node-odata-parser/test/parser.specs.js at 83d1faaba6ed36227494d0058949b774dca7d7bb · auth0/node-odata-parser · GitHub

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var assert = require('assert');
var parser = require("../lib");

describe('odata.parser grammar', function () {

    it('should parse $top and return the value', function () {

        var ast = parser.parse('$top=40');

        assert.equal(ast.$top, 40);
    });

    it('should parse two params', function () {

        var ast = parser.parse('$top=4&$skip=5');

        assert.equal(ast.$top, 4);
        assert.equal(ast.$skip, 5);
    });


    it('should parse three params', function () {

        var ast = parser.parse('$top=4&$skip=5&$select=Rating');

        assert.equal(ast.$top, 4);
        assert.equal(ast.$skip, 5);
        assert.equal(ast.$select[0], "Rating");
    });

    it('should parse string params', function () {

        var ast = parser.parse('$select=Rating');

        assert.equal(ast.$select[0], 'Rating');
    });

    it('should accept * in $select', function () {

        var ast = parser.parse('$select=*');

        assert.equal(ast.$select[0], '*');
    });

    it('should accept * and , and / in $select', function () {

        var ast = parser.parse('$select=*,Category/Name');

        assert.equal(ast.$select[0], '*');
        assert.equal(ast.$select[1], 'Category/Name');
    });

    it('should accept more than two fields', function () {

        var ast = parser.parse('$select=Rating, Name,LastName');

        assert.equal(ast.$select[0], 'Rating');
        assert.equal(ast.$select[1], 'Name');
        assert.equal(ast.$select[2], 'LastName');
    });

    // This select parameter is not currently supported.
    it('should accept * after . in $select', function () {

        var ast = parser.parse('$select=DemoService.*');

        assert.equal(ast.$select[0], 'DemoService.*');
    });

    it('should parse order by', function () {

        var ast = parser.parse('$orderby=ReleaseDate desc, Rating');

        assert.equal(ast.$orderby[0].ReleaseDate, 'desc');
        assert.equal(ast.$orderby[1].Rating, 'asc');

    });

    it('should parse $filter', function () {

        var ast = parser.parse("$filter=Name eq 'Jef'");

        assert.equal(ast.$filter.type, "eq");
        assert.equal(ast.$filter.left.type, "property");
        assert.equal(ast.$filter.left.name, "Name");
        assert.equal(ast.$filter.right.type, "literal");
        assert.equal(ast.$filter.right.value, "Jef");
    });

    it('should parse multiple conditions in a $filter', function () {

        var ast = parser.parse("$filter=Name eq 'John' and LastName lt 'Doe'");

        assert.equal(ast.$filter.type, "and");
        assert.equal(ast.$filter.left.type, "eq");
        assert.equal(ast.$filter.left.left.type, "property");
        assert.equal(ast.$filter.left.left.name, "Name");
        assert.equal(ast.$filter.left.right.type, "literal");
        assert.equal(ast.$filter.left.right.value, "John");
        assert.equal(ast.$filter.right.type, "lt");
        assert.equal(ast.$filter.right.left.type, "property");
        assert.equal(ast.$filter.right.left.name, "LastName");
        assert.equal(ast.$filter.right.right.type, "literal");
        assert.equal(ast.$filter.right.right.value, "Doe");
    });

    it('should parse substringof $filter', function () {

        var ast = parser.parse("$filter=substringof('nginx', Data)");

        assert.equal(ast.$filter.type, "functioncall");
        assert.equal(ast.$filter.func, "substringof");

        assert.equal(ast.$filter.args[0].type, "literal");
        assert.equal(ast.$filter.args[0].value, "nginx");

        assert.equal(ast.$filter.args[1].type, "property");
        assert.equal(ast.$filter.args[1].name, "Data");

    });

    it('should parse substringof $filter with empty string', function () {

        var ast = parser.parse("$filter=substringof('', Data)");

        assert.equal(ast.$filter.args[0].type, "literal");
        assert.equal(ast.$filter.args[0].value, "");

    });

    it('should parse substringof eq true in $filter', function () {

        var ast = parser.parse("$filter=substringof('nginx', Data) eq true");

        assert.equal(ast.$filter.type, "eq");


        assert.equal(ast.$filter.left.type, "functioncall");
        assert.equal(ast.$filter.left.func, "substringof");
        assert.equal(ast.$filter.left.args[0].type, "literal");
        assert.equal(ast.$filter.left.args[0].value, "nginx");
        assert.equal(ast.$filter.left.args[1].type, "property");
        assert.equal(ast.$filter.left.args[1].name, "Data");

        assert.equal(ast.$filter.right.type, "literal");
        assert.equal(ast.$filter.right.value, true);
    });

    it('should parse startswith $filter', function () {

        var ast = parser.parse("$filter=startswith('nginx', Data)");

        assert.equal(ast.$filter.type, "functioncall");
        assert.equal(ast.$filter.func, "startswith");

        assert.equal(ast.$filter.args[0].type, "literal");
        assert.equal(ast.$filter.args[0].value, "nginx");

        assert.equal(ast.$filter.args[1].type, "property");
        assert.equal(ast.$filter.args[1].name, "Data");

    });

    it('should return an error if invalid value', function() {

        var ast = parser.parse("$top=foo");

        assert.equal(ast.error, "invalid $top parameter");
    });


    it('should convert dates to javascript Date', function () {
        var ast = parser.parse("$top=2&$filter=Date gt datetime'2012-09-27T21:12:59'");
        assert.ok(ast.$filter.right.value instanceof Date);
    });

    it('should parse numbers okay', function(){
        var ast = parser.parse('$filter=status eq 35');
        assert.equal(ast.$filter.right.value, 35);
    });

    it('should parse larger digit numbers okay', function(){
        var ast = parser.parse('$filter=status eq 67823456');
        assert.equal(ast.$filter.right.value, 67823456);
    });

    it('should parse rational numbers okay', function(){
        var ast = parser.parse('$filter=status gt 43.5');
        assert.equal(ast.$filter.right.value, 43.5, 0.001);
    });

    it('should parse negative numbers okay', function(){
        var ast = parser.parse('$filter=status eq -3');
        assert.equal(ast.$filter.right.value, -3);
    });

    it('should parse $expand and return an array of identifier paths', function () {
        var ast = parser.parse('$expand=Category,Products/Suppliers');
        assert.equal(ast.$expand[0], 'Category');
        assert.equal(ast.$expand[1], 'Products/Suppliers');
    });

    // it('xxxxx', function () {
    //     var ast = parser.parse("$top=2&$filter=Date gt datetime'2012-09-27T21:12:59'");

    //     console.log(JSON.stringify(ast, 0, 2));
    // });
});