Hi,
today I tried to fix a bug (http://jira.codehaus.org/browse/GEOT-1693)
that required fixing DefaultFeatureResults and co. The issue with this
bug is that one cannot unit test DefaultFeatureResults without
creating a ton or related classes... unless mock testing is used.
So I gave a spin at EasyMock 2 and... wow! Look at how simple the
test with the mock object is:
public void testMaxFeatureOptimized() throws Exception {
DefaultQuery q = new DefaultQuery("roads");
q.setMaxFeatures(10);
// mock up the feature source so that it'll return a count of 20
SimpleFeatureType type = DataUtilities.createType("roads",
"_=the_geom:Point,FID:String,NAME:String");
FeatureSource fs = createMock(FeatureSource.class);
expect(fs.getSchema()).andReturn(type).anyTimes();
expect(fs.getCount(q)).andReturn(20);
replay(fs);
DefaultFeatureResults results = new DefaultFeatureResults(fs, q);
assertEquals(10, results.size());
}
Basically I create a mock, set a few expectations on the method
calls and their return values, and I'm in business. Lovely.
Unfortunately this did not last long. I had to make a similar
fix in JDBCFeatureCollection, which needs JDBCFeatureSource,
which in turn is not an interface. And EasyMock + JUnit 3
does not allow to mock interfaces... Junit4 is required to
do so.
I looked around, JMock is there, but imho setting up
the mock objects is quite a bit more convoluted.
JUnit4 is apparently supported by both Eclipse and Maven,
yet I'm a little reluctant upgrading due to the extensive
amount of tests made using JUnit 3... we have no complaints
on it and we have a good expertise grown on it...
Soo... what do people think? Opinions?
Cheers
Andrea
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