@mysql/xdevapi/test/unit/Protocol/Wrappers/Messages/Sql/StmtExecute.js

MySQL Connector/Node.js - A Node.js driver for MySQL using the X Protocol and X DevAPI.

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 * published by the Free Software Foundation.
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'use strict';

/* eslint-env node, mocha */

const expect = require('chai').expect;
const td = require('testdouble');

// subject under test needs to be reloaded with replacement fakes
let stmtExecute = require('../../../../../../lib/Protocol/Wrappers/Messages/Sql/StmtExecute');

describe('Mysqlx.Sql.StmtExecute wrapper', () => {
    let SqlStub, any, bytes, list, serializable, wraps;

    beforeEach('create fakes', () => {
        SqlStub = td.replace('../../../../../../lib/Protocol/Stubs/mysqlx_sql_pb');
        any = td.replace('../../../../../../lib/Protocol/Wrappers/Messages/Datatypes/Any');
        bytes = td.replace('../../../../../../lib/Protocol/Wrappers/ScalarValues/bytes');
        list = td.replace('../../../../../../lib/Protocol/Wrappers/Traits/List');
        serializable = td.replace('../../../../../../lib/Protocol/Wrappers/Traits/Serializable');
        wraps = td.replace('../../../../../../lib/Protocol/Wrappers/Traits/Wraps');
        stmtExecute = require('../../../../../../lib/Protocol/Wrappers/Messages/Sql/StmtExecute');
    });

    afterEach('reset fakes', () => {
        td.reset();
    });

    context('class methods', () => {
        context('create()', () => {
            it('returns a Mysqlx.Sql.StmtExecute wrapper instance', () => {
                const proto = new SqlStub.StmtExecute();
                const statement = { getArgs: td.function(), getNamespace: td.function(), getSQL: td.function() };

                td.when(wraps(proto)).thenReturn({ valueOf: () => 'foo' });

                td.when(statement.getNamespace()).thenReturn('bar');

                td.when(statement.getSQL()).thenReturn('s_baz');
                td.when(bytes.create(Buffer.from('s_baz'))).thenReturn({ valueOf: () => 'baz' });

                td.when(statement.getArgs()).thenReturn(['s_qux', 's_quux']);
                td.when(any.create('s_qux')).thenReturn({ valueOf: () => 'qux' });
                td.when(any.create('s_quux')).thenReturn({ valueOf: () => 'quux' });

                expect(stmtExecute.create(statement).valueOf()).to.equal('foo');
                expect(td.explain(proto.setNamespace).callCount).to.equal(1);
                expect(td.explain(proto.setNamespace).calls[0].args[0]).to.equal('bar');
                expect(td.explain(proto.setStmt).callCount).to.equal(1);
                expect(td.explain(proto.setStmt).calls[0].args[0]).to.equal('baz');
                expect(td.explain(proto.setArgsList).callCount).to.equal(1);
                expect(td.explain(proto.setArgsList).calls[0].args[0]).to.deep.equal(['qux', 'quux']);
            });
        });
    });

    context('instance methods', () => {
        context('serialize()', () => {
            it('returns a raw network buffer of the underlying protobuf message', () => {
                const proto = new SqlStub.StmtExecute();

                td.when(serializable(proto)).thenReturn({ serialize: () => 'foo' });

                expect(stmtExecute(proto).serialize()).to.equal('foo');
            });
        });

        context('toJSON()', () => {
            it('returns a textual representation of a Mysqlx.Sql.StmtExecute message', () => {
                const proto = new SqlStub.StmtExecute();

                td.when(proto.getNamespace()).thenReturn('foo');

                td.when(proto.getStmt()).thenReturn('p_bar');
                td.when(bytes('p_bar')).thenReturn({ toString: () => 'bar' });

                td.when(proto.getArgsList()).thenReturn(['p_baz', 'p_qux']);
                td.when(any('p_baz')).thenReturn('a_baz');
                td.when(any('p_qux')).thenReturn('a_qux');
                td.when(list(['a_baz', 'a_qux'])).thenReturn({ toJSON: () => ['baz', 'qux'] });

                td.when(proto.getCompactMetadata()).thenReturn('quux');

                expect(stmtExecute(proto).toJSON()).to.deep.equal({ namespace: 'foo', stmt: 'bar', args: ['baz', 'qux'], compact_metadata: 'quux' });
            });
        });

        context('valueOf()', () => {
            it('returns the underlying protobuf stub instance', () => {
                const proto = new SqlStub.StmtExecute();

                td.when(wraps(proto)).thenReturn({ valueOf: () => 'foo' });

                expect(stmtExecute(proto).valueOf()).to.equal('foo');
            });
        });
    });
});