update project structure

- move agent to /agent
- change /beszel to /src
- update workflows and docker builds

agent/agent_cache_test.go

@@ -0,0 +1,89 @@
+//go:build testing
+// +build testing
+
+package agent
+
+import (
+	"testing"
+	"testing/synctest"
+	"time"
+
+	"github.com/henrygd/beszel/src/entities/system"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSessionCache_GetSet(t *testing.T) {
+	synctest.Test(t, func(t *testing.T) {
+		cache := NewSessionCache(69 * time.Second)
+
+		testData := &system.CombinedData{
+			Info: system.Info{
+				Hostname: "test-host",
+				Cores:    4,
+			},
+			Stats: system.Stats{
+				Cpu:     50.0,
+				MemPct:  30.0,
+				DiskPct: 40.0,
+			},
+		}
+
+		// Test initial state - should not be cached
+		data, isCached := cache.Get("session1")
+		assert.False(t, isCached, "Expected no cached data initially")
+		assert.NotNil(t, data, "Expected data to be initialized")
+		// Set data for session1
+		cache.Set("session1", testData)
+
+		time.Sleep(15 * time.Second)
+
+		// Get data for a different session - should be cached
+		data, isCached = cache.Get("session2")
+		assert.True(t, isCached, "Expected data to be cached for non-primary session")
+		require.NotNil(t, data, "Expected cached data to be returned")
+		assert.Equal(t, "test-host", data.Info.Hostname, "Hostname should match test data")
+		assert.Equal(t, 4, data.Info.Cores, "Cores should match test data")
+		assert.Equal(t, 50.0, data.Stats.Cpu, "CPU should match test data")
+		assert.Equal(t, 30.0, data.Stats.MemPct, "Memory percentage should match test data")
+		assert.Equal(t, 40.0, data.Stats.DiskPct, "Disk percentage should match test data")
+
+		time.Sleep(10 * time.Second)
+
+		// Get data for the primary session - should not be cached
+		data, isCached = cache.Get("session1")
+		assert.False(t, isCached, "Expected data not to be cached for primary session")
+		require.NotNil(t, data, "Expected data to be returned even if not cached")
+		assert.Equal(t, "test-host", data.Info.Hostname, "Hostname should match test data")
+		// if not cached, agent will update the data
+		cache.Set("session1", testData)
+
+		time.Sleep(45 * time.Second)
+
+		// Get data for a different session - should still be cached
+		_, isCached = cache.Get("session2")
+		assert.True(t, isCached, "Expected data to be cached for non-primary session")
+
+		// Wait for the lease to expire
+		time.Sleep(30 * time.Second)
+
+		// Get data for session2 - should not be cached
+		_, isCached = cache.Get("session2")
+		assert.False(t, isCached, "Expected data not to be cached after lease expiration")
+	})
+}
+
+func TestSessionCache_NilData(t *testing.T) {
+	// Create a new SessionCache
+	cache := NewSessionCache(30 * time.Second)
+
+	// Test setting nil data (should not panic)
+	assert.NotPanics(t, func() {
+		cache.Set("session1", nil)
+	}, "Setting nil data should not panic")
+
+	// Get data - should not be nil even though we set nil
+	data, _ := cache.Get("session2")
+	assert.NotNil(t, data, "Expected data to not be nil after setting nil data")
+}