Refactor shutdown function test to be more stable

This test has been flaky on Windows because of parallel subjobs all
trying to copy the same file. This refactors the test config to be
simpler and not rely on a copy. The test asserts on both the project
directory file list and file contents at the end of the test, so the
copy is not really necessary.

test/functional/job_configs.py

@@ -96,13 +96,12 @@ def __init__(self, config, expected_to_fail, expected_num_subjobs, expected_num_
     setup_build:
         - echo "Doing build setup."
         - sleep 1
-        - echo "setup." > $PROJECT_DIR/build_setup.txt
+        - echo "setup." >> $PROJECT_DIR/build_setup.txt
 
     commands:
         - echo "Doing subjob $SUBJOB_NUMBER."
         - sleep 1
         - MY_SUBJOB_FILE=$PROJECT_DIR/subjob_file_${SUBJOB_NUMBER}.txt
-        - cp build_setup.txt $MY_SUBJOB_FILE
         - echo "subjob $SUBJOB_NUMBER." >> $MY_SUBJOB_FILE
 
     atomizers:
@@ -111,8 +110,7 @@ def __init__(self, config, expected_to_fail, expected_num_subjobs, expected_num_
     teardown_build:
         - echo "Doing build teardown."
         - sleep 1
-        - ALL_SUBJOB_FILES=$(ls $PROJECT_DIR/subjob_file_*.txt || mktemp -t clusterrunnerXXXX)
-        - echo "teardown." | tee -a $ALL_SUBJOB_FILES
+        - echo "teardown." >> $PROJECT_DIR/build_teardown.txt
 
 """,
         'nt': """
@@ -123,13 +121,12 @@ def __init__(self, config, expected_to_fail, expected_num_subjobs, expected_num_
     setup_build:
         - echo Doing build setup.
         - ping 127.0.0.1 -n 2 >nul
-        - echo setup.> !PROJECT_DIR!\\build_setup.txt
+        - echo setup.>> !PROJECT_DIR!\\build_setup.txt
 
     commands:
         - echo Doing subjob !SUBJOB_NUMBER!.
         - ping 127.0.0.1 -n 2 >nul
         - set MY_SUBJOB_FILE=!PROJECT_DIR!\\subjob_file_!SUBJOB_NUMBER!.txt
-        - COPY build_setup.txt !MY_SUBJOB_FILE! >nul
         - echo subjob !SUBJOB_NUMBER!.>> !MY_SUBJOB_FILE!
 
     atomizers:
@@ -138,17 +135,18 @@ def __init__(self, config, expected_to_fail, expected_num_subjobs, expected_num_
     teardown_build:
         - echo Doing build teardown.
         - ping 127.0.0.1 -n 2 >nul
-        - FOR /l %n in (1,1,3) DO @echo teardown.>> !PROJECT_DIR!\\subjob_file_%n.txt
+        - echo teardown.>> !PROJECT_DIR!\\teardown.txt
 """,
     },
     expected_to_fail=False,
     expected_num_subjobs=3,
     expected_num_atoms=3,
     expected_project_dir_contents=[
         File('build_setup.txt', contents='setup.\n'),
-        File('subjob_file_1.txt', contents='setup.\nsubjob 1.\nteardown.\n'),
-        File('subjob_file_2.txt', contents='setup.\nsubjob 2.\nteardown.\n'),
-        File('subjob_file_3.txt', contents='setup.\nsubjob 3.\nteardown.\n'),
+        File('subjob_file_1.txt', contents='subjob 1.\n'),
+        File('subjob_file_2.txt', contents='subjob 2.\n'),
+        File('subjob_file_3.txt', contents='subjob 3.\n'),
+        File('build_teardown.txt', contents='teardown.\n'),
     ],
 )