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liza/test/server/dapi/TokenedDataApiTest.ts

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/**
* Test DataAPI backed by tokens for logging and precedence
*
* Copyright (C) 2010-2019 R-T Specialty, LLC.
*
* This file is part of liza.
*
* liza is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import { TokenedDataApi as Sut } from "../../../src/server/dapi/TokenedDataApi";
import { DataApi, DataApiInput, DataApiResult } from "../../../src/dapi/DataApi";
import { TokenStore } from "../../../src/server/token/store/TokenStore";
import {
Token,
TokenId,
TokenNamespace,
TokenState,
TokenStateDoneable,
} from "../../../src/server/token/Token";
import { hasContext } from "../../../src/error/ContextError";
import { expect } from 'chai';
describe( 'TokenedDataApi', () =>
{
const expected_ns = 'foo_ns';
( <[string, boolean, ( e: Error|null ) => void][]>[
[
"creates token and returns data if last_created",
true,
e => expect( e ).to.equal( null ),
],
[
"creates token and does not callback if not last_created",
false,
e =>
{
expect( e ).to.be.instanceof( Error );
// this awkwardness can be mitigated in TS 3.7
// (see https://github.com/microsoft/TypeScript/pull/32695)
if ( e instanceof Error )
{
expect( e.message ).to.contain( "superceded" );
expect( hasContext( e ) ).to.be.true;
if ( hasContext( e ) )
{
expect( e.context.id ).to.equal( expected_ns );
}
}
},
],
] ).forEach( ( [ label, last_created, expected_err ] ) => it( label, done =>
{
const expected_data = { given: "data" };
const dapi_ret_data = [ { return: "data" } ];
const stub_tok: Token<TokenState.ACTIVE> =
createStubToken( last_created );
let tok_completed = false;
const mock_tstore = new class implements TokenStore
{
lookupToken()
{
return Promise.reject( Error( "not used" ) );
}
createToken()
{
return Promise.resolve( stub_tok );
}
completeToken(
given_tok: Token<TokenStateDoneable>,
given_data: string,
)
{
expect( given_tok ).to.equal( stub_tok );
expect( given_data ).to.equal(
JSON.stringify( dapi_ret_data )
);
const ret = Object.create( stub_tok );
ret.state = TokenState.DONE;
tok_completed = true;
return Promise.resolve( ret );
}
acceptToken()
{
return Promise.reject( Error( "not used" ) );
}
killToken()
{
return Promise.reject( Error( "not used" ) );
}
}();
const mock_dapi = new class implements DataApi
{
request(
given_data: DataApiInput,
callback: NodeCallback<DataApiResult>,
given_id: string,
): this
{
expect( given_data ).to.equal( expected_data );
expect( given_id ).to.equal( expected_ns );
callback( null, dapi_ret_data );
return this;
}
};
const ctor = ( ns:TokenNamespace ) =>
{
expect( ns ).to.equal( expected_ns );
return mock_tstore;
};
const callback: NodeCallback<DataApiResult> = ( e, data ) =>
{
expect( tok_completed ).to.be.true;
expected_err( e );
expect( data ).to.equal(
( last_created ) ? dapi_ret_data : null
);
done();
};
new Sut( mock_dapi, ctor )
.request( expected_data, callback, expected_ns );
} ) );
it( "propagates dapi request errors", done =>
{
const expected_err = Error( "test dapi error" );
const stub_tok: Token<TokenState.ACTIVE> =
createStubToken( true );
const mock_tstore = new class implements TokenStore
{
lookupToken()
{
return Promise.reject( Error( "not used" ) );
}
createToken()
{
return Promise.resolve( stub_tok );
}
completeToken()
{
return Promise.reject( Error( "not used" ) );
}
acceptToken()
{
return Promise.reject( Error( "not used" ) );
}
killToken()
{
return Promise.reject( Error( "not used" ) );
}
}();
const mock_dapi = new class implements DataApi
{
request(
_: any,
callback: NodeCallback<DataApiResult>,
)
{
callback( expected_err, null );
return this;
}
};
const callback: NodeCallback<DataApiResult> = ( e, data ) =>
{
expect( data ).to.equal( null );
expect( e ).to.equal( expected_err );
done();
};
new Sut( mock_dapi, () => mock_tstore )
.request( {}, callback, expected_ns );
} );
} );
function createStubToken( last_created: boolean ): Token<TokenState.ACTIVE>
{
return {
id: <TokenId>'dummy-id',
state: TokenState.ACTIVE,
timestamp: <UnixTimestamp>0,
data: "",
last_mismatch: false,
last_created: last_created,
};
}