Workflow unit tests fixed to run with CPU-only ISCE3 (#843)

* correctly set rubbersheet at CUDA only in CMake
* added CPU only check for geocode_insar test

Author: Liang Yu

tests/python/packages/CMakeLists.txt

@@ -7,15 +7,14 @@ nisar/workflows/focus.py
 nisar/workflows/stage_dem.py
 nisar/workflows/gcov.py
 nisar/workflows/geo2rdr.py
+nisar/workflows/geocode_insar.py
 nisar/workflows/gslc.py
 nisar/workflows/gpu_check.py
-nisar/workflows/geocode_insar.py
 nisar/workflows/insar.py
 nisar/workflows/process_args.py
 nisar/workflows/point_target_info.py
 nisar/workflows/rdr2geo.py
 nisar/workflows/resample_slc.py
-nisar/workflows/rubbersheet.py
 nisar/workflows/unwrap.py
 nisar/workflows/antenna_parser.py
 )
@@ -45,17 +44,19 @@ set_tests_properties(test.python.pkg.nisar.workflows.geo2rdr PROPERTIES
              DEPENDS test.python.pkg.nisar.workflows.rdr2geo)
 set_tests_properties(test.python.pkg.nisar.workflows.resample_slc PROPERTIES
              DEPENDS test.python.pkg.nisar.workflows.geo2rdr)
-if(WITH_CUDA)
-    set_tests_properties(test.python.pkg.nisar.workflows.dense_offsets PROPERTIES
-                 DEPENDS test.python.pkg.nisar.workflows.cuda_insar)
-    set_tests_properties(test.python.pkg.nisar.workflows.rubbersheet PROPERTIES
-                 DEPENDS test.python.pkg.nisar.workflows.cuda_insar)
-endif()
 set_tests_properties(test.python.pkg.nisar.workflows.crossmul PROPERTIES
              DEPENDS test.python.pkg.nisar.workflows.resample_slc)
 # using rdr2geo outputs as RUNW rasters to confirm geocode run
 # using RUNW HDF5 needed as a verifiable dummy RUNW input
 set_tests_properties(test.python.pkg.nisar.workflows.geocode_insar PROPERTIES
              DEPENDS "test.python.pkg.nisar.workflows.rdr2geo;test.python.pkg.nisar.workflows.unwrap")
+
 set_tests_properties(test.python.pkg.nisar.workflows.insar PROPERTIES
              DEPENDS test.python.pkg.nisar.workflows.geocode_insar)
+
+if(WITH_CUDA)
+    set_tests_properties(test.python.pkg.nisar.workflows.dense_offsets PROPERTIES
+                 DEPENDS test.python.pkg.nisar.workflows.cuda_insar)
+    set_tests_properties(test.python.pkg.nisar.workflows.rubbersheet PROPERTIES
+                 DEPENDS test.python.pkg.nisar.workflows.cuda_insar)
+endif()

tests/python/packages/nisar/workflows/geocode_insar.py

@@ -5,6 +5,7 @@
 import h5py
 import numpy as np
 
+import isce3
 from nisar.workflows import geocode_insar, h5_prep
 from nisar.workflows.geocode_insar_runconfig import GeocodeInsarRunConfig
 
@@ -16,6 +17,10 @@ def test_geocode_run():
     '''
     test_yaml_path = os.path.join(iscetest.data, 'insar_test.yaml')
     for pu in ['cpu', 'gpu']:
+        # Skip GPU geocode insar if cuda not included
+        if pu == 'gpu' and not hasattr(isce3, 'cuda'):
+            continue
+
         with open(test_yaml_path) as fh_test_yaml:
             test_yaml = fh_test_yaml.read().replace('@ISCETEST@', iscetest.data). \
                 replace('@TEST_OUTPUT@', f'{pu}_gunw.h5'). \
@@ -73,6 +78,10 @@ def test_geocode_validate():
     # prepare the check gunw hdf5
     scratch_path = '.'
     for pu in ['cpu', 'gpu']:
+        # Skip GPU geocode insar if cuda not included
+        if pu == 'gpu' and not hasattr(isce3, 'cuda'):
+            continue
+
         path_gunw = os.path.join(scratch_path, f'{pu}_gunw.h5')
         product_path = 'science/LSAR/GUNW/grids/frequencyA/interferogram/HH'
         with h5py.File(path_gunw, 'r', libver='latest', swmr=True) as h: