feat(v2): 账户配置注册表(config.accounts + env 取凭证 + 渠道/区域筛选)

internal/accounts/registry_test.go

@@ -0,0 +1,28 @@
+package accounts_test
+
+import (
+	"testing"
+
+	"github.com/wangjia/pay/config"
+	"github.com/wangjia/pay/internal/accounts"
+)
+
+func TestEnabledForAndCredential(t *testing.T) {
+	t.Setenv("USDT_A1_XPUB", "xpub-abc")
+	reg := accounts.New([]config.AccountConfig{
+		{AccountID: "usdt-a1", Channel: "crypto", Region: "global", Enabled: true, Weight: 1, CredentialEnvPrefix: "USDT_A1"},
+		{AccountID: "usdt-a2", Channel: "crypto", Region: "global", Enabled: false, Weight: 1, CredentialEnvPrefix: "USDT_A2"},
+		{AccountID: "ali-cn1", Channel: "alipay", Region: "cn", Enabled: true, Weight: 1, CredentialEnvPrefix: "ALI_CN1"},
+	})
+
+	got := reg.EnabledFor("crypto", "global")
+	if len(got) != 1 || got[0].AccountID != "usdt-a1" {
+		t.Fatalf("EnabledFor crypto/global = %+v", got)
+	}
+	if reg.Credential("usdt-a1", "XPUB") != "xpub-abc" {
+		t.Fatalf("Credential xpub 取值失败")
+	}
+	if len(reg.EnabledFor("alipay", "global")) != 0 {
+		t.Fatalf("alipay 在 global 应无账户")
+	}
+}