test: rewrite test_media_root.sh to use /tmp instead of hardcoded paths

The old test only ran on Andy's workstation (hardcoded /mnt/918375c2
mount point and /home/andy paths). The new approach:

- Compares the device ID of /tmp with $HOME using stat
- Skips if they are on the same device (test condition not met)
- Otherwise uses /tmp as the simulated removable media root
- Creates a temporary rmw config and waste folder under /tmp
- Verifies the trashinfo Path is relative per FreeDesktop Trash spec
- Cleans up after itself

This makes the test portable and runnable on any system where /tmp is
on a separate device (e.g. tmpfs on Linux CI runners).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: andy5995

test/meson.build

@@ -13,6 +13,7 @@ test_cases = ['strings_rmw', 'utils', 'restore']
 
 scripts = [
     'test_basic.sh',
+    'test_media_root.sh',
     'test_purging.sh',
     'test_restore.sh',
 ]
@@ -52,15 +53,3 @@ foreach s : scripts
     )
 endforeach
 
-# test_media_root.sh intentionally unsets RMW_FAKE_HOME and operates under the
-# real HOME (it skips automatically on machines without the expected mount point).
-test(
-    'test_media_root.sh',
-    files('test_media_root.sh'),
-    env: [
-        'MESON_SOURCE_ROOT=' + meson.project_source_root(),
-        'RMW_FAKE_HOME=' + RMW_FAKE_HOME,
-        'MESON_BUILD_ROOT=' + meson.project_build_root(),
-    ],
-    depends: main_bin,
-)

test/test_media_root.sh

@@ -3,13 +3,13 @@
 # Path should be relative
 #
 #https://specifications.freedesktop.org/trash-spec/1.0/#id-1.6.10.1 The key
-#“Path” contains the original location of the file/directory, as either an
-#absolute pathname (starting with the slash character “/”) or a relative
+#"Path" contains the original location of the file/directory, as either an
+#absolute pathname (starting with the slash character "/") or a relative
 #pathname (starting with any other character). A relative pathname is to be
 #from the directory in which the trash directory resides (for example, from
-#$XDG_DATA_HOME for the “home trash” directory); it MUST not include a “..”
-#directory, and for files not “under” that directory, absolute pathnames must
-#be used. The system SHOULD support absolute pathnames only in the “home trash”
+#$XDG_DATA_HOME for the "home trash" directory); it MUST not include a ".."
+#directory, and for files not "under" that directory, absolute pathnames must
+#be used. The system SHOULD support absolute pathnames only in the "home trash"
 #directory, not in the directories under $topdir.
 
 set -ve
@@ -20,45 +20,66 @@ else
   . "${MESON_SOURCE_ROOT}/test/COMMON"
 fi
 
-# This test will only work on Andy's workstation.
-# The media root, /home/andy/src is on a different partition than /home/andy
-# It's mounted with 'bind' and therefore has a different device id
-test ! -d /mnt/918375c2 && exit 0;
+# This test needs a file and waste folder on the same device, but a different
+# device than $HOME. Check whether /tmp qualifies.
+tmp_dev=$(stat -c %d /tmp 2>/dev/null || stat -f %d /tmp 2>/dev/null || echo "")
+home_dev=$(stat -c %d "$RMW_FAKE_HOME" 2>/dev/null || stat -f %d "$RMW_FAKE_HOME" 2>/dev/null || echo "")
 
-# This test use Andy's regular config, outside of the test sandbox, so don't
-# run it if the epoch test setup is being used. Otherwise all the waste dirs
-# will be purged.
-test -n "$RMW_TEST_EPOCHALYPSE" && exit 0;
-echo "hello"
+if [ -z "$tmp_dev" ] || [ "$tmp_dev" = "$home_dev" ]; then
+  echo "/tmp is on the same device as home, or stat is unavailable; skipping"
+  exit 0
+fi
 
+# /tmp is on a different device — use it as the simulated media root.
+TRASH_DIR="/tmp/.Trash-$(id -u)"
+TEST_DIR="/tmp/rmw-media-root-test"
 test_file="media_root_test"
-PREV_RMW_FAKE_HOME=${RMW_FAKE_HOME}
-# needs to be unset so rmw will use $HOME instead
-unset RMW_FAKE_HOME
-mkdir -p "$PREV_RMW_FAKE_HOME"
-test_file_path=${PREV_RMW_FAKE_HOME}/$test_file
-if test -f "$test_file_path"; then
-  rm "$test_file_path"
-fi
-if test -f /home/andy/src/rmw-project/.Trash-1000/files/$test_file; then
-  rm /home/andy/src/rmw-project/.Trash-1000/files/$test_file
-fi
-if test -f /home/andy/src/rmw-project/.Trash-1000/info/$test_file.trashinfo; then
-  rm /home/andy/src/rmw-project/.Trash-1000/info/$test_file.trashinfo
-fi
+test_file_path="$TEST_DIR/$test_file"
+
+# Clean up any leftovers from a previous run
+rm -rf "$TRASH_DIR" "$TEST_DIR"
+
+# Create test config pointing the waste folder to /tmp
+mkdir -p "$RMW_FAKE_HOME"
+TEST_CONFIG="$RMW_FAKE_HOME/media-root.testrc"
+printf 'WASTE = /tmp/.Trash-%s, removable\nexpire_age = 90\n' "$(id -u)" > "$TEST_CONFIG"
+
+# Create waste dir manually (required because it is marked removable)
+mkdir -p "$TRASH_DIR/files" "$TRASH_DIR/info"
+mkdir -p "$TEST_DIR"
+
 touch "$test_file_path"
-"$BIN_DIR"/rmw -c /home/andy/.config/rmwrc "$test_file_path"
+"$BIN_DIR"/rmw -c "$TEST_CONFIG" "$test_file_path"
 
-output=$(grep Path /home/andy/src/rmw-project/.Trash-1000/info/$test_file.trashinfo)
+test -f "$TRASH_DIR/info/$test_file.trashinfo"
+test -f "$TRASH_DIR/files/$test_file"
+test ! -f "$test_file_path"
 
-# There should be no leading '/' in the filename.
-path_expected=$(echo "${MESON_BUILD_ROOT}" | sed -e "s/\/home\/andy\/src\/rmw-project\///g")
-echo "$path_expected"
-test "$output" = "Path=${path_expected}/test/rmw-tests-home/test_media_root.sh_dir/media_root_test"
+# The Path must be relative (no leading '/') since the waste folder is at
+# the topdir of /tmp's partition.
+output=$(grep '^Path=' "$TRASH_DIR/info/$test_file.trashinfo")
+echo "trashinfo: $output"
+case "$output" in
+  Path=/*)
+    echo "FAIL: Path is absolute, expected relative"
+    exit 1
+    ;;
+  Path=*)
+    echo "PASS: Path is relative"
+    ;;
+  *)
+    echo "FAIL: Path line not found"
+    exit 1
+    ;;
+esac
 
-output=$("$BIN_DIR"/rmw -uvv -c /home/andy/.config/rmwrc | grep media_root_test)
+# Restore and verify
+"$BIN_DIR"/rmw -uvv -c "$TEST_CONFIG"
+test -f "$test_file_path"
+test ! -f "$TRASH_DIR/info/$test_file.trashinfo"
 
-test "$output" = "+'/home/andy/src/rmw-project/.Trash-1000/files/media_root_test' -> '${MESON_BUILD_ROOT}/test/rmw-tests-home/test_media_root.sh_dir/media_root_test'
--/home/andy/src/rmw-project/.Trash-1000/info/media_root_test.trashinfo"
+# Cleanup
+rm -f "$TEST_CONFIG"
+rm -rf "$TRASH_DIR" "$TEST_DIR"
 
 exit 0