feat: apply_output with selective kill + persistence

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/wallp.bats b/tests/wallp.bats
index 52e6706..f8ea2d7 100644
--- a/tests/wallp.bats
+++ b/tests/wallp.bats
@@ -154,3 +154,28 @@ teardown() {
   [ "$status" -eq 1 ]
   [[ "$output" == *"Z="* ]]
 }
+
+@test "apply_output skips missing file without writing pid" {
+  CONF_OUTPUT_H="DP-1"
+  run apply_output H "$HOME/nope.png"
+  [ "$status" -eq 1 ]
+  [ ! -e "$HOME/.cache/wallp/H.pid" ]
+}
+
+@test "apply_output sets swaybg and persists path" {
+  CONF_OUTPUT_H="DP-1"
+  : > "$HOME/real.png"
+  apply_output H "$HOME/real.png"
+  [ "$?" -eq 0 ]
+  [ "$(cat "$HOME/.config/wallp/wall_h")" = "$HOME/real.png" ]
+  [ -f "$HOME/.cache/wallp/H.pid" ]
+  grep -q "swaybg -o DP-1 -i $HOME/real.png" "$HOME/calls.log"
+}
+
+@test "apply_output on V does not touch H pid" {
+  CONF_OUTPUT_H="DP-1"; CONF_OUTPUT_V="DP-3"
+  mkdir -p "$HOME/.cache/wallp"; echo 99999 > "$HOME/.cache/wallp/H.pid"
+  : > "$HOME/v.png"
+  apply_output V "$HOME/v.png"
+  [ "$(cat "$HOME/.cache/wallp/H.pid")" = "99999" ]
+}