add a test script for postgres

postgres/test.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+set -uo pipefail
+
+# postgres/test.sh — Smoke tests for PostgreSQL on lind-wasm
+#
+# Verifies that postgres and initdb binaries are installed correctly
+# and can handle basic invocations (--version, --help).
+
+LIND_WASM_ROOT="${LIND_WASM_ROOT:-/home/lind/lind-wasm}"
+LINDFS_ROOT="$LIND_WASM_ROOT/lindfs"
+LIND_RUN="sudo $LIND_WASM_ROOT/scripts/lind_run"
+
+cd "$LINDFS_ROOT"
+
+echo "Starting postgres smoke tests..."
+
+FAILS=0
+
+check_result() {
+    local test_name="$1"
+    local expected="$2"
+    local actual="$3"
+
+    if [ "$expected" = "$actual" ]; then
+        echo "[PASS] $test_name"
+    else
+        echo "[FAIL] $test_name"
+        echo "  Expected: '$expected'"
+        echo "  Actual:   '$actual'"
+        FAILS=$((FAILS + 1))
+    fi
+}
+
+# 1. Check that binaries exist in lindfs/bin
+echo "--- Binary installation checks ---"
+
+if [ -f bin/postgres ]; then
+    echo "[PASS] postgres binary exists at bin/postgres"
+else
+    echo "[FAIL] postgres binary not found at bin/postgres"
+    FAILS=$((FAILS + 1))
+fi
+
+if [ -f bin/initdb ]; then
+    echo "[PASS] initdb binary exists at bin/initdb"
+else
+    echo "[FAIL] initdb binary not found at bin/initdb"
+    FAILS=$((FAILS + 1))
+fi
+
+# 2. postgres --version
+echo "--- Version checks ---"
+
+ACTUAL=$($LIND_RUN /bin/postgres --version 2>/dev/null)
+check_result "postgres --version" "postgres (PostgreSQL) 19devel" "$ACTUAL"
+
+ACTUAL=$($LIND_RUN /bin/initdb --version 2>/dev/null)
+check_result "initdb --version" "initdb (PostgreSQL) 19devel" "$ACTUAL"
+
+# 3. postgres --help (check that it produces usage output)
+echo "--- Help output checks ---"
+
+HELP_OUTPUT=$($LIND_RUN /bin/postgres --help 2>/dev/null)
+if echo "$HELP_OUTPUT" | grep -q "postgres is the PostgreSQL server"; then
+    echo "[PASS] postgres --help produces expected output"
+else
+    echo "[FAIL] postgres --help did not produce expected output"
+    FAILS=$((FAILS + 1))
+fi
+
+echo "-----------------------------------"
+if [ $FAILS -eq 0 ]; then
+    echo "Success: All postgres smoke tests passed!"
+    exit 0
+else
+    echo "Failure: $FAILS test(s) failed."
+    exit 1
+fi