| var assert = require('assert'); |
| var jp = require('../'); |
| var util = require('util'); |
| |
| suite('parse', function() { |
| |
| test('should parse root-only', function() { |
| var path = jp.parse('$'); |
| assert.deepEqual(path, [ { expression: { type: 'root', value: '$' } } ]); |
| }); |
| |
| test('parse path for store', function() { |
| var path = jp.parse('$.store'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'store' } } |
| ]) |
| }); |
| |
| test('parse path for the authors of all books in the store', function() { |
| var path = jp.parse('$.store.book[*].author'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'store' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'wildcard', value: '*' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'author' } } |
| ]) |
| }); |
| |
| test('parse path for all authors', function() { |
| var path = jp.parse('$..author'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'author' } } |
| ]) |
| }); |
| |
| test('parse path for all authors via subscript descendant string literal', function() { |
| var path = jp.parse("$..['author']"); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'subscript', scope: 'descendant', expression: { type: 'string_literal', value: 'author' } } |
| ]) |
| }); |
| |
| test('parse path for all things in store', function() { |
| var path = jp.parse('$.store.*'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'store' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'wildcard', value: '*' } } |
| ]) |
| }); |
| |
| test('parse path for price of everything in the store', function() { |
| var path = jp.parse('$.store..price'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'store' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'price' } } |
| ]) |
| }); |
| |
| test('parse path for the last book in order via expression', function() { |
| var path = jp.parse('$..book[(@.length-1)]'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'script_expression', value: '(@.length-1)' } } |
| ]) |
| }); |
| |
| test('parse path for the first two books via union', function() { |
| var path = jp.parse('$..book[0,1]'); |
| |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'union', value: [ { expression: { type: 'numeric_literal', value: '0' } }, { expression: { type: 'numeric_literal', value: '1' } } ] } } |
| ]) |
| }); |
| |
| test('parse path for the first two books via slice', function() { |
| var path = jp.parse('$..book[0:2]'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'slice', value: '0:2' } } |
| ]) |
| }); |
| |
| test('parse path to filter all books with isbn number', function() { |
| var path = jp.parse('$..book[?(@.isbn)]'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'filter_expression', value: '?(@.isbn)' } } |
| ]) |
| }); |
| |
| test('parse path to filter all books with a price less than 10', function() { |
| var path = jp.parse('$..book[?(@.price<10)]'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'identifier', value: 'book' } }, |
| { operation: 'subscript', scope: 'child', expression: { type: 'filter_expression', value: '?(@.price<10)' } } |
| ]) |
| }); |
| |
| test('parse path to match all elements', function() { |
| var path = jp.parse('$..*'); |
| assert.deepEqual(path, [ |
| { expression: { type: 'root', value: '$' } }, |
| { operation: 'member', scope: 'descendant', expression: { type: 'wildcard', value: '*' } } |
| ]) |
| }); |
| |
| test('parse path with leading member', function() { |
| var path = jp.parse('store'); |
| assert.deepEqual(path, [ |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'store' } } |
| ]) |
| }); |
| |
| test('parse path with leading member and followers', function() { |
| var path = jp.parse('Request.prototype.end'); |
| assert.deepEqual(path, [ |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'Request' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'prototype' } }, |
| { operation: 'member', scope: 'child', expression: { type: 'identifier', value: 'end' } } |
| ]) |
| }); |
| |
| test('parser ast is reinitialized after parse() throws', function() { |
| assert.throws(function() { var path = jp.parse('store.book...') }) |
| var path = jp.parse('$..price'); |
| assert.deepEqual(path, [ |
| { "expression": { "type": "root", "value": "$" } }, |
| { "expression": { "type": "identifier", "value": "price" }, "operation": "member", "scope": "descendant"} |
| ]) |
| }); |
| |
| }); |
| |
| suite('parse-negative', function() { |
| |
| test('parse path with leading member component throws', function() { |
| assert.throws(function(e) { var path = jp.parse('.store') }, /Expecting 'DOLLAR'/) |
| }); |
| |
| test('parse path with leading descendant member throws', function() { |
| assert.throws(function() { var path = jp.parse('..store') }, /Expecting 'DOLLAR'/) |
| }); |
| |
| test('leading script throws', function() { |
| assert.throws(function() { var path = jp.parse('()') }, /Unrecognized text/) |
| }); |
| |
| test('first time friendly error', function() { |
| assert.throws(function() { (new jp.JSONPath).parse('$...') }, /Expecting 'STAR'/) |
| }); |
| |
| }); |