Fix tests in TestServerSupportedGrants for client credentials

Signed-off-by: Rui Yang <ruiya@vmware.com>

Author: Rui Yang

server/server_test.go

@@ -1745,25 +1745,25 @@ func TestServerSupportedGrants(t *testing.T) {
 		{
 			name:      "Simple",
 			config:    func(c *Config) {},
-			resGrants: []string{grantTypeAuthorizationCode, grantTypeRefreshToken, grantTypeDeviceCode},
+			resGrants: []string{grantTypeAuthorizationCode, grantTypeClientCredentials, grantTypeRefreshToken, grantTypeDeviceCode},
 		},
 		{
 			name:      "With password connector",
 			config:    func(c *Config) { c.PasswordConnector = "local" },
-			resGrants: []string{grantTypeAuthorizationCode, grantTypePassword, grantTypeRefreshToken, grantTypeDeviceCode},
+			resGrants: []string{grantTypeAuthorizationCode, grantTypeClientCredentials, grantTypePassword, grantTypeRefreshToken, grantTypeDeviceCode},
 		},
 		{
 			name:      "With token response",
 			config:    func(c *Config) { c.SupportedResponseTypes = append(c.SupportedResponseTypes, responseTypeToken) },
-			resGrants: []string{grantTypeAuthorizationCode, grantTypeImplicit, grantTypeRefreshToken, grantTypeDeviceCode},
+			resGrants: []string{grantTypeAuthorizationCode, grantTypeClientCredentials, grantTypeImplicit, grantTypeRefreshToken, grantTypeDeviceCode},
 		},
 		{
 			name: "All",
 			config: func(c *Config) {
 				c.PasswordConnector = "local"
 				c.SupportedResponseTypes = append(c.SupportedResponseTypes, responseTypeToken)
 			},
-			resGrants: []string{grantTypeAuthorizationCode, grantTypeImplicit, grantTypePassword, grantTypeRefreshToken, grantTypeDeviceCode},
+			resGrants: []string{grantTypeAuthorizationCode, grantTypeClientCredentials, grantTypeImplicit, grantTypePassword, grantTypeRefreshToken, grantTypeDeviceCode},
 		},
 	}