paraview: add smoke tests (spack#45759)

var/spack/repos/builtin/packages/paraview/package.py

@@ -6,6 +6,7 @@
 import itertools
 import os
 import sys
+from subprocess import Popen
 
 from spack.package import *
 
@@ -706,3 +707,54 @@ def use_x11():
         cmake_args.append(self.define_from_variant("VTKOSPRAY_ENABLE_DENOISER", "raytracing"))
 
         return cmake_args
+
+    def test_smoke_test(self):
+        """Simple smoke test for ParaView"""
+        spec = self.spec
+
+        pvserver = Executable(spec["paraview"].prefix.bin.pvserver)
+        pvserver("--help")
+
+    def test_pvpython(self):
+        """Test pvpython"""
+        spec = self.spec
+
+        if "~python" in spec:
+            raise SkipTest("Package must be installed with +python")
+
+        pvpython = Executable(spec["paraview"].prefix.bin.pvpython)
+        pvpython("-c", "import paraview")
+
+    def test_mpi_ensemble(self):
+        """Test MPI ParaView Client/Server ensemble"""
+        spec = self.spec
+
+        if "~mpi" in spec or "~python" in spec:
+            raise SkipTest("Package must be installed with +mpi and +python")
+
+        mpirun = spec["mpi"].prefix.bin.mpirun
+        pvserver = spec["paraview"].prefix.bin.pvserver
+        pvpython = Executable(spec["paraview"].prefix.bin.pvpython)
+
+        with working_dir("smoke_test_build", create=True):
+            with Popen(
+                [mpirun, "-np", "3", pvserver, "--mpi", "--force-offscreen-rendering"]
+            ) as servers:
+                pvpython(
+                    "--force-offscreen-rendering",
+                    "-c",
+                    "from paraview.simple import *;"
+                    "Connect('127.0.0.1');"
+                    "sphere = Sphere(ThetaResolution=16, PhiResolution=32);"
+                    "sphere_remote = servermanager.Fetch(sphere);"
+                    "Show(sphere);"
+                    "Render()",
+                )
+                servers.terminate()
+
+    @run_after("install")
+    @on_package_attributes(run_tests=True)
+    def build_test(self):
+        self.test_smoke_test()
+        self.test_pvpython()
+        self.test_mpi_ensemble()