test: add coverage for ADDITIONAL_PACKAGES and TAIL_FTL_LOG

- Add CONTAINER_PACKAGES shared container (ADDITIONAL_PACKAGES=wget)
  and a test that verifies the package is installed and on PATH
- Add inline container test for TAIL_FTL_LOG=true, verifying that
  FTL log lines tagged [FTL] appear in docker logs output

Signed-off-by: Adam Warner <adam@adwarner.co.uk>
Signed-off-by: Adam Warner <me@adamwarner.co.uk>

Author: PromoFaux

test/run.sh

@@ -53,8 +53,10 @@ CONTAINER_CUSTOM=$(start_container \
     -e FTLCONF_webserver_api_password=1234567890 \
     -e FTLCONF_webserver_port=8080 \
     -e FTLCONF_dns_upstreams="8.8.8.8;1.1.1.1")
+CONTAINER_PACKAGES=$(start_container \
+    -e ADDITIONAL_PACKAGES=wget)
 
-export CONTAINER_DEFAULT CONTAINER_CUSTOM CIPLATFORM
+export CONTAINER_DEFAULT CONTAINER_CUSTOM CONTAINER_PACKAGES CIPLATFORM
 
 # ---- Wait for containers to be ready ----------------------------------------
 
@@ -76,7 +78,7 @@ wait_for_ftl() {
     echo "ready (${elapsed}s)"
 }
 
-for container in "$CONTAINER_DEFAULT" "$CONTAINER_CUSTOM"; do
+for container in "$CONTAINER_DEFAULT" "$CONTAINER_CUSTOM" "$CONTAINER_PACKAGES"; do
     wait_for_ftl "$container"
 done
 

test/test_suite.bats

@@ -62,6 +62,13 @@
 }
 
 
+# ---- Additional packages ----------------------------------------------------
+
+@test "ADDITIONAL_PACKAGES are installed" {
+    run docker exec "$CONTAINER_PACKAGES" which wget
+    [ "$status" -eq 0 ]
+}
+
 # ---- Container configuration ------------------------------------------------
 
 @test "Cron file is valid" {
@@ -94,3 +101,34 @@
     [ "$status" -eq 0 ]
     [[ "$output" == *"Assigning password defined by Environment Variable"* ]]
 }
+
+# ---- TAIL_FTL_LOG -----------------------------------------------------------
+
+@test "TAIL_FTL_LOG causes FTL log lines to appear in docker logs" {
+    local platform_args=()
+    [ -n "${CIPLATFORM:-}" ] && platform_args=(--platform "$CIPLATFORM")
+
+    local container
+    container=$(docker run -d -t "${platform_args[@]}" \
+        -e TZ="Europe/London" \
+        -e TAIL_FTL_LOG=true \
+        pihole:test)
+
+    local timeout=60
+    local elapsed=0
+    until docker logs "$container" 2>&1 | grep -q "########## FTL started"; do
+        sleep 1
+        elapsed=$(( elapsed + 1 ))
+        if (( elapsed >= timeout )); then
+            docker rm -f "$container"
+            echo "FTL did not start within ${timeout}s"
+            return 1
+        fi
+    done
+
+    run docker logs "$container"
+    docker rm -f "$container"
+
+    [ "$status" -eq 0 ]
+    [[ "$output" == *"[FTL]"* ]]
+}