Add unit tests for ShiftedMetricInterp
#3262
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Because this method should be identical to
ShiftedMetric, we can just parameterise the existing unit tests over the two types (although theFieldPerpoverloads are not implemented so we have to skip those). This is in support of the work to parallelise in Z, by getting more tests on bits that that touches.One important thing to note is that
ZHermiteSpline(the z-only interpolation) explicitly doesn't do anything in any of the guards. This means thatf.yup(mesh->yend + 1)does not get filled in. There's a comment the guards should be filled in by the boundary conditions, but I'm not actually sure that's true for the parallel slices.In the second commit, I end up just masking the guards out basically, just to make the test pass.
If I instead comment out the region masking in
ZInterpolation, and just useRGN_NOYinstead, all the tests seem to pass, including the integrated tests that use MAST grids.@dschwoerer @johnomotani Thoughts? Am I missing something why we can't just use
RGN_NOYfor the Z interpolation here?