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718 lines
27 KiB
718 lines
27 KiB
/* eslint-env mocha */
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const Index = require('../lib/indexes')
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const chai = require('chai')
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const { assert } = chai
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chai.should()
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describe('Indexes', function () {
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describe('Insertion', function () {
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it('Can insert pointers to documents in the index correctly when they have the field', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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// The underlying BST now has 3 nodes which contain the docs where it's expected
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [{ a: 5, tf: 'hello' }])
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assert.deepStrictEqual(idx.tree.search('world'), [{ a: 8, tf: 'world' }])
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assert.deepStrictEqual(idx.tree.search('bloup'), [{ a: 2, tf: 'bloup' }])
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// The nodes contain pointers to the actual documents
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idx.tree.search('world')[0].should.equal(doc2)
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idx.tree.search('bloup')[0].a = 42
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doc3.a.should.equal(42)
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})
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it('Inserting twice for the same fieldName in a unique index will result in an error thrown', function () {
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const idx = new Index({ fieldName: 'tf', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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idx.insert(doc1)
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idx.tree.getNumberOfKeys().should.equal(1);
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(function () { idx.insert(doc1) }).should.throw()
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})
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it('Inserting twice for a fieldName the docs dont have with a unique index results in an error thrown', function () {
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const idx = new Index({ fieldName: 'nope', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 5, tf: 'world' }
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idx.insert(doc1)
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idx.tree.getNumberOfKeys().should.equal(1);
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(function () { idx.insert(doc2) }).should.throw()
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})
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it('Inserting twice for a fieldName the docs dont have with a unique and sparse index will not throw, since the docs will be non indexed', function () {
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const idx = new Index({ fieldName: 'nope', unique: true, sparse: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 5, tf: 'world' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.tree.getNumberOfKeys().should.equal(0) // Docs are not indexed
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})
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it('Works with dot notation', function () {
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const idx = new Index({ fieldName: 'tf.nested' })
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const doc1 = { a: 5, tf: { nested: 'hello' } }
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const doc2 = { a: 8, tf: { nested: 'world', additional: true } }
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const doc3 = { a: 2, tf: { nested: 'bloup', age: 42 } }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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// The underlying BST now has 3 nodes which contain the docs where it's expected
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [doc1])
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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assert.deepStrictEqual(idx.tree.search('bloup'), [doc3])
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// The nodes contain pointers to the actual documents
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idx.tree.search('bloup')[0].a = 42
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doc3.a.should.equal(42)
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})
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it('Can insert an array of documents', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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idx.insert([doc1, doc2, doc3])
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [doc1])
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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assert.deepStrictEqual(idx.tree.search('bloup'), [doc3])
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})
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it('When inserting an array of elements, if an error is thrown all inserts need to be rolled back', function () {
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const idx = new Index({ fieldName: 'tf', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc2b = { a: 84, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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try {
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idx.insert([doc1, doc2, doc2b, doc3])
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} catch (e) {
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e.errorType.should.equal('uniqueViolated')
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}
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idx.tree.getNumberOfKeys().should.equal(0)
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assert.deepStrictEqual(idx.tree.search('hello'), [])
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assert.deepStrictEqual(idx.tree.search('world'), [])
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assert.deepStrictEqual(idx.tree.search('bloup'), [])
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})
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describe('Array fields', function () {
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it('Inserts one entry per array element in the index', function () {
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const obj = { tf: ['aa', 'bb'], really: 'yeah' }
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const obj2 = { tf: 'normal', yes: 'indeed' }
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const idx = new Index({ fieldName: 'tf' })
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idx.insert(obj)
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idx.getAll().length.should.equal(2)
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idx.getAll()[0].should.equal(obj)
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idx.getAll()[1].should.equal(obj)
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idx.insert(obj2)
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idx.getAll().length.should.equal(3)
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})
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it('Inserts one entry per array element in the index, type-checked', function () {
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const obj = { tf: ['42', 42, new Date(42), 42], really: 'yeah' }
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const idx = new Index({ fieldName: 'tf' })
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idx.insert(obj)
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idx.getAll().length.should.equal(3)
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idx.getAll()[0].should.equal(obj)
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idx.getAll()[1].should.equal(obj)
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idx.getAll()[2].should.equal(obj)
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})
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it('Inserts one entry per unique array element in the index, the unique constraint only holds across documents', function () {
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const obj = { tf: ['aa', 'aa'], really: 'yeah' }
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const obj2 = { tf: ['cc', 'yy', 'cc'], yes: 'indeed' }
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const idx = new Index({ fieldName: 'tf', unique: true })
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idx.insert(obj)
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idx.getAll().length.should.equal(1)
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idx.getAll()[0].should.equal(obj)
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idx.insert(obj2)
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idx.getAll().length.should.equal(3)
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})
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it('The unique constraint holds across documents', function () {
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const obj = { tf: ['aa', 'aa'], really: 'yeah' }
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const obj2 = { tf: ['cc', 'aa', 'cc'], yes: 'indeed' }
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const idx = new Index({ fieldName: 'tf', unique: true })
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idx.insert(obj)
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idx.getAll().length.should.equal(1)
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idx.getAll()[0].should.equal(obj);
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(function () { idx.insert(obj2) }).should.throw()
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})
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it('When removing a document, remove it from the index at all unique array elements', function () {
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const obj = { tf: ['aa', 'aa'], really: 'yeah' }
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const obj2 = { tf: ['cc', 'aa', 'cc'], yes: 'indeed' }
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const idx = new Index({ fieldName: 'tf' })
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idx.insert(obj)
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idx.insert(obj2)
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idx.getMatching('aa').length.should.equal(2)
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idx.getMatching('aa').indexOf(obj).should.not.equal(-1)
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idx.getMatching('aa').indexOf(obj2).should.not.equal(-1)
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idx.getMatching('cc').length.should.equal(1)
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idx.remove(obj2)
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idx.getMatching('aa').length.should.equal(1)
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idx.getMatching('aa').indexOf(obj).should.not.equal(-1)
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idx.getMatching('aa').indexOf(obj2).should.equal(-1)
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idx.getMatching('cc').length.should.equal(0)
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})
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it('If a unique constraint is violated when inserting an array key, roll back all inserts before the key', function () {
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const obj = { tf: ['aa', 'bb'], really: 'yeah' }
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const obj2 = { tf: ['cc', 'dd', 'aa', 'ee'], yes: 'indeed' }
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const idx = new Index({ fieldName: 'tf', unique: true })
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idx.insert(obj)
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idx.getAll().length.should.equal(2)
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idx.getMatching('aa').length.should.equal(1)
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idx.getMatching('bb').length.should.equal(1)
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idx.getMatching('cc').length.should.equal(0)
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idx.getMatching('dd').length.should.equal(0)
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idx.getMatching('ee').length.should.equal(0);
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(function () { idx.insert(obj2) }).should.throw()
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idx.getAll().length.should.equal(2)
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idx.getMatching('aa').length.should.equal(1)
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idx.getMatching('bb').length.should.equal(1)
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idx.getMatching('cc').length.should.equal(0)
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idx.getMatching('dd').length.should.equal(0)
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idx.getMatching('ee').length.should.equal(0)
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})
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}) // ==== End of 'Array fields' ==== //
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}) // ==== End of 'Insertion' ==== //
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describe('Removal', function () {
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it('Can remove pointers from the index, even when multiple documents have the same key', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const doc4 = { a: 23, tf: 'world' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.insert(doc4)
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.remove(doc1)
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idx.tree.getNumberOfKeys().should.equal(2)
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idx.tree.search('hello').length.should.equal(0)
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idx.remove(doc2)
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idx.tree.getNumberOfKeys().should.equal(2)
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idx.tree.search('world').length.should.equal(1)
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idx.tree.search('world')[0].should.equal(doc4)
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})
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it('If we have a sparse index, removing a non indexed doc has no effect', function () {
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const idx = new Index({ fieldName: 'nope', sparse: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 5, tf: 'world' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.tree.getNumberOfKeys().should.equal(0)
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idx.remove(doc1)
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idx.tree.getNumberOfKeys().should.equal(0)
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})
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it('Works with dot notation', function () {
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const idx = new Index({ fieldName: 'tf.nested' })
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const doc1 = { a: 5, tf: { nested: 'hello' } }
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const doc2 = { a: 8, tf: { nested: 'world', additional: true } }
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const doc3 = { a: 2, tf: { nested: 'bloup', age: 42 } }
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const doc4 = { a: 2, tf: { nested: 'world', fruits: ['apple', 'carrot'] } }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.insert(doc4)
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.remove(doc1)
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idx.tree.getNumberOfKeys().should.equal(2)
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idx.tree.search('hello').length.should.equal(0)
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idx.remove(doc2)
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idx.tree.getNumberOfKeys().should.equal(2)
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idx.tree.search('world').length.should.equal(1)
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idx.tree.search('world')[0].should.equal(doc4)
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})
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it('Can remove an array of documents', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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idx.insert([doc1, doc2, doc3])
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.remove([doc1, doc3])
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idx.tree.getNumberOfKeys().should.equal(1)
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assert.deepStrictEqual(idx.tree.search('hello'), [])
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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assert.deepStrictEqual(idx.tree.search('bloup'), [])
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})
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}) // ==== End of 'Removal' ==== //
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describe('Update', function () {
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it('Can update a document whose key did or didnt change', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const doc4 = { a: 23, tf: 'world' }
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const doc5 = { a: 1, tf: 'changed' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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idx.update(doc2, doc4)
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('world'), [doc4])
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idx.update(doc1, doc5)
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [])
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assert.deepStrictEqual(idx.tree.search('changed'), [doc5])
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})
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it('If a simple update violates a unique constraint, changes are rolled back and an error thrown', function () {
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const idx = new Index({ fieldName: 'tf', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const bad = { a: 23, tf: 'world' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [doc1])
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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assert.deepStrictEqual(idx.tree.search('bloup'), [doc3])
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try {
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idx.update(doc3, bad)
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} catch (e) {
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e.errorType.should.equal('uniqueViolated')
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}
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// No change
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('hello'), [doc1])
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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assert.deepStrictEqual(idx.tree.search('bloup'), [doc3])
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})
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it('Can update an array of documents', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const doc1b = { a: 23, tf: 'world' }
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const doc2b = { a: 1, tf: 'changed' }
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const doc3b = { a: 44, tf: 'bloup' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.update([{ oldDoc: doc1, newDoc: doc1b }, { oldDoc: doc2, newDoc: doc2b }, { oldDoc: doc3, newDoc: doc3b }])
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.getMatching('world').length.should.equal(1)
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idx.getMatching('world')[0].should.equal(doc1b)
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idx.getMatching('changed').length.should.equal(1)
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idx.getMatching('changed')[0].should.equal(doc2b)
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idx.getMatching('bloup').length.should.equal(1)
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idx.getMatching('bloup')[0].should.equal(doc3b)
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})
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it('If a unique constraint is violated during an array-update, all changes are rolled back and an error thrown', function () {
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const idx = new Index({ fieldName: 'tf', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const doc1b = { a: 23, tf: 'changed' }
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const doc2b = { a: 1, tf: 'changed' }
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const doc3b = { a: 44, tf: 'alsochanged' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.tree.getNumberOfKeys().should.equal(3)
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try {
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idx.update([{ oldDoc: doc1, newDoc: doc1b }, { oldDoc: doc2, newDoc: doc2b }, { oldDoc: doc3, newDoc: doc3b }])
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} catch (e) {
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e.errorType.should.equal('uniqueViolated')
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}
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.getMatching('hello').length.should.equal(1)
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idx.getMatching('hello')[0].should.equal(doc1)
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idx.getMatching('world').length.should.equal(1)
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idx.getMatching('world')[0].should.equal(doc2)
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idx.getMatching('bloup').length.should.equal(1)
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idx.getMatching('bloup')[0].should.equal(doc3)
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try {
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idx.update([{ oldDoc: doc1, newDoc: doc1b }, { oldDoc: doc2, newDoc: doc2b }, { oldDoc: doc3, newDoc: doc3b }])
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} catch (e) {
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e.errorType.should.equal('uniqueViolated')
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}
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idx.tree.getNumberOfKeys().should.equal(3)
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idx.getMatching('hello').length.should.equal(1)
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idx.getMatching('hello')[0].should.equal(doc1)
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idx.getMatching('world').length.should.equal(1)
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idx.getMatching('world')[0].should.equal(doc2)
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idx.getMatching('bloup').length.should.equal(1)
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idx.getMatching('bloup')[0].should.equal(doc3)
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})
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it('If an update doesnt change a document, the unique constraint is not violated', function () {
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const idx = new Index({ fieldName: 'tf', unique: true })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
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const noChange = { a: 8, tf: 'world' }
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idx.insert(doc1)
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idx.insert(doc2)
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idx.insert(doc3)
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('world'), [doc2])
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idx.update(doc2, noChange) // No error thrown
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idx.tree.getNumberOfKeys().should.equal(3)
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assert.deepStrictEqual(idx.tree.search('world'), [noChange])
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})
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it('Can revert simple and batch updates', function () {
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const idx = new Index({ fieldName: 'tf' })
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const doc1 = { a: 5, tf: 'hello' }
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const doc2 = { a: 8, tf: 'world' }
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const doc3 = { a: 2, tf: 'bloup' }
|
|
const doc1b = { a: 23, tf: 'world' }
|
|
const doc2b = { a: 1, tf: 'changed' }
|
|
const doc3b = { a: 44, tf: 'bloup' }
|
|
const batchUpdate = [{ oldDoc: doc1, newDoc: doc1b }, { oldDoc: doc2, newDoc: doc2b }, {
|
|
oldDoc: doc3,
|
|
newDoc: doc3b
|
|
}]
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
|
|
idx.update(batchUpdate)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('world')[0].should.equal(doc1b)
|
|
idx.getMatching('changed').length.should.equal(1)
|
|
idx.getMatching('changed')[0].should.equal(doc2b)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
idx.getMatching('bloup')[0].should.equal(doc3b)
|
|
|
|
idx.revertUpdate(batchUpdate)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('hello')[0].should.equal(doc1)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('world')[0].should.equal(doc2)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
idx.getMatching('bloup')[0].should.equal(doc3)
|
|
|
|
// Now a simple update
|
|
idx.update(doc2, doc2b)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('hello')[0].should.equal(doc1)
|
|
idx.getMatching('changed').length.should.equal(1)
|
|
idx.getMatching('changed')[0].should.equal(doc2b)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
idx.getMatching('bloup')[0].should.equal(doc3)
|
|
|
|
idx.revertUpdate(doc2, doc2b)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('hello')[0].should.equal(doc1)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('world')[0].should.equal(doc2)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
idx.getMatching('bloup')[0].should.equal(doc3)
|
|
})
|
|
}) // ==== End of 'Update' ==== //
|
|
|
|
describe('Get matching documents', function () {
|
|
it('Get all documents where fieldName is equal to the given value, or an empty array if no match', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
const doc4 = { a: 23, tf: 'world' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
idx.insert(doc4)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc2, doc4])
|
|
assert.deepStrictEqual(idx.getMatching('nope'), [])
|
|
})
|
|
|
|
it('Can get all documents for a given key in a unique index', function () {
|
|
const idx = new Index({ fieldName: 'tf', unique: true })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc2])
|
|
assert.deepStrictEqual(idx.getMatching('nope'), [])
|
|
})
|
|
|
|
it('Can get all documents for which a field is undefined', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 2, nottf: 'bloup' }
|
|
const doc3 = { a: 8, tf: 'world' }
|
|
const doc4 = { a: 7, nottf: 'yes' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [])
|
|
assert.deepStrictEqual(idx.getMatching('hello'), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('yes'), [])
|
|
assert.deepStrictEqual(idx.getMatching(undefined), [doc2])
|
|
|
|
idx.insert(doc4)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [])
|
|
assert.deepStrictEqual(idx.getMatching('hello'), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('yes'), [])
|
|
assert.deepStrictEqual(idx.getMatching(undefined), [doc2, doc4])
|
|
})
|
|
|
|
it('Can get all documents for which a field is null', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 2, tf: null }
|
|
const doc3 = { a: 8, tf: 'world' }
|
|
const doc4 = { a: 7, tf: null }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [])
|
|
assert.deepStrictEqual(idx.getMatching('hello'), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('yes'), [])
|
|
assert.deepStrictEqual(idx.getMatching(null), [doc2])
|
|
|
|
idx.insert(doc4)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [])
|
|
assert.deepStrictEqual(idx.getMatching('hello'), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('yes'), [])
|
|
assert.deepStrictEqual(idx.getMatching(null), [doc2, doc4])
|
|
})
|
|
|
|
it('Can get all documents for a given key in a sparse index, but not unindexed docs (= field undefined)', function () {
|
|
const idx = new Index({ fieldName: 'tf', sparse: true })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 2, nottf: 'bloup' }
|
|
const doc3 = { a: 8, tf: 'world' }
|
|
const doc4 = { a: 7, nottf: 'yes' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
idx.insert(doc4)
|
|
|
|
assert.deepStrictEqual(idx.getMatching('bloup'), [])
|
|
assert.deepStrictEqual(idx.getMatching('hello'), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching('world'), [doc3])
|
|
assert.deepStrictEqual(idx.getMatching('yes'), [])
|
|
assert.deepStrictEqual(idx.getMatching(undefined), [])
|
|
})
|
|
|
|
it('Can get all documents whose key is in an array of keys', function () {
|
|
// For this test only we have to use objects with _ids as the array version of getMatching
|
|
// relies on the _id property being set, otherwise we have to use a quadratic algorithm
|
|
// or a fingerprinting algorithm, both solutions too complicated and slow given that live nedb
|
|
// indexes documents with _id always set
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello', _id: '1' }
|
|
const doc2 = { a: 2, tf: 'bloup', _id: '2' }
|
|
const doc3 = { a: 8, tf: 'world', _id: '3' }
|
|
const doc4 = { a: 7, tf: 'yes', _id: '4' }
|
|
const doc5 = { a: 7, tf: 'yes', _id: '5' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
idx.insert(doc4)
|
|
idx.insert(doc5)
|
|
|
|
assert.deepStrictEqual(idx.getMatching([]), [])
|
|
assert.deepStrictEqual(idx.getMatching(['bloup']), [doc2])
|
|
assert.deepStrictEqual(idx.getMatching(['bloup', 'yes']), [doc2, doc4, doc5])
|
|
assert.deepStrictEqual(idx.getMatching(['hello', 'no']), [doc1])
|
|
assert.deepStrictEqual(idx.getMatching(['nope', 'no']), [])
|
|
})
|
|
|
|
it('Can get all documents whose key is between certain bounds', function () {
|
|
const idx = new Index({ fieldName: 'a' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 2, tf: 'bloup' }
|
|
const doc3 = { a: 8, tf: 'world' }
|
|
const doc4 = { a: 7, tf: 'yes' }
|
|
const doc5 = { a: 10, tf: 'yes' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
idx.insert(doc4)
|
|
idx.insert(doc5)
|
|
|
|
assert.deepStrictEqual(idx.getBetweenBounds({ $lt: 10, $gte: 5 }), [doc1, doc4, doc3])
|
|
assert.deepStrictEqual(idx.getBetweenBounds({ $lte: 8 }), [doc2, doc1, doc4, doc3])
|
|
assert.deepStrictEqual(idx.getBetweenBounds({ $gt: 7 }), [doc3, doc5])
|
|
})
|
|
}) // ==== End of 'Get matching documents' ==== //
|
|
|
|
describe('Resetting', function () {
|
|
it('Can reset an index without any new data, the index will be empty afterwards', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
|
|
idx.reset()
|
|
idx.tree.getNumberOfKeys().should.equal(0)
|
|
idx.getMatching('hello').length.should.equal(0)
|
|
idx.getMatching('world').length.should.equal(0)
|
|
idx.getMatching('bloup').length.should.equal(0)
|
|
})
|
|
|
|
it('Can reset an index and initialize it with one document', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
const newDoc = { a: 555, tf: 'new' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
|
|
idx.reset(newDoc)
|
|
idx.tree.getNumberOfKeys().should.equal(1)
|
|
idx.getMatching('hello').length.should.equal(0)
|
|
idx.getMatching('world').length.should.equal(0)
|
|
idx.getMatching('bloup').length.should.equal(0)
|
|
idx.getMatching('new')[0].a.should.equal(555)
|
|
})
|
|
|
|
it('Can reset an index and initialize it with an array of documents', function () {
|
|
const idx = new Index({ fieldName: 'tf' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
const newDocs = [{ a: 555, tf: 'new' }, { a: 666, tf: 'again' }]
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
idx.tree.getNumberOfKeys().should.equal(3)
|
|
idx.getMatching('hello').length.should.equal(1)
|
|
idx.getMatching('world').length.should.equal(1)
|
|
idx.getMatching('bloup').length.should.equal(1)
|
|
|
|
idx.reset(newDocs)
|
|
idx.tree.getNumberOfKeys().should.equal(2)
|
|
idx.getMatching('hello').length.should.equal(0)
|
|
idx.getMatching('world').length.should.equal(0)
|
|
idx.getMatching('bloup').length.should.equal(0)
|
|
idx.getMatching('new')[0].a.should.equal(555)
|
|
idx.getMatching('again')[0].a.should.equal(666)
|
|
})
|
|
}) // ==== End of 'Resetting' ==== //
|
|
|
|
it('Get all elements in the index', function () {
|
|
const idx = new Index({ fieldName: 'a' })
|
|
const doc1 = { a: 5, tf: 'hello' }
|
|
const doc2 = { a: 8, tf: 'world' }
|
|
const doc3 = { a: 2, tf: 'bloup' }
|
|
|
|
idx.insert(doc1)
|
|
idx.insert(doc2)
|
|
idx.insert(doc3)
|
|
|
|
assert.deepStrictEqual(idx.getAll(), [{ a: 2, tf: 'bloup' }, { a: 5, tf: 'hello' }, { a: 8, tf: 'world' }])
|
|
})
|
|
})
|
|
|