kyoto-client

kt = require '../lib/index' util = require 'util' testCase = require('nodeunit').testCase fs = require 'fs' testDb = "test" alternateDb = "test2" db = new kt.Db testDb db.open('localhost', 1979) dbClear = (callback) -> db.clear (error, output) -> callback() module.exports = 'Cursor with a starting key': testCase setUp: (callback) -> db.clear (error, output) => db.set 'cursor-test', "Cursor\tValue", (error) => db.getCursor 'cursor-test', (error, cursor) => throw error if error? @cursor = cursor callback() tearDown: (callback) -> @cursor.delete -> callback() get: 'returns the key and value': (test) -> test.expect 3 @cursor.get (error, output) -> test.ifError error test.equal output.key.toString('utf8'), "cursor-test" test.equal output.value.toString('utf8'), "Cursor\tValue" test.done() 'handles base64 encoded responses': (test) -> test.expect 2 fs.readFile "#{__dirname}/../doc/output/favicon.ico", (error, data) => test.ifError error # Storing a predompinently binary value triggers a base64 response # from the server. db.set 'test', data, (error) => @cursor.jump 'test', => @cursor.get (error, output) -> # The base64 package returns binary strings when it decodes # convert the source data to the same to make the two values # comparable. dataString = data.toString 'binary' test.equal output.value, dataString test.done() remove: 'removes the record': (test) -> test.expect 2 @cursor.remove (error, output) -> test.ifError error db.get 'cursor-test', (error, value) -> test.ok value == null test.done() each: 'yields records on each iteration': (test) -> test.expect 2 runTest = => results = [] @cursor.jump (error) => @cursor.each (error, output) -> if output.key? results.push [output.key, output.value] else test.ifError error test.deepEqual [ [ '1', 'One' ] [ '2', 'Two' ] [ 'cursor-test', 'Cursor\tValue' ] ], results test.done() db.set '1', 'One', (error, output) -> db.set '2', 'Two', (error, output) -> runTest() 'Cursor without a starting key': testCase setUp: (callback) -> @records = 'first': "Cursor\tValue" 'last': "At the end" db.clear (error, output) => db.setBulk @records, (error) => db.getCursor (error, cursor) => @cursor = cursor callback() tearDown: (callback) -> @cursor.delete -> callback() jump: 'allows traversal from the first record': (test) -> test.expect 2 @cursor.jump (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() 'step goes to the next record': (test) -> test.expect 1 @cursor.jump (error, output) => @cursor.step (error, output) => @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "last" test.done() jumpBack: 'allows traversal from the last record': (test) -> test.expect 2 @cursor.jumpBack (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "last" test.done() 'stepBack goes to the previous record': (test) -> test.expect 1 @cursor.jumpBack (error, output) => @cursor.stepBack (error, output) => @cursor.get (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() setValue: 'sets the value of the current record': (test) -> test.expect 2 @cursor.setValue "New Value", (error, output) => test.ifError error @cursor.getValue (error, output) -> test.equal output.value.toString('utf8'), "New Value" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.setValue "New Value", true, (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() 'accept a Buffer as the value': (test) -> test.expect 2 buffer = new Buffer("Some Value", 'ascii') @cursor.setValue buffer, (error, output) => test.ifError error @cursor.getValue (error, output) -> test.equal output.value.toString('ascii'), "Some Value" test.done() remove: 'removes the record': (test) -> test.expect 2 @cursor.remove (error, output) -> test.ifError error db.get 'cursor-test', (error, value) -> test.ok value == null test.done() getKey: 'returns the key of the current record': (test) -> test.expect 1 @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.getKey true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() getValue: 'returns the value of the current record': (test) -> test.expect 1 @cursor.getValue (error, output) -> test.equal output.value.toString('utf8'), "Cursor\tValue" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.getValue true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() get: 'returns the key and value of the current record': (test) -> test.expect 2 @cursor.get (error, output) -> test.equal output.key.toString('utf8'), "first" test.equal output.value.toString('utf8'), "Cursor\tValue" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.get true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() each: 'yields records on each iteration': (test) -> test.expect 2 runTest = => results = [] @cursor.jump '1', (error) => @cursor.each (error, output) -> if output.key? results.push [output.key, output.value] else test.ifError error test.deepEqual [ [ '1', 'One' ] [ '2', 'Two' ] [ 'first', 'Cursor\tValue' ] [ 'last', 'At the end' ] ], results test.done() db.set '1', 'One', (error, output) -> db.set '2', 'Two', (error, output) -> runTest() 'Cursor for an alternate database': testCase setUp: (callback) -> @records = 'first': "Cursor\tValue" 'last': "At the end" # Clear both databases db.clear (error, output) => console.log "clear default" throw error if error? db.clear {database: alternateDb}, (error, output) => throw error if error? db.setBulk @records, {database: alternateDb}, (error) => throw error if error? db.getCursor null, {database: alternateDb}, (error, cursor) => throw error if error? console.log "getCursor" @cursor = cursor callback() tearDown: (callback) -> @cursor.delete -> callback() jump: 'allows traversal from the first record': (test) -> test.expect 2 @cursor.jump (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() 'step goes to the next record': (test) -> test.expect 1 @cursor.jump (error, output) => @cursor.step (error, output) => @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "last" test.done() jumpBack: 'allows traversal from the last record': (test) -> test.expect 2 @cursor.jumpBack (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "last" test.done() 'stepBack goes to the previous record': (test) -> test.expect 1 @cursor.jumpBack (error, output) => @cursor.stepBack (error, output) => @cursor.get (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() setValue: 'sets the value of the current record': (test) -> test.expect 2 @cursor.setValue "New Value", (error, output) => test.ifError error @cursor.getValue (error, output) -> test.equal output.value.toString('utf8'), "New Value" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.setValue "New Value", true, (error, output) => test.ifError error @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() 'accept a Buffer as the value': (test) -> test.expect 2 buffer = new Buffer("Some Value", 'ascii') @cursor.setValue buffer, (error, output) => test.ifError error @cursor.getValue (error, output) -> test.equal output.value.toString('ascii'), "Some Value" test.done() remove: 'removes the record': (test) -> test.expect 2 @cursor.remove (error, output) -> test.ifError error db.get 'cursor-test', (error, value) -> test.ok value == null test.done() getKey: 'returns the key of the current record': (test) -> test.expect 1 @cursor.getKey (error, output) -> test.equal output.key.toString('utf8'), "first" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.getKey true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() getValue: 'returns the value of the current record': (test) -> test.expect 1 @cursor.getValue (error, output) -> test.equal output.value.toString('utf8'), "Cursor\tValue" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.getValue true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() get: 'returns the key and value of the current record': (test) -> test.expect 2 @cursor.get (error, output) -> test.equal output.key.toString('utf8'), "first" test.equal output.value.toString('utf8'), "Cursor\tValue" test.done() 'allows stepping to the next record': (test) -> test.expect 2 @cursor.get true, (error, output) => test.ifError error @cursor.get (error, output) -> test.equal output.key.toString('utf8'), 'last' test.done() each: 'yields records on each iteration': (test) -> test.expect 2 runTest = => results = [] @cursor.jump '1', {database: alternateDb}, (error) => @cursor.each (error, output) -> if output.key? results.push [output.key, output.value] else test.ifError error test.deepEqual [ [ '1', 'One' ] [ '2', 'Two' ] [ 'first', 'Cursor\tValue' ] [ 'last', 'At the end' ] ], results test.done() db.set '1', 'One', {database: alternateDb}, (error, output) -> db.set '2', 'Two', {database: alternateDb}, (error, output) -> runTest()