1 files changed, 39 insertions, 0 deletions
diff --git a/scripts/tests/sync-language-bundle.bats b/scripts/tests/sync-language-bundle.bats
index 9fd1108..e641646 100644
--- a/scripts/tests/sync-language-bundle.bats
+++ b/scripts/tests/sync-language-bundle.bats
@@ -44,6 +44,14 @@ matches_canonical() {  # project-relative-path  canonical-abs-path
   diff -q "$PROJ/$1" "$2" >/dev/null 2>&1
 }
 
+# Mirror install-team.sh: copy only the team overlay's own rule files into a
+# synthetic project (no generic rules, hooks, githooks, or settings).
+install_team_overlay() {
+  local team="$1" proj="$2"
+  mkdir -p "$proj/.claude/rules"
+  cp "$REAL_REPO/teams/$team/claude/rules/"*.md "$proj/.claude/rules/"
+}
+
 # --- Normal: no bundle / clean ---
 
 @test "sync: project with no bundle is a quiet no-op (exit 0)" {
@@ -151,3 +159,34 @@ matches_canonical() {  # project-relative-path  canonical-abs-path
   [ "$status" -eq 1 ]
   [[ "$output" == *"does not exist"* ]]
 }
+
+# --- Team overlays ---
+
+@test "sync: clean team overlay is a quiet no-op (exit 0)" {
+  install_team_overlay deepsat "$PROJ"
+  run bash "$SCRIPT" "$PROJ"
+  [ "$status" -eq 0 ]
+  [ -z "$output" ]
+}
+
+@test "sync: drifted team-overlay rule is auto-fixed and restored" {
+  install_team_overlay deepsat "$PROJ"
+  echo "junk drift" >> "$PROJ/.claude/rules/publishing.md"
+  run bash "$SCRIPT" "$PROJ"
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"team bundle 'deepsat'"* ]]
+  [[ "$output" == *"publishing.md"* ]]
+  matches_canonical ".claude/rules/publishing.md" "$REAL_REPO/teams/deepsat/claude/rules/publishing.md"
+}
+
+@test "sync: team overlay does NOT pull in generic claude-rules" {
+  install_team_overlay deepsat "$PROJ"   # only publishing.md present, no commits.md
+  echo "junk drift" >> "$PROJ/.claude/rules/publishing.md"
+  run bash "$SCRIPT" "$PROJ"
+  [ "$status" -eq 0 ]
+  # A team overlay owns only its own rule; the sync must not copy generic
+  # rules (commits.md, testing.md, ...) into the project the way a language
+  # bundle does.
+  [ ! -f "$PROJ/.claude/rules/commits.md" ]
+  [ ! -f "$PROJ/.claude/rules/testing.md" ]
+}