add database connection to backend

backend/scripts/create_test_db.sql

@@ -0,0 +1,2 @@
+DROP DATABASE IF EXISTS nuchat_test;
+CREATE DATABASE nuchat_test;

backend/scripts/test.sh

@@ -1,11 +1,21 @@
 #!/usr/bin/env bash
 
+POSTGRES_URL=${POSTGRES_URL:-"postgresql://postgres:postgres@localhost:5432"}
+
 if ! command -v cargo-nextest > /dev/null 2>&1; then
 	echo "Command not found cargo-nextest"
 	echo "Try installing with cargo install cargo-nextest"
 	exit 1
 fi
 
+psql "$POSTGRES_URL" -f ./scripts/create_test_db.sql
+
+if [ "$?" -ne "0" ]; then
+	echo "Unable to connect to database, make sure it is started"
+	exit 1
+fi
+
+
 if [ ! -d logs ]; then
 	mkdir logs
 fi
@@ -14,7 +24,7 @@ fi
 curl -s -X POST localhost:7001/admin/shutdown 2>&1 > /dev/null
 
 # start server
-cargo run -- --port 7001 2>&1 > logs/nuchat.log & 
+cargo run -- --port 7001 --postgres-url "$POSTGRES_URL" 2>&1 > logs/nuchat.log & 
 
 # run tests
 cargo nextest run --color=always 2>&1 | tee logs/test-output.log