Fix callback_default integration test for non-root users

This test compares the test output to previously collected output. However, this
previously assumed that the tests are run as root, even though needs/root in
aliases is not set.

So instead parameterize the output, and use sed to replace the value that
diverge when running it as different users.

test/integration/targets/callback_default/callback_default.out.include_role_fails.stderr

@@ -1,6 +1,6 @@
 + ansible-playbook -i inventory test_include_role_fails.yml
 ++ set +x
-ERROR! the role 'does-not-exist' was not found in TEST_PATH/roles:/root/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:TEST_PATH
+ERROR! the role 'does-not-exist' was not found in TEST_PATH/roles:/<<HOMEDIR>>/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:TEST_PATH
 
 The error appears to be in 'TEST_PATH/test_include_role_fails.yml': line 5, column 15, but may
 be elsewhere in the file depending on the exact syntax problem.

test/integration/targets/callback_default/callback_default.out.include_role_fails.stdout

@@ -2,7 +2,7 @@
 PLAY [testhost] ****************************************************************
 
 TASK [include_role : does-not-exist] *******************************************
-fatal: [testhost]: FAILED! => {"changed": false, "reason": "the role 'does-not-exist' was not found in TEST_PATH/roles:/root/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:TEST_PATH\n\nThe error appears to be in 'TEST_PATH/test_include_role_fails.yml': line 5, column 15, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    - include_role:\n        name: does-not-exist\n              ^ here\n"}
+fatal: [testhost]: FAILED! => {"changed": false, "reason": "the role 'does-not-exist' was not found in TEST_PATH/roles:/<<HOMEDIR>>/.ansible/roles:/usr/share/ansible/roles:/etc/ansible/roles:TEST_PATH\n\nThe error appears to be in 'TEST_PATH/test_include_role_fails.yml': line 5, column 15, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    - include_role:\n        name: does-not-exist\n              ^ here\n"}
 
 PLAY RECAP *********************************************************************
 testhost                   : ok=0    changed=0    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   

test/integration/targets/callback_default/callback_default.out.result_format_yaml_lossy_verbose.stdout

@@ -160,15 +160,15 @@ changed: [testhost] =>
     changed: true
     checksum: 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33
     dest: .../test_diff.txt
-    gid: 0
-    group: root
+    gid: <<GID>>
+    group: <<GROUP>>
     md5sum: acbd18db4cc2f85cedef654fccc4a4d8
     mode: '0644'
-    owner: root
+    owner: <<OWNER>>
     size: 3
     src: .../.source.txt
     state: file
-    uid: 0
+    uid: <<UID>>
 
 TASK [replace] *****************************************************************
 --- before: .../test_diff.txt

test/integration/targets/callback_default/callback_default.out.result_format_yaml_verbose.stdout

@@ -167,15 +167,15 @@ changed: [testhost] =>
     changed: true
     checksum: 0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33
     dest: .../test_diff.txt
-    gid: 0
-    group: root
+    gid: <<GID>>
+    group: <<GROUP>>
     md5sum: acbd18db4cc2f85cedef654fccc4a4d8
     mode: '0644'
-    owner: root
+    owner: <<OWNER>>
     size: 3
     src: .../.source.txt
     state: file
-    uid: 0
+    uid: <<UID>>
 
 TASK [replace] *****************************************************************
 --- before: .../test_diff.txt

test/integration/targets/callback_default/runme.sh

@@ -13,6 +13,8 @@
 
 set -eux
 
+umask 0022
+
 run_test() {
 	local testname=$1
 	local playbook=$2
@@ -37,6 +39,15 @@ run_test() {
 	sed -i -e '/secontext:/d' "${OUTFILE}.${testname}.stdout"
 	sed -i -e 's/group: wheel/group: root/g' "${OUTFILE}.${testname}.stdout"
 
+	# normalize gid/group/owner/uid/homedir so tests can run as non-root user
+	ESC_HOME=$(echo "${HOME}" | sed -e 's/\//\\\//g')
+	sed -i -e "s/${ESC_HOME}/\/<<HOMEDIR>>/g" "${OUTFILE}.${testname}.stdout"
+	sed -i -e "s/${ESC_HOME}/\/<<HOMEDIR>>/g" "${OUTFILE}.${testname}.stderr"
+	sed -i -e "s/gid: $(id -g)/gid: <<GID>>/g" "${OUTFILE}.${testname}.stdout"
+	sed -i -e "s/group: $(id -gn)/group: <<GROUP>>/g" "${OUTFILE}.${testname}.stdout"
+	sed -i -e "s/owner: $(id -un)/owner: <<OWNER>>/g" "${OUTFILE}.${testname}.stdout"
+	sed -i -e "s/uid: $(id -u)/uid: <<UID>>/g" "${OUTFILE}.${testname}.stdout"
+
 	diff -u "${ORIGFILE}.${testname}.stdout" "${OUTFILE}.${testname}.stdout" || diff_failure
 	diff -u "${ORIGFILE}.${testname}.stderr" "${OUTFILE}.${testname}.stderr" || diff_failure
 }