Merge pull request #22 from pyrocat101/reuseportTests

add some tests for SO_REUSEPORT

tests/so_reuseport/BUILD.bazel

@@ -1,4 +1,6 @@
-load("@rules_itest//:itest.bzl", "itest_service")
+load("@aspect_rules_js//js:defs.bzl", "js_test")
+load("@rules_itest//:itest.bzl", "itest_service", "service_test")
+load("@rules_go//go:def.bzl", "go_test")
 load("//:must_fail.bzl", "must_fail")
 
 NOT_WINDOWS = select({
@@ -17,6 +19,9 @@ itest_service(
     exe = "//go_service",
     health_check_timeout = "5s",
     http_health_check_address = "http://127.0.0.1:$${PORT}",
+    named_ports = [
+        "named_port1",
+    ],
     so_reuseport_aware = True,
     target_compatible_with = NOT_WINDOWS,
 )
@@ -43,3 +48,27 @@ must_fail(
     target_compatible_with = NOT_WINDOWS,
     test = "_no_reuseport_service_hygiene_test",
 )
+
+go_test(
+    name = "_so_reuseport_test",
+    srcs = ["so_reuseport_test.go"],
+    tags = ["manual"],
+)
+
+service_test(
+    name = "so_reuseport_test",
+    services = [":reuseport_service"],
+    test = ":_so_reuseport_test",
+)
+
+js_test(
+    name = "_so_reuseport_js_test",
+    entry_point = "so_reuseport_test.mjs",
+    tags = ["manual"],
+)
+
+service_test(
+    name = "so_reuseport_js_test",
+    services = [":reuseport_service"],
+    test = ":_so_reuseport_js_test",
+)

tests/so_reuseport/so_reuseport_test.go

@@ -0,0 +1,39 @@
+package so_reuseport
+
+import (
+	"os"
+	"os/exec"
+	"testing"
+
+	"net"
+)
+
+func TestNoSoResusePort(t *testing.T) {
+	portNames := []string{
+		"@@//so_reuseport:reuseport_service",
+		"@@//so_reuseport:reuseport_service:named_port1",
+	}
+
+	t.Logf("ASSIGNED_PORTS: %v", os.Getenv("ASSIGNED_PORTS"))
+
+	for _, portName := range portNames {
+		t.Logf("Testing port: %s", portName)
+		cmd := exec.Command(os.Getenv("GET_ASSIGNED_PORT_BIN"), portName)
+		port, err := cmd.CombinedOutput()
+		if err != nil {
+			t.Fatalf("Failed to get port: %v", err)
+		}
+
+		if len(port) == 0 {
+			t.Fatalf("Cannot get port")
+		}
+		t.Logf("Port assigned: %s", port)
+
+		// Should fail because we didn't set SO_REUSEPORT
+		_, err = net.Listen("tcp", "127.0.0.1:"+string(port))
+		if err == nil {
+			t.Fatalf("Expected error, got nil")
+		}
+		t.Logf("Expected error: %v", err)
+	}
+}

tests/so_reuseport/so_reuseport_test.mjs

@@ -0,0 +1,22 @@
+import assert from 'assert/strict';
+import http from 'http';
+import process from 'process';
+
+const ports = JSON.parse(process.env.ASSIGNED_PORTS)
+
+for (const portName of [
+  "@@//so_reuseport:reuseport_service",
+  "@@//so_reuseport:reuseport_service:named_port1",
+]) {
+  const port = ports[portName];
+  assert(port);
+
+  const server = http.createServer(() => {});
+  server.on('error', (err) => {
+    assert.equal(err.code, 'EADDRINUSE');
+  });
+  server.listen({
+    host: '127.0.0.1',
+    port: parseInt(port, 10),
+  });
+}