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# -*- 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
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