feat: 接入 Database 三资源 API 与分层绑定协调
确定单库单账号、集群级 Database、资源侧先写绑定和凭据定位合同。领域层承载纯规则，service 协調流程，Kubernetes adapter 负责资源呈现与版本保护。 验证：全量 make test、三轮 race、真实 API server 并发与重启补写、最小 RBAC/watch、lint 和文档检查通过。供应、凭据交付及删除清理尚未实现，保留 DeletionPending/finalizer 边界。
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package binding
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import "testing"
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const (
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testNamespace = "apps"
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testApp = "app"
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testInstance = "shared"
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testOwner = "owner"
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testExisting = "existing"
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testOther = "other"
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)
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func TestRequestResolve(t *testing.T) {
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tenant := TenantIdentity{Namespace: testNamespace, Name: testApp, UID: "tenant-uid"}
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tests := []struct {
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name string
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request Request
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valid bool
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}{
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{"动态默认值", Request{Provision: &ProvisionRequest{Instance: testInstance}}, true},
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{"显式名称", Request{Provision: &ProvisionRequest{Instance: testInstance, Database: "custom", LoginRole: testOwner}}, true},
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{"已有资源", Request{ExistingDatabase: testExisting}, true},
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{"没有入口", Request{}, false},
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{"同时指定入口", Request{Provision: &ProvisionRequest{}, ExistingDatabase: testExisting}, false},
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{"非法库名", Request{Provision: &ProvisionRequest{Database: "bad-name"}}, false},
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{"非法角色名", Request{Provision: &ProvisionRequest{LoginRole: "bad-name"}}, false},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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target, err := tc.request.Resolve(tenant)
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if (err == nil) != tc.valid {
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t.Fatalf("Resolve() = %v, valid = %v", err, tc.valid)
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}
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if !tc.valid {
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return
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}
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if tc.request.Provision == nil {
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if target.Name != testExisting || target.Provision != nil {
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t.Fatal("已有资源不应推导 Instance 或供应请求")
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}
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return
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}
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if target.Name != "tenant-tenant-uid" || target.Provision == tc.request.Provision {
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t.Fatal("目标名称不稳定，或 Resolve 未复制输入")
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}
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if tc.request.Provision.Database == "" && target.Provision.Database != tenant.Name {
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t.Fatal("数据库默认名称不符")
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}
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if tc.request.Provision.LoginRole == "" && target.Provision.LoginRole != tenant.Name {
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t.Fatal("角色默认名称不符")
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}
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})
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}
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}
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func TestDatabaseCanBind(t *testing.T) {
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tenant := Tenant{Identity: TenantIdentity{Namespace: testNamespace, Name: testApp, UID: "current"}}
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tests := []struct {
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name string
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change func(*Database, *Tenant)
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reason string
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}{
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{"空闲且就绪", func(*Database, *Tenant) {}, ""},
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{"同一绑定重试", func(d *Database, t *Tenant) { d.Tenant = &t.Identity; d.Ready = false }, ""},
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{"尚未观察", func(d *Database, _ *Tenant) { d.Ready = false }, DependencyUnavailable},
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{"尚未Available", func(d *Database, _ *Tenant) { d.Phase = "Pending" }, DependencyUnavailable},
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{"Released", func(d *Database, _ *Tenant) { d.Phase = "Released" }, Conflict},
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{"删除标记", func(d *Database, _ *Tenant) { d.Deleting = true }, Conflict},
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{"删除阶段", func(d *Database, _ *Tenant) { d.Phase = Deleting }, Conflict},
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{"已被占用", func(d *Database, _ *Tenant) { d.Tenant = &TenantIdentity{UID: testOther} }, Conflict},
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{"同名新申请", func(d *Database, t *Tenant) { old := t.Identity; old.UID = "old"; d.Tenant = &old }, Conflict},
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{"同名新资源", func(_ *Database, t *Tenant) { t.Database = &Identity{Name: "resource", UID: "old"} }, Conflict},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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database := Database{Identity: Identity{Name: "resource", UID: "database-uid"}, Phase: "Available", Ready: true}
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currentTenant := tenant
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tc.change(&database, ¤tTenant)
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checkIssue(t, database.CanBind(currentTenant), tc.reason)
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})
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}
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}
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func TestInstanceCheck(t *testing.T) {
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instance := Instance{Identity: Identity{UID: "instance"}, Ready: true}
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checkIssue(t, instance.Check(nil), "")
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checkIssue(t, instance.Check(&Database{InstanceUID: "instance"}), "")
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checkIssue(t, instance.Check(&Database{InstanceUID: "replaced"}), Conflict)
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instance.Ready = false
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checkIssue(t, instance.Check(nil), DependencyUnavailable)
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instance.Ready, instance.Deleting = true, true
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checkIssue(t, instance.Check(nil), DependencyUnavailable)
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}
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func TestMatchesProvision(t *testing.T) {
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tenant := TenantIdentity{Namespace: testNamespace, Name: testApp, UID: "tenant"}
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target := Target{Provision: &ProvisionRequest{Instance: testInstance, Database: testApp, LoginRole: testOwner}}
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database := Database{Source: "Provision", Instance: testInstance, Name: testApp, LoginRole: testOwner, Tenant: &tenant}
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if !database.MatchesProvision(target, tenant) {
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t.Fatal("相同目标与身份应允许重试")
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}
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mutations := []func(*Database){
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func(d *Database) { d.Source = "Import" },
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func(d *Database) { d.Instance = testOther },
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func(d *Database) { d.Name = testOther },
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func(d *Database) { d.LoginRole = testOther },
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func(d *Database) { d.Tenant = nil },
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func(d *Database) { d.Tenant = &TenantIdentity{UID: testOther} },
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}
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for _, mutate := range mutations {
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changed := database
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mutate(&changed)
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if changed.MatchesProvision(target, tenant) {
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t.Fatal("不匹配的记录不能仅靠名称被认领")
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}
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}
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if database.MatchesProvision(Target{}, tenant) {
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t.Fatal("已有资源申请不是动态供应重试")
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}
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}
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func checkIssue(t *testing.T, issue *Issue, reason string) {
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t.Helper()
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if reason == "" {
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if issue != nil {
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t.Fatalf("不应拒绝: %+v", issue)
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}
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return
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}
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if issue == nil || issue.Reason != reason || issue.Message == "" {
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t.Fatalf("issue = %+v, want %s 与可读诊断", issue, reason)
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}
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}
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