package ca import ( "crypto/x509" "encoding/json" "fmt" "io/ioutil" "testing" "time" "github.com/hashicorp/go-hclog" vaultapi "github.com/hashicorp/vault/api" vaultconst "github.com/hashicorp/vault/sdk/helper/consts" "github.com/stretchr/testify/require" "github.com/hashicorp/consul/agent/connect" "github.com/hashicorp/consul/agent/structs" "github.com/hashicorp/consul/sdk/testutil/retry" ) func TestVaultCAProvider_ParseVaultCAConfig(t *testing.T) { cases := map[string]struct { rawConfig map[string]interface{} expConfig *structs.VaultCAProviderConfig expError string }{ "no token and no auth method provided": { rawConfig: map[string]interface{}{}, expError: "must provide a Vault token or configure a Vault auth method", }, "both token and auth method provided": { rawConfig: map[string]interface{}{"Token": "test", "AuthMethod": map[string]interface{}{"Type": "test"}}, expError: "only one of Vault token or Vault auth method can be provided, but not both", }, "no root PKI path": { rawConfig: map[string]interface{}{"Token": "test"}, expError: "must provide a valid path to a root PKI backend", }, "no root intermediate path": { rawConfig: map[string]interface{}{"Token": "test", "RootPKIPath": "test"}, expError: "must provide a valid path for the intermediate PKI backend", }, "adds a slash to RootPKIPath and IntermediatePKIPath": { rawConfig: map[string]interface{}{"Token": "test", "RootPKIPath": "test", "IntermediatePKIPath": "test"}, expConfig: &structs.VaultCAProviderConfig{ CommonCAProviderConfig: defaultCommonConfig(), Token: "test", RootPKIPath: "test/", IntermediatePKIPath: "test/", }, }, } for name, c := range cases { t.Run(name, func(t *testing.T) { config, err := ParseVaultCAConfig(c.rawConfig) if c.expError != "" { require.EqualError(t, err, c.expError) } else { require.NoError(t, err) require.Equal(t, c.expConfig, config) } }) } } func TestVaultCAProvider_configureVaultAuthMethod(t *testing.T) { cases := map[string]struct { expLoginPath string params map[string]interface{} expError string }{ "alicloud": {expLoginPath: "auth/alicloud/login"}, "approle": {expLoginPath: "auth/approle/login"}, "aws": {expLoginPath: "auth/aws/login"}, "azure": {expLoginPath: "auth/azure/login"}, "cf": {expLoginPath: "auth/cf/login"}, "github": {expLoginPath: "auth/github/login"}, "gcp": {expLoginPath: "auth/gcp/login"}, "jwt": {expLoginPath: "auth/jwt/login"}, "kerberos": {expLoginPath: "auth/kerberos/login"}, "kubernetes": {expLoginPath: "auth/kubernetes/login", params: map[string]interface{}{"jwt": "fake"}}, "ldap": {expLoginPath: "auth/ldap/login/foo", params: map[string]interface{}{"username": "foo"}}, "oci": {expLoginPath: "auth/oci/login/foo", params: map[string]interface{}{"role": "foo"}}, "okta": {expLoginPath: "auth/okta/login/foo", params: map[string]interface{}{"username": "foo"}}, "radius": {expLoginPath: "auth/radius/login/foo", params: map[string]interface{}{"username": "foo"}}, "cert": {expLoginPath: "auth/cert/login"}, "token": {expError: "'token' auth method is not supported via auth method configuration; please provide the token with the 'token' parameter in the CA configuration"}, "userpass": {expLoginPath: "auth/userpass/login/foo", params: map[string]interface{}{"username": "foo"}}, "unsupported": {expError: "auth method \"unsupported\" is not supported"}, } for authMethodType, c := range cases { t.Run(authMethodType, func(t *testing.T) { loginPath, err := configureVaultAuthMethod(&structs.VaultAuthMethod{ Type: authMethodType, Params: c.params, }) if c.expError == "" { require.NoError(t, err) require.Equal(t, c.expLoginPath, loginPath) } else { require.EqualError(t, err, c.expError) } }) } } func TestVaultCAProvider_VaultTLSConfig(t *testing.T) { config := &structs.VaultCAProviderConfig{ CAFile: "/capath/ca.pem", CAPath: "/capath/", CertFile: "/certpath/cert.pem", KeyFile: "/certpath/key.pem", TLSServerName: "server.name", TLSSkipVerify: true, } tlsConfig := vaultTLSConfig(config) require.Equal(t, config.CAFile, tlsConfig.CACert) require.Equal(t, config.CAPath, tlsConfig.CAPath) require.Equal(t, config.CertFile, tlsConfig.ClientCert) require.Equal(t, config.KeyFile, tlsConfig.ClientKey) require.Equal(t, config.TLSServerName, tlsConfig.TLSServerName) require.Equal(t, config.TLSSkipVerify, tlsConfig.Insecure) } func TestVaultCAProvider_Configure(t *testing.T) { SkipIfVaultNotPresent(t) testcases := []struct { name string rawConfig map[string]interface{} expectedValue func(t *testing.T, v *VaultProvider) }{ { name: "DefaultConfig", rawConfig: map[string]interface{}{}, expectedValue: func(t *testing.T, v *VaultProvider) { headers := v.client.Headers() require.Equal(t, "", headers.Get(vaultconst.NamespaceHeaderName)) require.Equal(t, "pki-root/", v.config.RootPKIPath) require.Equal(t, "pki-intermediate/", v.config.IntermediatePKIPath) }, }, { name: "TestConfigWithNamespace", rawConfig: map[string]interface{}{"namespace": "ns1"}, expectedValue: func(t *testing.T, v *VaultProvider) { h := v.client.Headers() require.Equal(t, "ns1", h.Get(vaultconst.NamespaceHeaderName)) }, }, } for _, testcase := range testcases { t.Run(testcase.name, func(t *testing.T) { provider, _ := testVaultProviderWithConfig(t, true, testcase.rawConfig) testcase.expectedValue(t, provider) }) } return } func TestVaultCAProvider_SecondaryActiveIntermediate(t *testing.T) { SkipIfVaultNotPresent(t) provider, testVault := testVaultProviderWithConfig(t, false, nil) defer testVault.Stop() cert, err := provider.ActiveIntermediate() require.Empty(t, cert) require.NoError(t, err) } func TestVaultCAProvider_RenewToken(t *testing.T) { SkipIfVaultNotPresent(t) testVault, err := runTestVault(t) require.NoError(t, err) testVault.WaitUntilReady(t) // Create a token with a short TTL to be renewed by the provider. ttl := 1 * time.Second tcr := &vaultapi.TokenCreateRequest{ TTL: ttl.String(), } secret, err := testVault.client.Auth().Token().Create(tcr) require.NoError(t, err) providerToken := secret.Auth.ClientToken _, err = createVaultProvider(t, true, testVault.Addr, providerToken, nil) require.NoError(t, err) // Check the last renewal time. secret, err = testVault.client.Auth().Token().Lookup(providerToken) require.NoError(t, err) firstRenewal, err := secret.Data["last_renewal_time"].(json.Number).Int64() require.NoError(t, err) // Wait past the TTL and make sure the token has been renewed. retry.Run(t, func(r *retry.R) { secret, err = testVault.client.Auth().Token().Lookup(providerToken) require.NoError(r, err) lastRenewal, err := secret.Data["last_renewal_time"].(json.Number).Int64() require.NoError(r, err) require.Greater(r, lastRenewal, firstRenewal) }) } func TestVaultCAProvider_Bootstrap(t *testing.T) { SkipIfVaultNotPresent(t) providerWDefaultRootCertTtl, testvault1 := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", }) defer testvault1.Stop() client1 := testvault1.client providerCustomRootCertTtl, testvault2 := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", "RootCertTTL": "8761h", }) defer testvault2.Stop() client2 := testvault2.client cases := []struct { certFunc func() (string, error) backendPath string rootCaCreation bool provider *VaultProvider client *vaultapi.Client expectedRootCertTTL string }{ { certFunc: func() (string, error) { root, err := providerWDefaultRootCertTtl.GenerateRoot() return root.PEM, err }, backendPath: "pki-root/", rootCaCreation: true, client: client1, provider: providerWDefaultRootCertTtl, expectedRootCertTTL: structs.DefaultRootCertTTL, }, { certFunc: providerCustomRootCertTtl.ActiveIntermediate, backendPath: "pki-intermediate/", rootCaCreation: false, provider: providerCustomRootCertTtl, client: client2, expectedRootCertTTL: "8761h", }, } // Verify the root and intermediate certs match the ones in the vault backends for _, tc := range cases { provider := tc.provider client := tc.client cert, err := tc.certFunc() require.NoError(t, err) req := client.NewRequest("GET", "/v1/"+tc.backendPath+"ca/pem") resp, err := client.RawRequest(req) require.NoError(t, err) bytes, err := ioutil.ReadAll(resp.Body) require.NoError(t, err) require.Equal(t, cert, string(bytes)+"\n") // Should be a valid CA cert parsed, err := connect.ParseCert(cert) require.NoError(t, err) require.True(t, parsed.IsCA) require.Len(t, parsed.URIs, 1) require.Equal(t, fmt.Sprintf("spiffe://%s.consul", provider.clusterID), parsed.URIs[0].String()) // test that the root cert ttl as applied if tc.rootCaCreation { rootCertTTL, err := time.ParseDuration(tc.expectedRootCertTTL) require.NoError(t, err) expectedNotAfter := time.Now().Add(rootCertTTL).UTC() require.WithinDuration(t, expectedNotAfter, parsed.NotAfter, 10*time.Minute, "expected parsed cert ttl to be the same as the value configured") } } } func assertCorrectKeyType(t *testing.T, want, certPEM string) { t.Helper() cert, err := connect.ParseCert(certPEM) require.NoError(t, err) switch want { case "ec": require.Equal(t, x509.ECDSA, cert.PublicKeyAlgorithm) case "rsa": require.Equal(t, x509.RSA, cert.PublicKeyAlgorithm) default: t.Fatal("test doesn't support key type") } } func TestVaultCAProvider_SignLeaf(t *testing.T) { SkipIfVaultNotPresent(t) for _, tc := range KeyTestCases { tc := tc t.Run(tc.Desc, func(t *testing.T) { provider, testVault := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", "PrivateKeyType": tc.KeyType, "PrivateKeyBits": tc.KeyBits, }) defer testVault.Stop() spiffeService := &connect.SpiffeIDService{ Host: "node1", Namespace: "default", Datacenter: "dc1", Service: "foo", } root, err := provider.GenerateRoot() require.NoError(t, err) rootPEM := root.PEM assertCorrectKeyType(t, tc.KeyType, rootPEM) intPEM, err := provider.ActiveIntermediate() require.NoError(t, err) assertCorrectKeyType(t, tc.KeyType, intPEM) // Generate a leaf cert for the service. var firstSerial uint64 { raw, _ := connect.TestCSR(t, spiffeService) csr, err := connect.ParseCSR(raw) require.NoError(t, err) cert, err := provider.Sign(csr) require.NoError(t, err) parsed, err := connect.ParseCert(cert) require.NoError(t, err) require.Equal(t, parsed.URIs[0], spiffeService.URI()) firstSerial = parsed.SerialNumber.Uint64() // Ensure the cert is valid now and expires within the correct limit. now := time.Now() require.True(t, parsed.NotAfter.Sub(now) < time.Hour) require.True(t, parsed.NotBefore.Before(now)) // Make sure we can validate the cert as expected. require.NoError(t, connect.ValidateLeaf(rootPEM, cert, []string{intPEM})) requireTrailingNewline(t, cert) } // Generate a new cert for another service and make sure // the serial number is unique. spiffeService.Service = "bar" { raw, _ := connect.TestCSR(t, spiffeService) csr, err := connect.ParseCSR(raw) require.NoError(t, err) cert, err := provider.Sign(csr) require.NoError(t, err) parsed, err := connect.ParseCert(cert) require.NoError(t, err) require.Equal(t, parsed.URIs[0], spiffeService.URI()) require.NotEqual(t, firstSerial, parsed.SerialNumber.Uint64()) // Ensure the cert is valid now and expires within the correct limit. require.True(t, time.Until(parsed.NotAfter) < time.Hour) require.True(t, parsed.NotBefore.Before(time.Now())) // Make sure we can validate the cert as expected. require.NoError(t, connect.ValidateLeaf(rootPEM, cert, []string{intPEM})) } }) } } func TestVaultCAProvider_CrossSignCA(t *testing.T) { SkipIfVaultNotPresent(t) tests := CASigningKeyTypeCases() for _, tc := range tests { tc := tc t.Run(tc.Desc, func(t *testing.T) { if tc.SigningKeyType != tc.CSRKeyType { // See https://github.com/hashicorp/vault/issues/7709 t.Skip("Vault doesn't support cross-signing different key types yet.") } provider1, testVault1 := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", "PrivateKeyType": tc.SigningKeyType, "PrivateKeyBits": tc.SigningKeyBits, }) defer testVault1.Stop() { root, err := provider1.GenerateRoot() require.NoError(t, err) assertCorrectKeyType(t, tc.SigningKeyType, root.PEM) intPEM, err := provider1.ActiveIntermediate() require.NoError(t, err) assertCorrectKeyType(t, tc.SigningKeyType, intPEM) } provider2, testVault2 := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", "PrivateKeyType": tc.CSRKeyType, "PrivateKeyBits": tc.CSRKeyBits, }) defer testVault2.Stop() { root, err := provider2.GenerateRoot() require.NoError(t, err) assertCorrectKeyType(t, tc.CSRKeyType, root.PEM) intPEM, err := provider2.ActiveIntermediate() require.NoError(t, err) assertCorrectKeyType(t, tc.CSRKeyType, intPEM) } testCrossSignProviders(t, provider1, provider2) }) } } func TestVaultProvider_SignIntermediate(t *testing.T) { SkipIfVaultNotPresent(t) tests := CASigningKeyTypeCases() for _, tc := range tests { tc := tc t.Run(tc.Desc, func(t *testing.T) { provider1, testVault1 := testVaultProviderWithConfig(t, true, map[string]interface{}{ "LeafCertTTL": "1h", "PrivateKeyType": tc.SigningKeyType, "PrivateKeyBits": tc.SigningKeyBits, }) defer testVault1.Stop() provider2, testVault2 := testVaultProviderWithConfig(t, false, map[string]interface{}{ "LeafCertTTL": "1h", "PrivateKeyType": tc.CSRKeyType, "PrivateKeyBits": tc.CSRKeyBits, }) defer testVault2.Stop() testSignIntermediateCrossDC(t, provider1, provider2) }) } } func TestVaultProvider_SignIntermediateConsul(t *testing.T) { SkipIfVaultNotPresent(t) // primary = Vault, secondary = Consul t.Run("pri=vault,sec=consul", func(t *testing.T) { provider1, testVault1 := testVaultProviderWithConfig(t, true, nil) defer testVault1.Stop() conf := testConsulCAConfig() delegate := newMockDelegate(t, conf) provider2 := TestConsulProvider(t, delegate) cfg := testProviderConfig(conf) cfg.IsPrimary = false cfg.Datacenter = "dc2" require.NoError(t, provider2.Configure(cfg)) testSignIntermediateCrossDC(t, provider1, provider2) }) // primary = Consul, secondary = Vault t.Run("pri=consul,sec=vault", func(t *testing.T) { conf := testConsulCAConfig() delegate := newMockDelegate(t, conf) provider1 := TestConsulProvider(t, delegate) require.NoError(t, provider1.Configure(testProviderConfig(conf))) _, err := provider1.GenerateRoot() require.NoError(t, err) // Ensure that we don't configure vault to try and mint leafs that // outlive their CA during the test (which hard fails in vault). intermediateCertTTL := getIntermediateCertTTL(t, conf) leafCertTTL := intermediateCertTTL - 4*time.Hour overrideConf := map[string]interface{}{ "LeafCertTTL": []uint8(leafCertTTL.String()), } provider2, testVault2 := testVaultProviderWithConfig(t, false, overrideConf) defer testVault2.Stop() testSignIntermediateCrossDC(t, provider1, provider2) }) } func TestVaultProvider_Cleanup(t *testing.T) { SkipIfVaultNotPresent(t) testVault, err := runTestVault(t) require.NoError(t, err) testVault.WaitUntilReady(t) t.Run("provider-change", func(t *testing.T) { provider, err := createVaultProvider(t, true, testVault.Addr, testVault.RootToken, nil) require.NoError(t, err) // ensure that the intermediate PKI mount exists mounts, err := provider.client.Sys().ListMounts() require.NoError(t, err) require.Contains(t, mounts, provider.config.IntermediatePKIPath) // call cleanup with a provider change - this should cause removal of the mount require.NoError(t, provider.Cleanup(true, nil)) // verify the mount was removed mounts, err = provider.client.Sys().ListMounts() require.NoError(t, err) require.NotContains(t, mounts, provider.config.IntermediatePKIPath) }) t.Run("pki-path-change", func(t *testing.T) { provider, err := createVaultProvider(t, true, testVault.Addr, testVault.RootToken, nil) require.NoError(t, err) // ensure that the intermediate PKI mount exists mounts, err := provider.client.Sys().ListMounts() require.NoError(t, err) require.Contains(t, mounts, provider.config.IntermediatePKIPath) // call cleanup with an intermediate pki path change - this should cause removal of the mount require.NoError(t, provider.Cleanup(false, map[string]interface{}{ "Address": testVault.Addr, "Token": testVault.RootToken, "RootPKIPath": "pki-root/", // "IntermediatePKIPath": "pki-intermediate2/", // Tests duration parsing after msgpack type mangling during raft apply. "LeafCertTTL": []uint8("72h"), })) // verify the mount was removed mounts, err = provider.client.Sys().ListMounts() require.NoError(t, err) require.NotContains(t, mounts, provider.config.IntermediatePKIPath) }) t.Run("pki-path-unchanged", func(t *testing.T) { provider, err := createVaultProvider(t, true, testVault.Addr, testVault.RootToken, nil) require.NoError(t, err) // ensure that the intermediate PKI mount exists mounts, err := provider.client.Sys().ListMounts() require.NoError(t, err) require.Contains(t, mounts, provider.config.IntermediatePKIPath) // call cleanup with no config changes - this should not cause removal of the intermediate pki path require.NoError(t, provider.Cleanup(false, map[string]interface{}{ "Address": testVault.Addr, "Token": testVault.RootToken, "RootPKIPath": "pki-root/", "IntermediatePKIPath": "pki-intermediate/", // Tests duration parsing after msgpack type mangling during raft apply. "LeafCertTTL": []uint8("72h"), })) // verify the mount was NOT removed mounts, err = provider.client.Sys().ListMounts() require.NoError(t, err) require.Contains(t, mounts, provider.config.IntermediatePKIPath) }) } func TestVaultProvider_ConfigureWithAuthMethod(t *testing.T) { SkipIfVaultNotPresent(t) cases := []struct { authMethodType string configureAuthMethodFunc func(t *testing.T, vaultClient *vaultapi.Client) map[string]interface{} }{ { authMethodType: "userpass", configureAuthMethodFunc: func(t *testing.T, vaultClient *vaultapi.Client) map[string]interface{} { _, err := vaultClient.Logical().Write("/auth/userpass/users/test", map[string]interface{}{"password": "foo", "policies": "admins"}) require.NoError(t, err) return map[string]interface{}{ "Type": "userpass", "Params": map[string]interface{}{ "username": "test", "password": "foo", }, } }, }, { authMethodType: "approle", configureAuthMethodFunc: func(t *testing.T, vaultClient *vaultapi.Client) map[string]interface{} { _, err := vaultClient.Logical().Write("auth/approle/role/my-role", nil) require.NoError(t, err) resp, err := vaultClient.Logical().Read("auth/approle/role/my-role/role-id") require.NoError(t, err) roleID := resp.Data["role_id"] resp, err = vaultClient.Logical().Write("auth/approle/role/my-role/secret-id", nil) require.NoError(t, err) secretID := resp.Data["secret_id"] return map[string]interface{}{ "Type": "approle", "Params": map[string]interface{}{ "role_id": roleID, "secret_id": secretID, }, } }, }, } for _, c := range cases { t.Run(c.authMethodType, func(t *testing.T) { testVault := NewTestVaultServer(t) err := testVault.Client().Sys().EnableAuthWithOptions(c.authMethodType, &vaultapi.EnableAuthOptions{Type: c.authMethodType}) require.NoError(t, err) authMethodConf := c.configureAuthMethodFunc(t, testVault.Client()) conf := map[string]interface{}{ "Address": testVault.Addr, "RootPKIPath": "pki-root/", "IntermediatePKIPath": "pki-intermediate/", "AuthMethod": authMethodConf, } provider := NewVaultProvider(hclog.New(nil)) cfg := ProviderConfig{ ClusterID: connect.TestClusterID, Datacenter: "dc1", IsPrimary: true, RawConfig: conf, } t.Cleanup(provider.Stop) err = provider.Configure(cfg) require.NoError(t, err) require.NotEmpty(t, provider.client.Token()) }) } } func TestVaultProvider_RotateAuthMethodToken(t *testing.T) { SkipIfVaultNotPresent(t) testVault := NewTestVaultServer(t) err := testVault.Client().Sys().EnableAuthWithOptions("approle", &vaultapi.EnableAuthOptions{Type: "approle"}) require.NoError(t, err) _, err = testVault.Client().Logical().Write("auth/approle/role/my-role", map[string]interface{}{"token_ttl": "2s", "token_explicit_max_ttl": "2s"}) require.NoError(t, err) resp, err := testVault.Client().Logical().Read("auth/approle/role/my-role/role-id") require.NoError(t, err) roleID := resp.Data["role_id"] resp, err = testVault.Client().Logical().Write("auth/approle/role/my-role/secret-id", nil) require.NoError(t, err) secretID := resp.Data["secret_id"] conf := map[string]interface{}{ "Address": testVault.Addr, "RootPKIPath": "pki-root/", "IntermediatePKIPath": "pki-intermediate/", "AuthMethod": map[string]interface{}{ "Type": "approle", "Params": map[string]interface{}{ "role_id": roleID, "secret_id": secretID, }, }, } provider := NewVaultProvider(hclog.New(nil)) cfg := ProviderConfig{ ClusterID: connect.TestClusterID, Datacenter: "dc1", IsPrimary: true, RawConfig: conf, } t.Cleanup(provider.Stop) err = provider.Configure(cfg) require.NoError(t, err) token := provider.client.Token() require.NotEmpty(t, token) // Check that the token is rotated after max_ttl time has passed. require.Eventually(t, func() bool { return provider.client.Token() != token }, 10*time.Second, 100*time.Millisecond) } func getIntermediateCertTTL(t *testing.T, caConf *structs.CAConfiguration) time.Duration { t.Helper() require.NotNil(t, caConf) require.NotNil(t, caConf.Config) iface, ok := caConf.Config["IntermediateCertTTL"] require.True(t, ok) ttlBytes, ok := iface.([]uint8) require.True(t, ok) ttlString := string(ttlBytes) dur, err := time.ParseDuration(ttlString) require.NoError(t, err) return dur } func testVaultProviderWithConfig(t *testing.T, isPrimary bool, rawConf map[string]interface{}) (*VaultProvider, *TestVaultServer) { testVault, err := runTestVault(t) if err != nil { t.Fatalf("err: %v", err) } testVault.WaitUntilReady(t) provider, err := createVaultProvider(t, isPrimary, testVault.Addr, testVault.RootToken, rawConf) if err != nil { testVault.Stop() t.Fatalf("err: %v", err) } return provider, testVault } func createVaultProvider(t *testing.T, isPrimary bool, addr, token string, rawConf map[string]interface{}) (*VaultProvider, error) { conf := map[string]interface{}{ "Address": addr, "Token": token, "RootPKIPath": "pki-root/", "IntermediatePKIPath": "pki-intermediate/", // Tests duration parsing after msgpack type mangling during raft apply. "LeafCertTTL": []uint8("72h"), } for k, v := range rawConf { conf[k] = v } provider := NewVaultProvider(hclog.New(nil)) cfg := ProviderConfig{ ClusterID: connect.TestClusterID, Datacenter: "dc1", IsPrimary: true, RawConfig: conf, } if !isPrimary { cfg.IsPrimary = false cfg.Datacenter = "dc2" } t.Cleanup(provider.Stop) require.NoError(t, provider.Configure(cfg)) if isPrimary { _, err := provider.GenerateRoot() require.NoError(t, err) _, err = provider.GenerateIntermediate() require.NoError(t, err) } return provider, nil }