Merge pull request #1928 from jtkrogel/nx_test_hdfreader

Nexus: tests for hdfreader module

nexus/bin/nxs-test

@@ -1732,6 +1732,12 @@ def fileio():
 
 
 
+def hdfreader():
+    nunit_all()
+#end def hdfreader
+
+
+
 
 def nexus_imports():
     import nexus
@@ -3472,6 +3478,7 @@ NexusTest( developer             )
 NexusTest( periodic_table        )
 NexusTest( numerics              )
 NexusTest( fileio                )
+NexusTest( hdfreader             )
 NexusTest( nexus_imports         )
 NexusTest( settings_operation    , 'settings' )
 NexusTest( machines              )

nexus/tests/unit/test_hdfreader.py

@@ -0,0 +1,81 @@
+
+from versions import h5py_available
+import testing
+from testing import value_eq,object_eq
+
+
+def test_import():
+    import hdfreader
+    from hdfreader import HDFreader,read_hdf
+#end def test_import
+
+
+if h5py_available:
+    def test_read():
+        import os
+        import numpy as np
+        import h5py
+        from hdfreader import read_hdf
+
+        ds = 'string value'
+        di = 100
+        df = np.pi
+        das = np.array(tuple('abcdefghijklmnopqrstuvwxyz'))
+        dai = np.arange(20,dtype=np.int64)
+        daf = 0.1*np.arange(20,dtype=np.float64)
+
+        path = testing.setup_unit_test_output_directory('hdfreader','test_read')
+
+        def add_datasets(g):
+            g.create_dataset('sdata',data=das)
+            g.create_dataset('idata',data=dai)
+            g.create_dataset('fdata',data=daf)
+        #end def add_datasets
+
+        def add_attrs(g):
+            g.attrs['sval'] = ds
+            g.attrs['ival'] = di
+            g.attrs['fval'] = df
+        #end def add_attrs
+
+        def add_group(g,label=''):
+            g = g.create_group('group'+str(label))
+            add_attrs(g)
+            add_datasets(g)
+            return g
+        #end def add_group
+
+        testfile = os.path.join(path,'test.h5')
+        f = h5py.File(testfile,'w')
+
+        add_datasets(f)
+        g1  = add_group(f,1)
+        g2  = add_group(f,2)
+        g11 = add_group(g1,1)
+        g12 = add_group(g1,2)
+        g21 = add_group(g2,1)
+        g22 = add_group(g2,2)
+
+        f.close()
+
+        def check_datasets(g):
+            assert(value_eq(g.sdata,das))
+            assert(value_eq(g.idata,dai))
+            assert(value_eq(g.fdata,daf))
+        #end def check_datasets
+
+        def check_groups(g):
+            assert('group1' in g)
+            assert('group2' in g)
+            check_datasets(g.group1)
+            check_datasets(g.group2)
+        #end def check_groups
+
+        h = read_hdf(testfile)
+
+        check_datasets(h)
+        check_groups(h)
+        check_groups(h.group1)
+        check_groups(h.group2)
+    #end def test_read
+#end if