new DiscrepancyTestResult(discrepancy, false, StringDiff.Compute("", "", true)));
}
if (Equals(vx, default(T)))
{
return(new DiscrepancyTestResult(discrepancy, true, StringDiff.Compute("", toString(vy), true)));
}
if (Equals(vy, default(T)))
{
return(new DiscrepancyTestResult(discrepancy, true, StringDiff.Compute(toString(vx), "", true)));
}
return(new DiscrepancyTestResult(discrepancy, !tester(vx, vy), StringDiff.Compute(toString(vx), toString(vy), true)));
}
