converted test-fs-read.lua

tests/test-fs-exists.lua

@@ -22,7 +22,7 @@ require('tap')(function(test)
 
     local f = module.path
 
-    test('fs.exists empty', function()
+    test('fs.exists', function()
       -- TODO: Is it OK that this callback signature is different from node.js,
       --       which is function(exists)?
       FS.exists(f, function(err, y)

tests/test-fs-read.lua

@@ -0,0 +1,43 @@
+--[[
+
+Copyright 2012-2015 The Luvit Authors. All Rights Reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License")
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS-IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+--]]
+
+require('tap')(function(test)
+  local math = require('math')
+  local string = require('string')
+  local FS = require('fs')
+  local Path = require('path')
+
+  test('fs.read and fs.readSync', function()
+    local filepath = Path.join(module.dir, 'fixtures', 'x.txt')
+    print(filepath)
+    local fd = FS.openSync(filepath, 'r')
+    local expected = 'xyz\n'
+    local readCalled = 0
+
+    FS.read(fd, #expected, 0, function(err, str, bytesRead)
+      readCalled = readCalled + 1
+      assert(not err)
+      assert(str == expected)
+      assert(#str == #expected)
+    end)
+
+    local r,e = FS.readSync(fd, #expected, 0)
+    assert(r == expected)
+    assert(#r == #expected)
+  end)
+end)