初始提交：边缘AI算力机统一AI通讯层

internal/config/config_test.go

@@ -0,0 +1,149 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"sync"
+	"testing"
+	"time"
+)
+
+func writeTestConfig(t *testing.T, content string) string {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "config.yaml")
+	if err := os.WriteFile(path, []byte(content), 0644); err != nil {
+		t.Fatalf("write test config: %v", err)
+	}
+	return path
+}
+
+func TestLoadDefaults(t *testing.T) {
+	path := writeTestConfig(t, `
+server:
+  host: "127.0.0.1"
+  port: 9090
+models:
+  general-chat:
+    provider: ollama
+    actual_model: qwen2.5:0.5b
+    endpoint: http://127.0.0.1:11434
+    context_window: 32768
+    max_output_tokens: 4096
+    max_concurrency: 4
+    residency: always
+    cancel_supported: true
+`)
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load failed: %v", err)
+	}
+	if cfg.Server.Port != 9090 {
+		t.Errorf("expected port 9090, got %d", cfg.Server.Port)
+	}
+	if cfg.Scheduler.MaxRunningTasks != 8 {
+		t.Errorf("expected default max_running_tasks 8, got %d", cfg.Scheduler.MaxRunningTasks)
+	}
+	if cfg.Timeouts.DefaultQueueMs != 5000 {
+		t.Errorf("expected default queue_ms 5000, got %d", cfg.Timeouts.DefaultQueueMs)
+	}
+	if cfg.Context.SafetyMarginRatio != 0.08 {
+		t.Errorf("expected default safety_margin 0.08, got %f", cfg.Context.SafetyMarginRatio)
+	}
+	if _, ok := cfg.Models["general-chat"]; !ok {
+		t.Error("expected general-chat model in config")
+	}
+}
+
+func TestValidate(t *testing.T) {
+	path := writeTestConfig(t, `
+scheduler:
+  max_running_tasks: -1
+`)
+	_, err := Load(path)
+	if err == nil {
+		t.Error("expected validation error for max_running_tasks=-1")
+	}
+}
+
+func TestValidateBackpressure(t *testing.T) {
+	path := writeTestConfig(t, `
+backpressure:
+  level1_threshold: 0.90
+  level2_threshold: 0.80
+  level3_threshold: 0.95
+`)
+	_, err := Load(path)
+	if err == nil {
+		t.Error("expected validation error for level1 >= level2")
+	}
+}
+
+func TestEnvOverride(t *testing.T) {
+	path := writeTestConfig(t, `
+server:
+  port: 8080
+`)
+	os.Setenv("EDGEAI_SERVER_PORT", "9999")
+	defer os.Unsetenv("EDGEAI_SERVER_PORT")
+
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load failed: %v", err)
+	}
+	if cfg.Server.Port != 9999 {
+		t.Errorf("expected port 9999 from env, got %d", cfg.Server.Port)
+	}
+}
+
+func TestParsePriority(t *testing.T) {
+	tests := []struct {
+		input string
+		want  int
+	}{
+		{"P0", 0}, {"P1", 1}, {"P2", 2}, {"P3", 3}, {"P4", 4},
+		{"p0", 0}, {"invalid", 2}, {"", 2},
+	}
+	for _, tt := range tests {
+		got := ParsePriority(tt.input)
+		if got != tt.want {
+			t.Errorf("ParsePriority(%q) = %d, want %d", tt.input, got, tt.want)
+		}
+	}
+}
+
+func TestPriorityName(t *testing.T) {
+	if PriorityName(0) != "P0" {
+		t.Errorf("expected P0, got %s", PriorityName(0))
+	}
+	if PriorityName(2) != "P2" {
+		t.Errorf("expected P2, got %s", PriorityName(2))
+	}
+	if PriorityName(10) != "P2" {
+		t.Errorf("expected P2 for out-of-range, got %s", PriorityName(10))
+	}
+}
+
+func TestGetUpdate(t *testing.T) {
+	cfg := &Config{}
+	Update(cfg)
+	time.Sleep(10 * time.Millisecond)
+	got := Get()
+	if got != cfg {
+		t.Error("Get/Update mismatch")
+	}
+}
+
+func TestConfigPath(t *testing.T) {
+	os.Unsetenv("EDGEAI_CONFIG_PATH")
+	if got := ConfigPath(); got != "configs/config.yaml" {
+		t.Errorf("expected default path, got %s", got)
+	}
+	os.Setenv("EDGEAI_CONFIG_PATH", "/tmp/test.yaml")
+	defer os.Unsetenv("EDGEAI_CONFIG_PATH")
+	if got := ConfigPath(); got != "/tmp/test.yaml" {
+		t.Errorf("expected env path, got %s", got)
+	}
+}
+
+// Ensure package compiles with sync import.
+var _ = sync.RWMutex{}