CI: skip jep tests when running the javaless job

And name the javaless job differently, to disambiguate it.

Author: ctrueden

.github/workflows/build.yml

@@ -29,7 +29,8 @@ jobs:
         java-version: ['11']
         include:
           # one test without java to test cjdk fallback
-          - os: ubuntu-latest
+          - name: test ${{matrix.os}} - ${{matrix.python-version}} no-java
+            os: ubuntu-latest
             python-version: '3.12'
             java-version: ''
 

bin/test.sh

@@ -77,6 +77,11 @@ if [ "$(uname -s)" = "Darwin" ]
 then
   echo "Skipping jep tests on macOS due to flakiness"
   jepCode=0
+elif ! echo "print('Jep is working; proceeding with jep test')" | jep;
+then
+  # Note: This case occurs when running the no-java CI job.
+  echo "Jep installation is nonfunctional; skipping jep tests"
+  jepCode=0
 else
   echo "# AUTOGENERATED test file for jep; safe to delete.
 import logging, sys, pytest, scyjava