filer/tests/spec/idbfs.spec.js

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var TEST_DATABASE_NAME = '__test';
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var DEFAULT_TIMEOUT = 5000;
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var test_database_names = [];
window.onbeforeunload = function() {
test_database_names.forEach(function(name) {
indexedDB.deleteDatabase(name);
});
};
function mk_id(length) {
var text = '';
var tokens = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
for( var i=0; i < length; i++ )
text += tokens.charAt(Math.floor(Math.random() * tokens.length));
return text;
};
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function mk_db_name() {
var name = TEST_DATABASE_NAME + mk_id(5) + Date.now();
test_database_names.push(name);
return name;
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};
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function typed_array_equal(left, right) {
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if(left.length !== right.length) {
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return false;
}
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for(var i = 0; i < left.length; ++ i) {
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if(left[i] !== right[i]) {
return false;
}
}
return true;
};
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describe("IDBFS", function() {
it("is defined", function() {
expect(typeof IDBFS).not.toEqual(undefined);
});
it("has FileSystem constructor", function() {
expect(typeof IDBFS.FileSystem).toEqual('function');
});
});
describe("fs", function() {
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beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it("is an object", function() {
expect(typeof this.fs).toEqual('object');
});
it('should have a root directory', function() {
var complete = false;
var _result;
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this.fs.stat('/', function(error, result) {
_result = result;
complete = true;
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_result).toBeDefined();
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});
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});
});
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describe('fs.stat', function() {
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beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.stat).toEqual('function');
});
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it('should return an error if path does not exist', function() {
var complete = false;
var _error, _result;
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this.fs.stat('/tmp', function(error, result) {
_error = error;
_result = result;
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complete = true;
});
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waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
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});
});
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it('should return a stat object if path exists', function() {
var complete = false;
var _error, _result;
var that = this;
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that.fs.stat('/', function(error, result) {
_error = error;
_result = result;
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complete = true;
});
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waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_result).toBeDefined();
expect(_error).not.toBeDefined();
expect(_result['node']).toBeDefined();
expect(_result['dev']).toEqual(that.db_name);
expect(_result['size']).toBeDefined();
expect(_result['nlinks']).toEqual(jasmine.any(Number));
expect(_result['atime']).toEqual(jasmine.any(Number));
expect(_result['mtime']).toEqual(jasmine.any(Number));
expect(_result['ctime']).toEqual(jasmine.any(Number));
expect(_result['type']).toBeDefined();
});
});
});
describe('fs.fstat', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.fstat).toEqual('function');
});
it('should return a stat object for a valid descriptor', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.fstat(fd, function(error, result) {
_error = error;
_result = result;
complete = true;
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_result).toBeDefined();
expect(_error).not.toBeDefined();
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expect(_result['node']).toBeDefined();
expect(_result['dev']).toEqual(that.db_name);
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expect(_result['size']).toBeDefined();
expect(_result['nlinks']).toEqual(jasmine.any(Number));
expect(_result['atime']).toEqual(jasmine.any(Number));
expect(_result['mtime']).toEqual(jasmine.any(Number));
expect(_result['ctime']).toEqual(jasmine.any(Number));
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expect(_result['type']).toBeDefined();
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});
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});
});
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describe('fs.mkdir', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
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it('should be a function', function() {
expect(typeof this.fs.mkdir).toEqual('function');
});
it('should return an error if part of the parent path does not exist', function() {
var complete = false;
var _error;
var that = this;
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that.fs.mkdir('/tmp/mydir', function(error) {
_error = error;
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complete = true;
});
waitsFor(function() {
return complete;
}, 'stat to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
});
});
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it('should return an error if the path already exists', function() {
var complete = false;
var _error;
var that = this;
that.fs.mkdir('/', function(error) {
_error = error;
complete = true;
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).toBeDefined();
});
});
it('should make a new directory', function() {
var complete = false;
var _error, _result, _stat;
var that = this;
that.fs.mkdir('/tmp', function(error, result) {
_error = error;
_result = result;
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that.fs.stat('/tmp', function(error, result) {
_stat = result;
complete = true;
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});
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).not.toBeDefined();
expect(_stat).toBeDefined();
});
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});
});
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describe('fs.readdir', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.readdir).toEqual('function');
});
it('should return an error if the path does not exist', function() {
var complete = false;
var _error;
var that = this;
that.fs.readdir('/tmp/mydir', function(error) {
_error = error;
complete = true;
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
});
});
it('should return a list of files from an existing directory', function() {
var complete = false;
var _error, _files;
var that = this;
that.fs.mkdir('/tmp', function(error) {
that.fs.readdir('/', function(error, result) {
_error = error;
_files = result;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_files.length).toEqual(1);
expect(_files[0]).toEqual('tmp');
});
});
});
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describe('fs.rmdir', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.rmdir).toEqual('function');
});
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it('should return an error if the path does not exist', function() {
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var complete = false;
var _error;
var that = this;
that.fs.rmdir('/tmp/mydir', function(error) {
_error = error;
complete = true;
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).toBeDefined();
});
});
it('should return an error if attempting to remove the root directory', function() {
var complete = false;
var _error;
var that = this;
that.fs.rmdir('/', function(error) {
_error = error;
complete = true;
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).toBeDefined();
});
});
it('should return an error if the directory is not empty', function() {
var complete = false;
var _error;
var that = this;
that.fs.mkdir('/tmp', function(error) {
that.fs.mkdir('/tmp/mydir', function(error) {
that.fs.rmdir('/', function(error) {
_error = error;
complete = true;
});
});
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).toBeDefined();
});
});
it('should remove an existing directory', function() {
var complete = false;
var _error, _stat;
var that = this;
that.fs.mkdir('/tmp', function(error) {
that.fs.rmdir('/tmp', function(error) {
_error = error;
that.fs.stat('/tmp', function(error, result) {
_stat = result;
complete = true;
});
});
});
waitsFor(function() {
return complete;
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}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).not.toBeDefined();
expect(_stat).not.toBeDefined();
});
});
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});
describe('fs.open', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.open).toEqual('function');
});
it('should return an error if the parent path does not exist', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.open('/tmp/myfile', 'w+', function(error, result) {
_error = error;
_result = result;
complete = true;
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
});
});
it('should return an error when flagged for read and the path does not exist', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.open('/myfile', 'r+', function(error, result) {
_error = error;
_result = result;
complete = true;
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
});
});
it('should return an error when flagged for write and the path is a directory', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.mkdir('/tmp', function(error) {
if(error) throw error;
that.fs.open('/tmp', 'w', function(error, result) {
_error = error;
_result = result;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
});
});
it('should return an error when flagged for append and the path is a directory', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.mkdir('/tmp', function(error) {
if(error) throw error;
that.fs.open('/tmp', 'a', function(error, result) {
_error = error;
_result = result;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
});
});
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it('should return a unique file descriptor', function() {
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var complete1 = false;
var complete2 = false;
var _error, _result1, _result2;
var that = this;
that.fs.open('/file1', 'w+', function(error, fd) {
if(error) throw error;
_error = error;
_result1 = fd;
complete1 = true;
});
that.fs.open('/file2', 'w+', function(error, fd) {
if(error) throw error;
_error = error;
_result2 = fd;
complete2 = true;
});
waitsFor(function() {
return complete1 && complete2;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result1).toBeDefined();
expect(_result2).toBeDefined();
expect(_result1).not.toEqual(_result2);
});
});
it('should create a new file when flagged for write', function() {
var complete = false;
var _error, _result;
var that = this;
that.fs.open('/myfile', 'w', function(error, result) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
_error = error;
_result = result;
complete = true;
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toBeDefined();
});
});
});
describe('fs.write', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.write).toEqual('function');
});
it('should write data to a file', function() {
var complete = false;
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var _error, _result, _stats;
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var that = this;
var buffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
that.fs.open('/myfile', 'w', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, buffer, 0, buffer.length, 0, function(error, result) {
_error = error;
_result = result;
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that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_stats = result;
complete = true;
});
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})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(buffer.length);
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expect(_stats.size).toEqual(buffer.length);
});
});
it('should update the current file position', function() {
var complete = false;
var _error, _result, _stats;
var that = this;
var buffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
_result = 0;
that.fs.open('/myfile', 'w', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
_result += result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
_result += result;
that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_stats = result;
complete = true;
});
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(2 * buffer.length);
expect(_stats.size).toEqual(_result);
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});
});
});
describe('fs.writeFile, fs.readFile', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.writeFile).toEqual('function');
expect(typeof this.fs.readFile).toEqual('function');
});
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it('should error when path is wrong to readFile', function() {
var complete = false;
var _error, _result;
var that = this;
var contents = "This is a file.";
that.fs.readFile('/no-such-file', 'utf8', function(error, data) {
_error = error;
_result = data;
complete = true;
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_result).not.toBeDefined();
});
});
it('should write, read a utf8 file without specifying utf8 in writeFile', function() {
var complete = false;
var _error, _result;
var that = this;
var contents = "This is a file.";
that.fs.writeFile('/myfile', contents, function(error) {
if(error) throw error;
that.fs.readFile('/myfile', 'utf8', function(error2, data) {
if(error2) throw error2;
_result = data;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(contents);
});
});
it('should write, read a utf8 file with "utf8" option to writeFile', function() {
var complete = false;
var _error, _result;
var that = this;
var contents = "This is a file.";
that.fs.writeFile('/myfile', contents, 'utf8', function(error) {
if(error) throw error;
that.fs.readFile('/myfile', 'utf8', function(error2, data) {
if(error2) throw error2;
_result = data;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(contents);
});
});
it('should write, read a utf8 file with {encoding: "utf8"} option to writeFile', function() {
var complete = false;
var _error, _result;
var that = this;
var contents = "This is a file.";
that.fs.writeFile('/myfile', contents, { encoding: 'utf8' }, function(error) {
if(error) throw error;
that.fs.readFile('/myfile', 'utf8', function(error2, data) {
if(error2) throw error2;
_result = data;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(contents);
});
});
it('should write, read a binary file', function() {
var complete = false;
var _error, _result;
var that = this;
// String and utf8 binary encoded versions of the same thing:
var contents = "This is a file.";
var binary = new Uint8Array([84, 104, 105, 115, 32, 105, 115, 32, 97, 32, 102, 105, 108, 101, 46]);
that.fs.writeFile('/myfile', binary, function(error) {
if(error) throw error;
that.fs.readFile('/myfile', function(error2, data) {
if(error2) throw error2;
_result = data;
complete = true;
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(binary);
});
});
});
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describe('fs.read', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.read).toEqual('function');
});
it('should read data from a file', function() {
var complete = false;
var _error, _result;
var that = this;
var wbuffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
var rbuffer = new Uint8Array(wbuffer.length);
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) {
if(error) throw error;
that.fs.read(fd, rbuffer, 0, rbuffer.length, 0, function(error, result) {
_error = error;
_result = result;
complete = true;
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(rbuffer.length);
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expect(typed_array_equal(wbuffer, rbuffer)).toEqual(true);
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});
});
it('should update the current file position', function() {
var complete = false;
var _error, _result;
var that = this;
var wbuffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
var rbuffer = new Uint8Array(wbuffer.length);
_result = 0;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, wbuffer, 0, wbuffer.length, 0, function(error, result) {
if(error) throw error;
that.fs.read(fd, rbuffer, 0, rbuffer.length / 2, undefined, function(error, result) {
if(error) throw error;
_result += result;
that.fs.read(fd, rbuffer, rbuffer.length / 2, rbuffer.length, undefined, function(error, result) {
if(error) throw error;
_result += result;
complete = true;
});
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
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runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(rbuffer.length);
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expect(typed_array_equal(wbuffer.buffer, rbuffer.buffer)).toEqual(true);
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});
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});
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});
describe('fs.close', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.close).toEqual('function');
});
it('should release the file descriptor', function() {
var complete = false;
var _error;
var that = this;
var buffer = new Uint8Array(0);
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.close(fd, function(error) {
that.fs.read(fd, buffer, 0, buffer.length, undefined, function(error, result) {
_error = error;
complete = true;
});
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
});
});
});
describe('fs.link', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.link).toEqual('function');
});
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it('should create a link to an existing file', function() {
var complete = false;
var _error, _oldstats, _newstats;
var that = this;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.close(fd, function(error) {
if(error) throw error;
that.fs.link('/myfile', '/myotherfile', function(error) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_oldstats = result;
that.fs.stat('/myotherfile', function(error, result) {
if(error) throw error;
_newstats = result;
complete = true;
});
});
});
});
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_newstats.node).toEqual(_oldstats.node);
expect(_newstats.nlinks).toEqual(2);
expect(_newstats).toEqual(_oldstats);
});
});
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});
describe('fs.unlink', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.unlink).toEqual('function');
});
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it('should remove a link to an existing file', function() {
var complete1 = false;
var complete2 = false;
var _error, _stats;
var that = this;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.close(fd, function(error) {
if(error) throw error;
that.fs.link('/myfile', '/myotherfile', function(error) {
if(error) throw error;
that.fs.unlink('/myfile', function(error) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
_error = error;
complete1 = true;
});
that.fs.stat('/myotherfile', function(error, result) {
if(error) throw error;
_stats = result;
complete2 = true;
});
});
});
});
});
waitsFor(function() {
return complete1 && complete2;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).toBeDefined();
expect(_error).toBeDefined();
expect(_stats.nlinks).toEqual(1);
});
});
});
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describe('fs.lseek', function() {
beforeEach(function() {
this.db_name = mk_db_name();
this.fs = new IDBFS.FileSystem(this.db_name, 'FORMAT');
});
afterEach(function() {
indexedDB.deleteDatabase(this.db_name);
delete this.fs;
});
it('should be a function', function() {
expect(typeof this.fs.lseek).toEqual('function');
});
it('should set the current position if whence is SET', function() {
var complete = false;
var _error, _result, _stats;
var that = this;
var offset = 3;
var buffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
var result_buffer = new Uint8Array(buffer.length + offset);
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.lseek(fd, offset, 'SET', function(error, result) {
_error = error;
_result = result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.read(fd, result_buffer, 0, result_buffer.length, 0, function(error, result) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_stats = result;
complete = true;
});
});
});
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(offset);
expect(_stats.size).toEqual(offset + buffer.length);
var expected = new Uint8Array([1, 2, 3, 1, 2, 3, 4, 5, 6, 7, 8]);
expect(typed_array_equal(result_buffer, expected)).toEqual(true);
});
});
it('should update the current position if whence is CUR', function() {
var complete = false;
var _error, _result, _stats;
var that = this;
var offset = -2;
var buffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
var result_buffer = new Uint8Array(2 * buffer.length + offset);
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd = result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.lseek(fd, offset, 'CUR', function(error, result) {
_error = error;
_result = result;
that.fs.write(fd, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.read(fd, result_buffer, 0, result_buffer.length, 0, function(error, result) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_stats = result;
complete = true;
});
});
});
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(offset + buffer.length);
expect(_stats.size).toEqual(offset + 2 * buffer.length);
var expected = new Uint8Array([1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8]);
expect(typed_array_equal(result_buffer, expected)).toEqual(true);
});
});
it('should update the current position if whence is END', function() {
var complete = false;
var _error, _result, _stats;
var that = this;
var offset = 5;
var buffer = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8]);
var result_buffer;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd1 = result;
that.fs.write(fd1, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.open('/myfile', 'w+', function(error, result) {
if(error) throw error;
var fd2 = result;
that.fs.lseek(fd2, offset, 'END', function(error, result) {
_error = error;
_result = result;
that.fs.write(fd2, buffer, 0, buffer.length, undefined, function(error, result) {
if(error) throw error;
that.fs.stat('/myfile', function(error, result) {
if(error) throw error;
_stats = result;
result_buffer = new Uint8Array(_stats.size);
that.fs.read(fd2, result_buffer, 0, result_buffer.length, 0, function(error, result) {
if(error) throw error;
complete = true;
});
});
});
});
});
})
});
waitsFor(function() {
return complete;
}, 'test to complete', DEFAULT_TIMEOUT);
runs(function() {
expect(_error).not.toBeDefined();
expect(_result).toEqual(offset + buffer.length);
expect(_stats.size).toEqual(offset + 2 * buffer.length);
var expected = new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8]);
expect(typed_array_equal(result_buffer, expected)).toEqual(true);
});
});
});