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Diffstat (limited to 'spec/ruby/core/dir/chdir_spec.rb')
-rw-r--r-- | spec/ruby/core/dir/chdir_spec.rb | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/spec/ruby/core/dir/chdir_spec.rb b/spec/ruby/core/dir/chdir_spec.rb new file mode 100644 index 0000000000..f5b0b80d1c --- /dev/null +++ b/spec/ruby/core/dir/chdir_spec.rb @@ -0,0 +1,124 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/common', __FILE__) + +describe "Dir.chdir" do + before :all do + DirSpecs.create_mock_dirs + end + + after :all do + DirSpecs.delete_mock_dirs + end + + before :each do + @original = Dir.pwd + end + + after :each do + Dir.chdir(@original) + end + + it "defaults to $HOME with no arguments" do + if ENV['HOME'] + Dir.chdir + current_dir = Dir.pwd + + Dir.chdir(ENV['HOME']) + home = Dir.pwd + current_dir.should == home + end + end + + it "changes to the specified directory" do + Dir.chdir DirSpecs.mock_dir + Dir.pwd.should == DirSpecs.mock_dir + end + + it "returns 0 when successfully changing directory" do + Dir.chdir(@original).should == 0 + end + + it "calls #to_str on the argument if it's not a String" do + obj = mock('path') + obj.should_receive(:to_str).and_return(Dir.pwd) + Dir.chdir(obj) + end + + it "calls #to_str on the argument if it's not a String and a block is given" do + obj = mock('path') + obj.should_receive(:to_str).and_return(Dir.pwd) + Dir.chdir(obj) { } + end + + it "calls #to_path on the argument if it's not a String" do + obj = mock('path') + obj.should_receive(:to_path).and_return(Dir.pwd) + Dir.chdir(obj) + end + + it "prefers #to_path over #to_str" do + obj = Class.new do + def to_path; Dir.pwd; end + def to_str; DirSpecs.mock_dir; end + end + Dir.chdir(obj.new) + Dir.pwd.should == @original + end + + it "returns the value of the block when a block is given" do + Dir.chdir(@original) { :block_value }.should == :block_value + end + + it "defaults to the home directory when given a block but no argument" do + # Windows will return a path with forward slashes for ENV["HOME"] so we have + # to compare the route representations returned by Dir.chdir. + current_dir = "" + Dir.chdir { current_dir = Dir.pwd } + + Dir.chdir(ENV['HOME']) + home = Dir.pwd + current_dir.should == home + end + + it "changes to the specified directory for the duration of the block" do + ar = Dir.chdir(DirSpecs.mock_dir) { |dir| [dir, Dir.pwd] } + ar.should == [DirSpecs.mock_dir, DirSpecs.mock_dir] + + Dir.pwd.should == @original + end + + it "raises an Errno::ENOENT if the directory does not exist" do + lambda { Dir.chdir DirSpecs.nonexistent }.should raise_error(Errno::ENOENT) + lambda { Dir.chdir(DirSpecs.nonexistent) { } }.should raise_error(Errno::ENOENT) + end + + it "raises an Errno::ENOENT if the original directory no longer exists" do + dir1 = tmp('/testdir1') + dir2 = tmp('/testdir2') + File.exist?(dir1).should == false + File.exist?(dir2).should == false + Dir.mkdir dir1 + Dir.mkdir dir2 + begin + lambda { + Dir.chdir dir1 do + Dir.chdir(dir2) { Dir.unlink dir1 } + end + }.should raise_error(Errno::ENOENT) + ensure + Dir.unlink dir1 if File.exist?(dir1) + Dir.unlink dir2 if File.exist?(dir2) + end + end + + it "always returns to the original directory when given a block" do + begin + Dir.chdir(DirSpecs.mock_dir) do + raise StandardError, "something bad happened" + end + rescue StandardError + end + + Dir.pwd.should == @original + end +end |