Fix Windows integration tests: disable SSL via PGSQL_TEST_NO_SSL env

Windows CI runs PostgreSQL without TLS (chmod/SSL not supported).
Integration tests now check PGSQL_TEST_NO_SSL env var to use
ssl_mode=Disable instead of Require. Set automatically in CI for
Windows runner.

Author: bikallem

.github/workflows/ci.yml

@@ -101,4 +101,6 @@ jobs:
       - name: Integration tests (Windows)
         if: runner.os == 'Windows'
         shell: bash
+        env:
+          PGSQL_TEST_NO_SSL: "1"
         run: make test-integration

src/tests/integration_test.mbt

@@ -7,13 +7,18 @@
 /// Start with: ./tests/setup-pg.sh start
 /// Run with:   moon test --target native tests/
 fn get_config() -> @pgsql.Config {
+  // Use Disable when PGSQL_TEST_NO_SSL is set (e.g. Windows CI without TLS)
+  let ssl_mode : @pgsql.SslMode = match @sys.get_env_var("PGSQL_TEST_NO_SSL") {
+    Some(_) => Disable
+    None => Require
+  }
   @pgsql.Config::new(
     "postgres",
     "postgres",
     "postgres",
     host="127.0.0.1",
     port=5433,
-    ssl_mode=Require,
+    ssl_mode~,
   )
 }
 
@@ -593,7 +598,7 @@ async test "auth error: wrong password" {
     "postgres",
     host="127.0.0.1",
     port=5433,
-    ssl_mode=Require,
+    ssl_mode=get_config().ssl_mode(),
   )
   let mut got_auth_error = false
   ignore((@pgsql.Client::connect(bad_config) : @pgsql.Client)) catch {

src/tests/moon.pkg

@@ -2,6 +2,7 @@ import {
   "bikallem/pgsql" @pgsql,
   "moonbitlang/async",
   "moonbitlang/core/encoding/utf8" @utf8,
+  "moonbitlang/x/sys" @sys,
 } for "test"
 
 options(

src/tests/setup-pg.sh

@@ -77,6 +77,7 @@ start() {
       ssl_enabled=on
     else
       echo "Note: starting without TLS (Windows or openssl unavailable)"
+      export PGSQL_TEST_NO_SSL=1
     fi
 
     # Configure postgresql.conf