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How to use flush method in yandex-tank

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datasource.js

Source:datasource.js

...80  it('should be able to retrieve data', function () {81    var ds = datasource.create(scope, scope.loadOptions);82    // load data83    $rootScope.$digest();84    $timeout.flush();85    $httpBackend.flush();86    $rootScope.$digest();87    expect(ds.data).toEqual(sampleData);88  });89  it('should cancel data request if scope is destroyed', function () {90    scope.loadOptions.autoLoad = false;91    var ds = datasource.create(scope, scope.loadOptions);92    // should not do anything until there is a request to cancel93    scope.$broadcast('$destroy');94    $rootScope.$digest();95    expect($httpBackend.flush).toThrow();96    ds.loadData();97    // load data98    $rootScope.$digest();99    $timeout.flush();100    scope.$broadcast('$destroy');101    $rootScope.$digest();102    expect($httpBackend.flush).toThrow();103    expect(ds.data).toEqual([]);104    scope.$broadcast('$destroy');105    $rootScope.$digest();106  });107  it('should be able to retrieve data asyncronously', function () {108    scope.loadOptions = {109      request: { url: '/sampleAsyncData' }110    };111    var ds = datasource.create(scope, scope.loadOptions);112    // load data113    $rootScope.$digest();114    $timeout.flush();115    $httpBackend.flush();116    $rootScope.$digest();117    $timeout.flush();118    $httpBackend.flush();119    ds.pause();120    $rootScope.$digest();121    $timeout.flush();122    $httpBackend.flush();123    // first two records should be in the data at this point124    expect(ds.data).toEqual([sampleData[0], sampleData[1]]);125    // puase will have occured before the first records data is moved to the view126    expect(ds.viewData).toEqual([]);127    ds.resume();128    $rootScope.$digest();129    $timeout.flush();130    $httpBackend.flush();131    // data should be moved to view at this point132    expect(ds.viewData).toEqual([sampleData[0], sampleData[1]]);133    // data should be one step ahead of view this cycle (won't be moved to view till next timeout)134    expect(ds.data).toEqual([sampleData[0], sampleData[1], sampleData[2]]);135    $rootScope.$digest();136    $timeout.flush();137    expect(ds.viewData).toEqual([sampleData[0], sampleData[1], sampleData[2]]);138    $httpBackend.flush();139    $timeout.flush();140    expect(ds.data).toEqual(sampleData);141    expect(ds.viewData).toEqual(sampleData);142  });143  it('should be able to pause and resume async data loading', function () {144    scope.loadOptions = {145      request: { url: '/sampleAsyncData' }146    };147    var ds = datasource.create(scope, scope.loadOptions);148    // load data149    $rootScope.$digest();150    $timeout.flush();151    $httpBackend.flush();152    $rootScope.$digest();153    $timeout.flush();154    $httpBackend.flush();155    $rootScope.$digest();156    $timeout.flush();157    $httpBackend.flush();158    // first two rows should be loaded + 3rd row pending159    $rootScope.$digest();160    $timeout.flush();161    ds.pause();162    expect(ds.viewData).toEqual( [ sampleData[0], sampleData[1] ] );163    $httpBackend.flush();164    $rootScope.$digest();165    $timeout.flush();166    $httpBackend.flush();167    expect(ds.viewData).toEqual( [ sampleData[0], sampleData[1] ] );168    ds.resume();169    $rootScope.$digest();170    $timeout.flush();171    expect(ds.viewData).toEqual(sampleData);172  });173  it('should update the data even if no records are returned (and thus no notify events)', function () {174    var ds = datasource.create(scope, scope.loadOptions);175    // load data176    $rootScope.$digest();177    $timeout.flush();178    $httpBackend.flush();179    expect(ds.data).toEqual(sampleData);180    scope.loadOptions.request.url = '/noData';181    $rootScope.$digest();182    $timeout.flush();183    $httpBackend.flush();184    expect(ds.data).toEqual([]);185  });186  it('should set loading flag correctly', function () {187    var ds = datasource.create(scope, scope.loadOptions);188    expect(ds.bLoading).toBe(false);189    $rootScope.$digest();190    $timeout.flush();191    expect(ds.bLoading).toBe(true);192    // complete loading data193    $httpBackend.flush();194    $timeout.flush();195    expect(ds.bLoading).toBe(false);196    expect(ds.data).toEqual(sampleData);197  });198  it('should be able to filter the data', function(){199    scope.loadOptions.filter = scope.filter;200    var ds = datasource.create(scope, scope.loadOptions);201    scope.filter.values.name = 'bob';202    // load data203    $rootScope.$digest();204    $timeout.flush();205    $httpBackend.flush();206    // process filter207    $timeout.flush();208    expect(ds.viewData).toEqual([209      { name: 'bob smith', someId: 7, otherField: 'x'},210      { name: 'bob jones', someId: 9, otherField: 'a'}211    ]);212  });213  it('should only filter the view data when the datasource is paused', function(){214    scope.loadOptions.filter = scope.filter;215    var ds = datasource.create(scope, scope.loadOptions);216    scope.filter.values.name = 'bob';217    // load data218    $rootScope.$digest();219    $timeout.flush();220    $httpBackend.flush();221    // process filter222    $timeout.flush();223    expect(ds.viewData).toEqual([224      { name: 'bob smith', someId: 7, otherField: 'x'},225      { name: 'bob jones', someId: 9, otherField: 'a'}226    ]);227    ds.pause();228    scope.filter.values.name = 'i';229    $rootScope.$digest();230    $timeout.flush();231    expect(ds.viewData).toEqual([232      { name: 'bob smith', someId: 7, otherField: 'x'}233    ]);234  });235  it('should filter results if the filter data changes', function(){236    scope.loadOptions.filter = scope.filter;237    var ds = datasource.create(scope, scope.loadOptions);238    scope.filter.values.name = 'bob';239    // load data240    $rootScope.$digest();241    $timeout.flush();242    $httpBackend.flush();243    // process filter244    $timeout.flush();245    expect(ds.viewData).toEqual([246      { name: 'bob smith', someId: 7, otherField: 'x'},247      { name: 'bob jones', someId: 9, otherField: 'a'}248    ]);249    scope.filter.values.name = 'mary';250    $rootScope.$digest();251    $timeout.flush();252    expect(ds.viewData).toEqual([253      { name : 'elsbith maryface', someId : 5, otherField : 'b' }254    ]);255  });256  it('should filter results only if the optional filter valid expression evaluates to true', function(){257    scope.loadOptions.filter = scope.filter;258    scope.loadOptions.filterValid = 'isFilterValid';259    var ds = datasource.create(scope, scope.loadOptions);260    scope.filter.values.name = 'bob';261    scope.isFilterValid = true;262    $rootScope.$digest();263    $timeout.flush();264    $httpBackend.flush();265    $timeout.flush();266    // expect initial data to be loaded. this is the only load request...267    expect(ds.viewData).toEqual([268      { name: 'bob smith', someId: 7, otherField: 'x'},269      { name: 'bob jones', someId: 9, otherField: 'a'}270    ]);271    scope.isFilterValid = false;272    scope.filter.values.name = 'mary';273    $rootScope.$digest();274    expect(ds.viewData).toEqual([275      { name: 'bob smith', someId: 7, otherField: 'x'},276      { name: 'bob jones', someId: 9, otherField: 'a'}277    ]);278    scope.isFilterValid = true;279    $rootScope.$digest();280    $timeout.flush();281    expect(ds.viewData).toEqual([282      { name : 'elsbith maryface', someId : 5, otherField : 'b' }283    ]);284  });285  it('should request new data if filter options/params change', function(){286    scope.loadOptions.filter = scope.filter;287    scope.loadOptions.request.url =  '/simple/2';288    scope.loadOptions.request.params = { foo: 'bar' };289    var ds = datasource.create(scope, scope.loadOptions);290    expect(ds.data).toEqual([]);291    // load data292    $rootScope.$digest();293    $timeout.flush();294    $httpBackend.flush();295    expect(ds.data).toEqual(data2);296    scope.loadOptions.request.url = '/simple';297    delete scope.loadOptions.request.params;298    $rootScope.$digest();299    $timeout.flush();300    $httpBackend.flush();301    expect(ds.data).toEqual(sampleData);302  });303  it('should not request new data if filter options/params change and update is set to manual request only', function(){304    scope.loadOptions.autoLoad = false;305    // this will trigger param change refresh306    scope.loadOptions.request.params = {id: 37};307    // this will trigger request option change request + filter okay request308    var ds = datasource.create(scope, scope.loadOptions);309    // load data310    $rootScope.$digest();311    // should not be any data loads triggered312    expect($timeout.flush).toThrow();313    expect($httpBackend.flush).toThrow();314    // should not have loaded any data yet...315    expect(ds.data).toEqual([]);316    // remove param as it isn't configured to return data317    delete scope.loadOptions.request.params;318    scope.$digest();319    // param change shouldn't of trigger a load320    expect($timeout.flush).toThrow();321    expect($httpBackend.flush).toThrow();322    // manually load data...323    ds.loadData();324    $rootScope.$digest();325    $timeout.flush();326    $httpBackend.flush();327    // should now have the data328    expect(ds.data).toEqual(sampleData);329  });330  it('should not request data until the optional requestValidExpr is truthy', function(){331    scope.bValid = false;332    scope.loadOptions.request.url =  '/simple/2';333    scope.loadOptions.request.params = { foo: 'bar'};334    scope.loadOptions.requestValid = 'bValid';335    var ds = datasource.create(scope, scope.loadOptions);336    // load data337    $rootScope.$digest();338    expect($httpBackend.flush).toThrow();339    scope.loadOptions.request.params.foo = 'bar2';340    $rootScope.$digest();341    scope.loadOptions.request.url =  '/simple';342    delete scope.loadOptions.request.params;343    $rootScope.$digest();344    $timeout.flush();345    expect($httpBackend.flush).toThrow();346    ds.loadData();347    $timeout.flush();348    $rootScope.$digest();349    expect($httpBackend.flush).toThrow();350    scope.bValid = true;351    $rootScope.$digest();352    $timeout.flush();353    $httpBackend.flush();354    expect(ds.data).toEqual(sampleData);355  });356  it('should cancel the first request if another request is made before it completes', function(){357    scope.loadOptions.request.url =  '/simple/2';358    scope.loadOptions.request.params = {359      foo: 'bar'360    };361    scope.ds = datasource.create(scope, scope.loadOptions);362    var updateCount = 0;363    var data = [];364    scope.$watchCollection('ds.data', function(newData){365      if (!angular.equals(newData,data)) {366        updateCount++;367      }368    });369    // load data370    $rootScope.$digest();371    $timeout.flush();372    scope.loadOptions.request.url =  '/simple';373    delete scope.loadOptions.request.params;374    $rootScope.$digest();375    $timeout.flush();376    $httpBackend.flush();377    // check data is correct378    expect(scope.ds.data).toEqual(sampleData);379    // check two requests madce380    expect($http.calls.count()).toBe(2);381    // check data was only updated once382    expect(updateCount).toBe(1);383    // check nothing outstanding happens in afterEach()384  });385  it('should not start the second request if another identical request is made before it completes', function(){386    var updateCount = 0;387    var data = [];388    scope.$watchCollection('ds.data', function(newData){389      if (!angular.equals(newData,data)) {390        updateCount++;391      }392    });393    scope.ds = datasource.create(scope, scope.loadOptions);394    // load data395    $rootScope.$digest();396    $timeout.flush();397    scope.ds.loadData();398    $rootScope.$digest();399    $timeout.flush();400    $httpBackend.flush();401    // check data is correct402    expect(scope.ds.data).toEqual(sampleData);403    // check only one request was made404    expect($http.calls.count()).toBe(1);405    // check data was only updated once406    expect(updateCount).toBe(1);407    // check nothing outstanding happens in afterEach()408  });409  it('should be able to paginate the data', function(){410    scope.loadOptions.pagination = {411      perPage: 2412    };413    var ds = datasource.create(scope, scope.loadOptions);414    // load data415    $rootScope.$digest();416    $timeout.flush();417    $httpBackend.flush();418    $timeout.flush();419    expect(ds.data).toEqual(sampleData);420    // digest here to make sure filter/watcher is setup before data loaded421    ds.setPage(2);422    $rootScope.$digest();423    expect(ds.pageData).toEqual([424      { name: 'bob jones', someId: 9, otherField: 'a'},425      { name: 'elsbith maryface', someId: 5, otherField: 'b'}426    ]);427    expect(ds.pages).toBe(2);428    expect(ds.currentPage).toBe(2);429    // change the page430    ds.setPage(1);431    $rootScope.$digest();432    expect(ds.pageData).toEqual([433      { name: 'bob smith', someId: 7, otherField: 'x'},434      { name: 'dave ham', someId: 8, otherField: 'y'}435    ]);436  });437  it('should keep the current page within the bounds', function(){438    scope.loadOptions.pagination = {439      perPage: 2440    };441    var ds = datasource.create(scope, scope.loadOptions);442    // load data443    $rootScope.$digest();444    // should set current page to 0 initially as no data will be loaded445    expect(ds.currentPage).toBe(0);446    $timeout.flush(); // get data timeout447    $httpBackend.flush();448    $timeout.flush(); // apply filter timeout449    expect(ds.viewData).toEqual(sampleData);450    // set current page too high451    ds.setPage(4);452    $rootScope.$digest();453    expect(ds.currentPage).toBe(2);454    // set current page too low455    ds.setPage(-3);456    $rootScope.$digest();457    expect(ds.currentPage).toBe(1);458  });459  it('should sort the data if a sort function is provided', function(){460    var ds = datasource.create(scope, scope.loadOptions);461    ds.sortFunction = function(a) {462      return (a.name.toLowerCase());463    };464    // load data465    $rootScope.$digest();466    $timeout.flush();467    $httpBackend.flush();468    expect(ds.data).toEqual([469      { name: 'bob jones', someId: 9, otherField: 'a'},470      { name: 'bob smith', someId: 7, otherField: 'x'},471      { name: 'dave ham', someId: 8, otherField: 'y'},472      { name: 'elsbith maryface', someId: 5, otherField: 'b'}473    ]);474  });475  it('should reverse the order of the data if datasource.sortOrder is DESC', function(){476    var ds = datasource.create(scope, scope.loadOptions);477    ds.sortFunction = function(a) {478      return (a.name.toLowerCase());479    };480    // load data481    $rootScope.$digest();482    $timeout.flush();483    $httpBackend.flush();484    expect(ds.data).toEqual([485      { name: 'bob jones', someId: 9, otherField: 'a'},486      { name: 'bob smith', someId: 7, otherField: 'x'},487      { name: 'dave ham', someId: 8, otherField: 'y'},488      { name: 'elsbith maryface', someId: 5, otherField: 'b'}489    ]);490    ds.sortOrder = 'DESC';491    // load data492    $rootScope.$digest();493    expect(ds.data).toEqual([494      { name: 'elsbith maryface', someId: 5, otherField: 'b'},495      { name: 'dave ham', someId: 8, otherField: 'y'},496      { name: 'bob smith', someId: 7, otherField: 'x'},497      { name: 'bob jones', someId: 9, otherField: 'a'}498    ]);499  });500  it('should resort the data if the sort function changes', function(){501    var ds = datasource.create(scope, scope.loadOptions);502    ds.sortFunction = function(a) {503      return (a.name.toLowerCase());504    };505    ds.loadData();506    // load data507    $rootScope.$digest();508    $timeout.flush();509    $httpBackend.flush();510    expect(ds.data).toEqual([511      { name: 'bob jones', someId: 9, otherField: 'a'},512      { name: 'bob smith', someId: 7, otherField: 'x'},513      { name: 'dave ham', someId: 8, otherField: 'y'},514      { name: 'elsbith maryface', someId: 5, otherField: 'b'}515    ]);516    ds.sortFunction = function(a) {517      return (a.someId);518    };519    $rootScope.$digest();520    $timeout.flush();521    // this should not have caused a new request to the backend522    expect($httpBackend.flush).toThrow();523    expect(ds.data).toEqual([524      { name: 'elsbith maryface', someId: 5, otherField: 'b'},525      { name: 'bob smith', someId: 7, otherField: 'x'},526      { name: 'dave ham', someId: 8, otherField: 'y'},527      { name: 'bob jones', someId: 9, otherField: 'a'}528    ]);529  });530    // sampleData = [531    //   { name: 'bob smith', someId: 7, otherField: 'x'},532    //   { name: 'dave ham', someId: 8, otherField: 'y'},533    //   { name: 'bob jones', someId: 9, otherField: 'a'},534    //   { name: 'elsbith maryface', someId: 5, otherField: 'b'}535    // ];536  it('should be able to sort the data during async data loading', function () {537    scope.loadOptions = {538      request: { url: '/sampleAsyncData' }539    };540    var ds = datasource.create(scope, scope.loadOptions);541    ds.sortFunction = function(a) {542      return (a.name.toLowerCase());543    };544    // load data545    $rootScope.$digest();546    $timeout.flush();547    $httpBackend.flush();548    $rootScope.$digest();549    $timeout.flush();550    $httpBackend.flush();551    ds.sortOrder = 'DESC';552    $rootScope.$digest();553    $timeout.flush();554    $httpBackend.flush();555    // first two rows should be loaded + 3rd row pending556    $rootScope.$digest();557    $timeout.flush();558    ds.pause();559    expect(ds.viewData).toEqual( [ sampleData[1], sampleData[0] ] );560    ds.sortFunction = function(a) {561      return (a.someId);562    };563    $rootScope.$digest();564    expect(ds.viewData).toEqual( [ sampleData[1], sampleData[0] ] );565    ds.sortOrder = 'ASC';566    ds.sortFunction = function(a) {567      return (a.name.toLowerCase());568    };569    expect(ds.viewData).toEqual( [ sampleData[1], sampleData[0] ] );570    $httpBackend.flush();571    $rootScope.$digest();572    ds.resume();573    $timeout.flush();574    $httpBackend.flush();575    expect(ds.viewData).toEqual( [ sampleData[2], sampleData[0],  sampleData[1] ] );576    $rootScope.$digest();577    $timeout.flush();578    expect(ds.viewData).toEqual( [ sampleData[2], sampleData[0],  sampleData[1], sampleData[3] ] );579  });580  it('should be able to execute a function after data is loaded', function () {581    var complete = false;582    scope.loadOptions.onLoadComplete = function(){583      complete = true;584    };585    var ds = datasource.create(scope, scope.loadOptions);586    // load data587    $rootScope.$digest();588    $timeout.flush();589    $httpBackend.flush();590    // data isn't filtered/paged until next digest cycle, then function should be executed591    $timeout.flush();592    expect(ds.data).toEqual(sampleData);593    expect(complete).toEqual(true);594  });595  describe('trigger row reload function', function(){596    var ds;597    beforeEach(function(){598      scope.loadOptions.requestRowFunction = jasmine.createSpy('request row function');599      ds = datasource.create(scope, scope.loadOptions);600      // make the names sorted by alpha601      ds.sortFunction = function(a) {602        return (a.name.toLowerCase());603      };604      // load data605      $rootScope.$digest();606      $timeout.flush();607      $httpBackend.flush();608      $timeout.flush();609    });610    it('should be able to reload a single row and reapply sort/pagination', function () {611      scope.loadOptions.requestRowFunction.and.callFake(function(row){612        row.name = 'a ' + row.name + ' the first of his name';613        return row;614      });615      var match = angular.copy(sampleData[1]);616      ds.triggerRowReload(match);617      // digest + flush timeout to allow new sorting618      $rootScope.$digest();619      $timeout.flush();620      expect(scope.loadOptions.requestRowFunction).toHaveBeenCalledWith(match);621      expect(ds.viewData[0].name).toBe('a ' + sampleData[1].name + ' the first of his name');622      expect(ds.viewData[2].name).toBe('bob smith');623    });624    it('should be able to add a new row to the dataset if reload is triggered on an unknown row', function () {625      scope.loadOptions.requestRowFunction.and.callFake(_.identity);626      var match = { name: 'aardvarky albertson', someId: 11, otherField: 'f'};627      ds.triggerRowReload(match);628      // digest + flush timeout to allow new sorting629      $rootScope.$digest();630      $timeout.flush();631      expect(ds.viewData[0]).toBe(match);632    });633    it('should not add a new row to the dataset if reload is triggered on an unknown row but returns no data', function () {634      expect(ds.data.length).toBe(4);635      scope.loadOptions.requestRowFunction.and.callFake(angular.noop);636      var match = { name: 'aardvarky albertson', someId: 11, otherField: 'f'};637      ds.triggerRowReload(match);638      // digest + flush timeout to allow new sorting639      $rootScope.$digest();640      $timeout.flush();641      // should not be any new rowsz642      expect(ds.data.length).toBe(4);643    });644    it('should be able to reload a single row and reapply sort/pagination with new data provided to triggerReload', function () {645      var match = angular.copy(sampleData[1]);646      ds.triggerRowReload(match, {name: 'a ' + sampleData[1].name + ' the first of his name'});647      // digest + flush timeout to allow new sorting648      $rootScope.$digest();649      $timeout.flush();650      expect(ds.viewData[0].name).toBe('a ' + sampleData[1].name + ' the first of his name');651      expect(ds.viewData[2].name).toBe('bob smith');652    });653    it('should delete row if the reloaded data is null/undefined', function () {654      scope.loadOptions.requestRowFunction.and.callFake(function(){655        return null;656      });657      var match = angular.copy(sampleData[1]);658      expect(ds.data.length).toBe(4);659      expect(_.findWhere(ds.data, match)).toEqual(sampleData[1]);660      ds.triggerRowReload(match);661      // digest + flush timeout to allow new sorting662      $rootScope.$digest();663      $timeout.flush();664      expect(ds.data.length).toBe(3);665      expect(_.findWhere(ds.data, match)).toBe(undefined);666    });667    it('should delete row if the reloaded data is null/undefined with data provided to triggerReload', function () {668      var match = angular.copy(sampleData[1]);669      expect(ds.data.length).toBe(4);670      expect(_.findWhere(ds.data, match)).toEqual(sampleData[1]);671      ds.triggerRowReload(match, undefined);672      // digest + flush timeout to allow new sorting673      $rootScope.$digest();674      $timeout.flush();675      expect(ds.data.length).toBe(3);676      expect(_.findWhere(ds.data, match)).toBe(undefined);677    });678});...

parse-chunked.js

Source:parse-chunked.js

...126            }127        }128        return fragment;129    }130    flush(chunk, start, end) {131        let fragment = chunk.slice(start, end);132        // Save position correction an error in JSON.parse() if any133        this.jsonParseOffset = this.chunkOffset + start;134        // Prepend pending chunk if any135        if (this.pendingChunk !== null) {136            fragment = this.pendingChunk + fragment;137            this.jsonParseOffset -= this.pendingChunk.length;138            this.pendingChunk = null;139        }140        if (this.flushDepth === this.lastFlushDepth) {141            // Depth didn't changed, so it's a root value or entry/element set142            if (this.flushDepth > 0) {143                this.parseAndAppend(this.prepareAddition(fragment), true);144            } else {145                // That's an entire value on a top level146                this.value = JSON.parse(fragment);147                this.valueStack = {148                    value: this.value,149                    prev: null150                };151            }152        } else if (this.flushDepth > this.lastFlushDepth) {153            // Add missed closing brackets/parentheses154            for (let i = this.flushDepth - 1; i >= this.lastFlushDepth; i--) {155                fragment += this.stack[i] === STACK_OBJECT ? '}' : ']';156            }157            if (this.lastFlushDepth === 0) {158                // That's a root value159                this.value = JSON.parse(fragment);160                this.valueStack = {161                    value: this.value,162                    prev: null163                };164            } else {165                this.parseAndAppend(this.prepareAddition(fragment), true);166            }167            // Move down to the depths to the last object/array, which is current now168            for (let i = this.lastFlushDepth || 1; i < this.flushDepth; i++) {169                let value = this.valueStack.value;170                if (this.stack[i - 1] === STACK_OBJECT) {171                    // find last entry172                    let key;173                    // eslint-disable-next-line curly174                    for (key in value);175                    value = value[key];176                } else {177                    // last element178                    value = value[value.length - 1];179                }180                this.valueStack = {181                    value,182                    prev: this.valueStack183                };184            }185        } else /* this.flushDepth < this.lastFlushDepth */ {186            fragment = this.prepareAddition(fragment);187            // Add missed opening brackets/parentheses188            for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {189                this.jsonParseOffset--;190                fragment = (this.stack[i] === STACK_OBJECT ? '{' : '[') + fragment;191            }192            this.parseAndAppend(fragment, false);193            for (let i = this.lastFlushDepth - 1; i >= this.flushDepth; i--) {194                this.valueStack = this.valueStack.prev;195            }196        }197        this.lastFlushDepth = this.flushDepth;198    }199    push(chunk) {200        if (typeof chunk !== 'string') {201            // Suppose chunk is Buffer or Uint8Array202            // Prepend uncompleted byte sequence if any203            if (this.pendingByteSeq !== null) {204                const origRawChunk = chunk;205                chunk = new Uint8Array(this.pendingByteSeq.length + origRawChunk.length);206                chunk.set(this.pendingByteSeq);207                chunk.set(origRawChunk, this.pendingByteSeq.length);208                this.pendingByteSeq = null;209            }210            // In case Buffer/Uint8Array, an input is encoded in UTF8211            // Seek for parts of uncompleted UTF8 symbol on the ending212            // This makes sense only if we expect more chunks and last char is not multi-bytes213            if (chunk[chunk.length - 1] > 127) {214                for (let seqLength = 0; seqLength < chunk.length; seqLength++) {215                    const byte = chunk[chunk.length - 1 - seqLength];216                    // 10xxxxxx - 2nd, 3rd or 4th byte217                    // 110xxxxx â first byte of 2-byte sequence218                    // 1110xxxx - first byte of 3-byte sequence219                    // 11110xxx - first byte of 4-byte sequence220                    if (byte >> 6 === 3) {221                        seqLength++;222                        // If the sequence is really incomplete, then preserve it223                        // for the future chunk and cut off it from the current chunk224                        if ((seqLength !== 4 && byte >> 3 === 0b11110) ||225                            (seqLength !== 3 && byte >> 4 === 0b1110) ||226                            (seqLength !== 2 && byte >> 5 === 0b110)) {227                            this.pendingByteSeq = chunk.slice(chunk.length - seqLength);228                            chunk = chunk.slice(0, -seqLength);229                        }230                        break;231                    }232                }233            }234            // Convert chunk to a string, since single decode per chunk235            // is much effective than decode multiple small substrings236            chunk = decoder.decode(chunk);237        }238        const chunkLength = chunk.length;239        let lastFlushPoint = 0;240        let flushPoint = 0;241        // Main scan loop242        scan: for (let i = 0; i < chunkLength; i++) {243            if (this.stateString) {244                for (; i < chunkLength; i++) {245                    if (this.stateStringEscape) {246                        this.stateStringEscape = false;247                    } else {248                        switch (chunk.charCodeAt(i)) {249                            case 0x22: /* " */250                                this.stateString = false;251                                continue scan;252                            case 0x5C: /* \ */253                                this.stateStringEscape = true;254                        }255                    }256                }257                break;258            }259            switch (chunk.charCodeAt(i)) {260                case 0x22: /* " */261                    this.stateString = true;262                    this.stateStringEscape = false;263                    break;264                case 0x2C: /* , */265                    flushPoint = i;266                    break;267                case 0x7B: /* { */268                    // Open an object269                    flushPoint = i + 1;270                    this.stack[this.flushDepth++] = STACK_OBJECT;271                    break;272                case 0x5B: /* [ */273                    // Open an array274                    flushPoint = i + 1;275                    this.stack[this.flushDepth++] = STACK_ARRAY;276                    break;277                case 0x5D: /* ] */278                case 0x7D: /* } */279                    // Close an object or array280                    flushPoint = i + 1;281                    this.flushDepth--;282                    if (this.flushDepth < this.lastFlushDepth) {283                        this.flush(chunk, lastFlushPoint, flushPoint);284                        lastFlushPoint = flushPoint;285                    }286                    break;287                case 0x09: /* \t */288                case 0x0A: /* \n */289                case 0x0D: /* \r */290                case 0x20: /* space */291                    // Move points forward when they points on current position and it's a whitespace292                    if (lastFlushPoint === i) {293                        lastFlushPoint++;294                    }295                    if (flushPoint === i) {296                        flushPoint++;297                    }298                    break;299            }300        }301        if (flushPoint > lastFlushPoint) {302            this.flush(chunk, lastFlushPoint, flushPoint);303        }304        // Produce pendingChunk if something left305        if (flushPoint < chunkLength) {306            if (this.pendingChunk !== null) {307                // When there is already a pending chunk then no flush happened,308                // appending entire chunk to pending one309                this.pendingChunk += chunk;310            } else {311                // Create a pending chunk, it will start with non-whitespace since312                // flushPoint was moved forward away from whitespaces on scan313                this.pendingChunk = chunk.slice(flushPoint, chunkLength);314            }315        }316        this.chunkOffset += chunkLength;317    }318    finish() {319        if (this.pendingChunk !== null) {320            this.flush('', 0, 0);321            this.pendingChunk = null;322        }323        return this.value;324    }...

collaboration.service_test.js

Source:collaboration.service_test.js

...22				Bacon.interval(0, [{$id: 'id'}])23			)24	}25	function flushAll(){26		fb.ref.flush();27    try { 28    	$timeout.flush() 29    }30    // Catch all digest errors! Throw all others!31    catch (e) {32    	if(!/digest/ig.test(e.message) && !/deferred/ig.test(e.message)){33    		throw e34    	}35    }36	}37	beforeEach(function(){38		module('goodMood', function($provide){39			$provide.value('Auth', Auth)40			$provide.value('Iteration', Iteration)41			$provide.value('Thread', Thread)42			$provide.value('User', User)...

index.js

Source:index.js

...83  }84  end (chunk, encoding, cb) {85    if (chunk)86      this.write(chunk, encoding)87    this.flush(this[_finishFlushFlag])88    this[_ended] = true89    return super.end(null, null, cb)90  }91  get ended () {92    return this[_ended]93  }94  write (chunk, encoding, cb) {95    // process the chunk using the sync process96    // then super.write() all the outputted chunks97    if (typeof encoding === 'function')98      cb = encoding, encoding = 'utf8'99    if (typeof chunk === 'string')100      chunk = Buffer.from(chunk, encoding)101    if (this[_sawError])102      return103    assert(this[_handle], 'zlib binding closed')104    // _processChunk tries to .close() the native handle after it's done, so we105    // intercept that by temporarily making it a no-op.106    const nativeHandle = this[_handle]._handle107    const originalNativeClose = nativeHandle.close108    nativeHandle.close = () => {}109    const originalClose = this[_handle].close110    this[_handle].close = () => {}111    // It also calls `Buffer.concat()` at the end, which may be convenient112    // for some, but which we are not interested in as it slows us down.113    Buffer.concat = (args) => args114    let result115    try {116      const flushFlag = typeof chunk[_flushFlag] === 'number'117        ? chunk[_flushFlag] : this[_flushFlag]118      result = this[_handle]._processChunk(chunk, flushFlag)119      // if we don't throw, reset it back how it was120      Buffer.concat = OriginalBufferConcat121    } catch (err) {122      // or if we do, put Buffer.concat() back before we emit error123      // Error events call into user code, which may call Buffer.concat()124      Buffer.concat = OriginalBufferConcat125      this[_onError](new ZlibError(err))126    } finally {127      if (this[_handle]) {128        // Core zlib resets `_handle` to null after attempting to close the129        // native handle. Our no-op handler prevented actual closure, but we130        // need to restore the `._handle` property.131        this[_handle]._handle = nativeHandle132        nativeHandle.close = originalNativeClose133        this[_handle].close = originalClose134        // `_processChunk()` adds an 'error' listener. If we don't remove it135        // after each call, these handlers start piling up.136        this[_handle].removeAllListeners('error')137      }138    }139    let writeReturn140    if (result) {141      if (Array.isArray(result) && result.length > 0) {142        // The first buffer is always `handle._outBuffer`, which would be143        // re-used for later invocations; so, we always have to copy that one.144        writeReturn = super.write(Buffer.from(result[0]))145        for (let i = 1; i < result.length; i++) {146          writeReturn = super.write(result[i])147        }148      } else {149        writeReturn = super.write(Buffer.from(result))150      }151    }152    if (cb)153      cb()154    return writeReturn155  }156}157class Zlib extends ZlibBase {158  constructor (opts, mode) {159    opts = opts || {}160    opts.flush = opts.flush || constants.Z_NO_FLUSH161    opts.finishFlush = opts.finishFlush || constants.Z_FINISH162    super(opts, mode)163    this[_fullFlushFlag] = constants.Z_FULL_FLUSH164    this[_level] = opts.level165    this[_strategy] = opts.strategy166  }167  params (level, strategy) {168    if (this[_sawError])169      return170    if (!this[_handle])171      throw new Error('cannot switch params when binding is closed')172    // no way to test this without also not supporting params at all173    /* istanbul ignore if */174    if (!this[_handle].params)175      throw new Error('not supported in this implementation')176    if (this[_level] !== level || this[_strategy] !== strategy) {177      this.flush(constants.Z_SYNC_FLUSH)178      assert(this[_handle], 'zlib binding closed')179      // .params() calls .flush(), but the latter is always async in the180      // core zlib. We override .flush() temporarily to intercept that and181      // flush synchronously.182      const origFlush = this[_handle].flush183      this[_handle].flush = (flushFlag, cb) => {184        this.flush(flushFlag)185        cb()186      }187      try {188        this[_handle].params(level, strategy)189      } finally {190        this[_handle].flush = origFlush191      }192      /* istanbul ignore else */193      if (this[_handle]) {194        this[_level] = level195        this[_strategy] = strategy196      }197    }198  }...

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