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Diffstat (limited to 'spec/ruby/core/file/extname_spec.rb')
-rw-r--r-- | spec/ruby/core/file/extname_spec.rb | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/spec/ruby/core/file/extname_spec.rb b/spec/ruby/core/file/extname_spec.rb new file mode 100644 index 0000000000..fedd4fc89f --- /dev/null +++ b/spec/ruby/core/file/extname_spec.rb @@ -0,0 +1,54 @@ +# -*- encoding: utf-8 -*- +require File.expand_path('../../../spec_helper', __FILE__) + +describe "File.extname" do + it "returns the extension (the portion of file name in path after the period)." do + File.extname("foo.rb").should == ".rb" + File.extname("/foo/bar.rb").should == ".rb" + File.extname("/foo.rb/bar.c").should == ".c" + File.extname("bar").should == "" + File.extname(".bashrc").should == "" + File.extname("/foo.bar/baz").should == "" + File.extname(".app.conf").should == ".conf" + end + + it "returns the extension (the portion of file name in path after the period).(edge cases)" do + File.extname("").should == "" + File.extname(".").should == "" + File.extname("/").should == "" + File.extname("/.").should == "" + File.extname("..").should == "" + File.extname("...").should == "" + File.extname("....").should == "" + File.extname(".foo.").should == "" + File.extname("foo.").should == "" + end + + it "returns only the last extension of a file with several dots" do + File.extname("a.b.c.d.e").should == ".e" + end + + it "accepts an object that has a #to_path method" do + File.extname(mock_to_path("a.b.c.d.e")).should == ".e" + end + + it "raises a TypeError if not passed a String type" do + lambda { File.extname(nil) }.should raise_error(TypeError) + lambda { File.extname(0) }.should raise_error(TypeError) + lambda { File.extname(true) }.should raise_error(TypeError) + lambda { File.extname(false) }.should raise_error(TypeError) + end + + it "raises an ArgumentError if not passed one argument" do + lambda { File.extname }.should raise_error(ArgumentError) + lambda { File.extname("foo.bar", "foo.baz") }.should raise_error(ArgumentError) + end + + with_feature :encoding do + + it "returns the extension for a multibyte filename" do + File.extname('Имя.m4a').should == ".m4a" + end + + end +end |