diff --git a/tests/cunit/test_darray.c b/tests/cunit/test_darray.c
index ec47a6b8717..5ed1f578763 100644
--- a/tests/cunit/test_darray.c
+++ b/tests/cunit/test_darray.c
@@ -83,7 +83,7 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
     int type_size; /* size of a variable of type pio_type */
     int other_type; /* another variable of the same size but different type */
     PIO_Offset arraylen = 4;
-    void *fillvalue;
+    void *fillvalue, *ofillvalue;
     void *test_data;
     void *test_data_in;
     int fillvalue_int = NC_FILL_INT;
@@ -119,7 +119,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 /* Create the filename. */
                 sprintf(filename, "data_%s_iotype_%d_pio_type_%d_test_multi_%d_provide_fill_%d.nc", TEST_NAME,
                         flavor[fmt], pio_type, test_multi, provide_fill);
-		if(my_rank==0) printf("Test file %s\n", filename);
                 /* Select the fill value and data. */
                 switch (pio_type)
                 {
@@ -146,7 +145,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 if ((ret = PIOc_createfile(iosysid, &ncid, &flavor[fmt], filename, PIO_CLOBBER)))
                     ERR(ret);
 
-		if(my_rank==0) printf("Test file %s created\n", filename);
                 /* Define netCDF dimensions and variable. */
                 for (int d = 0; d < NDIM; d++)
                     if ((ret = PIOc_def_dim(ncid, dim_name[d], (PIO_Offset)dim_len[d], &dimids[d])))
@@ -165,14 +163,23 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
 //		    other_type = pio_type == PIO_INT64 ? PIO_DOUBLE : PIO_INT64;
 		else
 		    other_type = 0; /* skip the test */
-		printf("pio_type %d other_type %d\n",pio_type, other_type);
+                switch (other_type)
+                {
+                case PIO_INT:
+                    ofillvalue = provide_fill ? &fillvalue_int : NULL;
+                    break;
+                case PIO_FLOAT:
+                    ofillvalue = provide_fill ? &fillvalue_float : NULL;
+                    break;
+                default:
+		    break;
+                }
                 if (other_type && (ret = PIOc_def_var(ncid, VAR_NAME2, other_type, NDIM, dimids, &varid2)))
                     ERR(ret);
 
                 /* End define mode. */
                 if ((ret = PIOc_enddef(ncid)))
                     ERR(ret);
-		if(my_rank==0) printf("Test file %s defined\n", filename);
 
                 /* Set the value of the record dimension. */
                 if ((ret = PIOc_setframe(ncid, varid, 0)))
@@ -184,7 +191,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 int flushtodisk = test_multi - 1;
                 if (!test_multi)
                 {
-		    if(my_rank==0) printf("expected fails\n");
                     /* These should not work. */
                     if (PIOc_write_darray(ncid + TEST_VAL_42, varid, ioid, arraylen, test_data, fillvalue) != PIO_EBADID)
                         ERR(ERR_WRONG);
@@ -195,17 +201,15 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                     if (PIOc_write_darray(ncid, TEST_VAL_42, ioid, arraylen, test_data, fillvalue) != PIO_ENOTVAR)
                         ERR(ERR_WRONG);
 
-		    if(my_rank==0) printf("expected pass\n");
-
 		    /* This should work - library type conversion */
-		    if (other_type && (ret = PIOc_write_darray(ncid, varid2, ioid, arraylen, test_data, fillvalue)))
+		    if (other_type && (ret = PIOc_write_darray(ncid, varid2, ioid, arraylen, test_data, ofillvalue))){
+			printf("other_type %d ret %d fillvalue %x\n",other_type, ret, fillvalue);
                         ERR(ret);
-
+		    }
                     /* Write the data. */
                     if ((ret = PIOc_write_darray(ncid, varid, ioid, arraylen, test_data, fillvalue)))
                         ERR(ret);
 
-		    if(my_rank==0) printf("data write complete\n");
                 }
                 else
                 {
@@ -246,7 +250,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 if ((ret = PIOc_closefile(ncid)))
                     ERR(ret);
 
-		printf("file closed\n");
 
                 /* Reopen the file. */
                 if ((ret = PIOc_openfile(iosysid, &ncid2, &flavor[fmt], filename, PIO_NOWRITE)))
@@ -259,7 +262,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
 		if (dimlen != 1)
 		    ERR(ERR_WRONG);
 
-		printf("file reopened\n");
                 /* These should not work. */
                 if (PIOc_read_darray(ncid2 + TEST_VAL_42, varid, ioid, arraylen,
                                      test_data_in) != PIO_EBADID)
@@ -272,11 +274,9 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 if ((ret = PIOc_setframe(ncid2, varid, 0)))
                     ERR(ret);
 
-		printf("read darray\n");
                 /* Read the data. */
                 if ((ret = PIOc_read_darray(ncid2, varid, ioid, arraylen, test_data_in)))
                     ERR(ret);
-		if(my_rank==0) printf("read darray complete\n");
 
                 /* Check the results. */
                 for (int f = 0; f < arraylen; f++)
@@ -299,8 +299,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                         ERR(ERR_WRONG);
                     }
                 }
-		if(my_rank==0) printf("data read\n");
-
 
                 /* Try to write, but it won't work, because we opened file read-only. */
                 if (!test_multi)
@@ -317,7 +315,6 @@ int test_darray(int iosysid, int ioid, int num_flavors, int *flavor, int my_rank
                 /* Close the netCDF file. */
                 if ((ret = PIOc_closefile(ncid2)))
                     ERR(ret);
-		if(my_rank==0) printf("file closed\n");
             } /* next fillvalue test case */
         } /* next test multi */
     } /* next iotype */