# Dex Quickstart Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

    void testNullInputs() {
        assertDoesNotThrow(() -> {
            SpnegoException ex1 = new SpnegoException((String) null);
            assertNotNull(ex1);
            assertNull(ex1.getMessage());
            assertNull(ex1.getCause());
        });

        assertDoesNotThrow(() -> {
            SpnegoException ex2 = new SpnegoException("msg", null);

    void testDcerpcExceptionIntegration() {
        // Test that DcerpcException can be created and implements DcerpcError
        DcerpcException ex1 = new DcerpcException("Test error", null);
        assertTrue(ex1 instanceof DcerpcError, "DcerpcException should implement DcerpcError");

        // Test that DcerpcException can be created with string messages

        byte[] buffer = new byte[256];
        SMBUtil.writeInt2(0, buffer, 0);

        SMBProtocolDecodingException ex1 = assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));
        assertEquals("Structure size != 4", ex1.getMessage());

        // Test maximum 2-byte value (65535)
        SMBUtil.writeInt2(65535, buffer, 0);

        // invalidate
        h.markClosed();

        SmbException ex1 = assertThrows(SmbException.class, h::getFid);
        assertEquals("Descriptor is no longer valid", ex1.getMessage());
        SmbException ex2 = assertThrows(SmbException.class, h::getFileId);
        assertEquals("Descriptor is no longer valid", ex2.getMessage());
    }

            }
        };

        SmbResourceLocatorImpl loc = new SmbResourceLocatorImpl(ctx, smbUrl("smb://server/share/"));
        SmbException ex1 = assertThrows(SmbException.class, () -> c.connectWrapException(loc));
        assertTrue(ex1.getMessage().contains("Failed to connect to server"));

        SmbTreeConnection c2 = new SmbTreeConnection(ctx) {
            @Override

        assertSame(out1, out2, "Output stream should be cached");

        // Close and verify subsequent calls throw
        handle.close();
        CIFSException ex1 = assertThrows(CIFSException.class, handle::getInput, "getInput after close must throw");
        assertTrue(ex1.getMessage().contains("Already closed"));
        CIFSException ex2 = assertThrows(CIFSException.class, handle::getOutput, "getOutput after close must throw");

| [**WebIdentity**](https://github.com/minio/minio/blob/master/docs/sts/web-identity.md) | Let users request temporary credentials using any OpenID(OIDC) compatible web identity providers such as KeyCloak, Dex, Facebook, Google etc. |

type OpenIDClientAppParams struct {
	ClientID, ClientSecret, ProviderURL, RedirectURL string
}

// MockOpenIDTestUserInteraction - tries to login to dex using provided credentials.
// It performs the user's browser interaction to login and retrieves the auth
// code from dex and exchanges it for a JWT.
func MockOpenIDTestUserInteraction(ctx context.Context, pro OpenIDClientAppParams, username, password string) (string, error) {

}

var testAppParams = OpenIDClientAppParams{
	ClientID:     "minio-client-app",
	ClientSecret: "minio-client-app-secret",
	ProviderURL:  "http://127.0.0.1:5556/dex",
	RedirectURL:  "http://127.0.0.1:10000/oauth_callback",
}

const (
	EnvTestOpenIDServer  = "_MINIO_OPENID_TEST_SERVER"
	EnvTestOpenIDServer2 = "_MINIO_OPENID_TEST_SERVER_2"
)