0032243: Tests - unexpected file artifact s.stl at the root of repository

Several test cases have been corrected to avoid creation
of temporary files s.stl, comp_nonmanifold.step, bug31301_1.stp at unexpected location.

tests/bugs/step/bug31301

@@ -1,5 +1,7 @@
 testreadstep [locate_data_file bug31301.stp] s
-testwritestep bug31301_1.stp s
-testreadstep bug31301_1.stp s1
+set aTmpFile "$imagedir/${casename}.stp"
+testwritestep "$aTmpFile" s
+testreadstep  "$aTmpFile" s1
+file delete   "$aTmpFile"
 checkshape s1 f
-checkmaxtol s1 -ref 0.0078
+checkmaxtol s1 -ref 0.0078

tests/bugs/step/bug31301_2

@@ -1,5 +1,7 @@
 restore  [locate_data_file bug31301_2.brep] s
-testwritestep bug31301_1.stp s
-testreadstep bug31301_1.stp s1
+set aTmpFile "$imagedir/${casename}.stp"
+testwritestep "$aTmpFile" s
+testreadstep  "$aTmpFile" s1
+file delete   "$aTmpFile"
 checkshape s1 f
-checkmaxtol s1 -ref 0.000247
+checkmaxtol s1 -ref 0.000247

tests/bugs/step/bug31485

@@ -7,9 +7,10 @@ brestore [locate_data_file bug31485.brep] a
 
 param write.step.nonmanifold 1
 
-testwritestep comp_nonmanifold.step a
-testreadstep comp_nonmanifold.step result
+set aTmpFile "$imagedir/${casename}.step"
+testwritestep "$aTmpFile" a
+testreadstep  "$aTmpFile" result
+file delete   "$aTmpFile"
 
 checkshape result
-
 checknbshapes result -face 3

tests/bugs/step/bug31617

@@ -7,9 +7,10 @@ brestore [locate_data_file bug31617.brep] a
 
 param write.step.nonmanifold 1
 
-testwritestep comp_nonmanifold.step a
-testreadstep comp_nonmanifold.step result
+set aTmpFile "$imagedir/${casename}.step"
+testwritestep "$aTmpFile" a
+testreadstep  "$aTmpFile" result
+file delete   "$aTmpFile"
 
 checkshape result
-
 checknbshapes result -ref [lrange [nbshapes a] 11 16]

tests/de_mesh/shape_write_stl/B1

@@ -1,7 +1,9 @@
 sphere s 10
 tessellate result s 100 100
 XProgress +t
-set out [writestl result s.stl]
+set aTmpFile "$imagedir/${casename}.stl"
+set out [writestl result "$aTmpFile"]
+file delete "$aTmpFile"
 
 set expected {
   {Progress: 0%}