refactor(msg_gateway): restructure and rename message_gateway aligned with custom_example

backend/plugins/domain/msg_gateway/plugin_test.go

@@ -0,0 +1,61 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package msg_gateway_test
+
+import (
+	"Wavelet/core"
+	"Wavelet/plugins/domain/msg_gateway"
+	"context"
+	"io/fs"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMsgGatewayPluginUnit(t *testing.T) {
+	ctx := core.NewContext(context.Background())
+	p := msg_gateway.New()
+	assert.Equal(t, "msg_gateway", p.Name())
+	assert.Equal(t, "1.0.0", p.Manifest().Version)
+	require.NoError(t, p.Apply(ctx))
+
+	// Verify migrations
+	entry, ok := ctx.Migrations().Get("msg_gateway")
+	require.True(t, ok)
+	entries, err := fs.ReadDir(entry.FS, entry.Dir)
+	require.NoError(t, err)
+	assert.NotEmpty(t, entries)
+
+	// Verify tasks
+	task, ok := ctx.Tasks().Get("msg_gateway:push_notification")
+	require.True(t, ok)
+	assert.Equal(t, 3, task.Retry)
+
+	// Verify schedules
+	sched, ok := ctx.Schedules().Get("msg_gateway:cleanup_pairing_codes")
+	require.True(t, ok)
+	assert.Equal(t, "*/10 * * * *", sched.Spec)
+
+	// Verify settings
+	setting, ok := ctx.Settings().Get("msg_gateway.max_bindings_per_user")
+	require.True(t, ok)
+	assert.Equal(t, 5, setting.Default)
+}
+
+// TestEveryScheduleHasTaskHandler 回归：RegisterCron 仅登记调度；若同名任务从未
+// Register，则每次触发都投递到无人处理的任务类型，清理逻辑静默失效。
+func TestEveryScheduleHasTaskHandler(t *testing.T) {
+	ctx := core.NewContext(context.Background())
+	require.NoError(t, msg_gateway.New().Apply(ctx))
+
+	schedules := ctx.Schedules().Schedules()
+	require.NotEmpty(t, schedules)
+
+	for _, sched := range schedules {
+		_, ok := ctx.Tasks().Get(sched.TaskType)
+		assert.Truef(t, ok, "schedule %q dispatches to task %q, which is never registered",
+			sched.Spec, sched.TaskType)
+	}
+}