brew/Library/Homebrew/test/pathname_spec.rb
Jeppe Toustrup ebaf3cdc6a Add 'B' for bytes to cleanup command output
When `brew cleanup` is run it prints out a message like the following:

> This operation has freed approximately 222M of disk space.

The '222M' refers to megabytes but the normal acronym for megabytes would be
'MB'. The 'B' is also missing from kilobytes and gigabytes in the output, so
that's what this commit adds.
2017-02-25 11:30:46 +00:00

301 lines
8.2 KiB
Ruby

require "tmpdir"
require "extend/pathname"
require "install_renamed"
describe Pathname do
include FileUtils
let(:src) { Pathname.new(Dir.mktmpdir) }
let(:dst) { Pathname.new(Dir.mktmpdir) }
let(:file) { src/"foo" }
let(:dir) { src/"bar" }
after(:each) { rm_rf [src, dst] }
describe DiskUsageExtension do
before(:each) do
mkdir_p dir/"a-directory"
touch [dir/".DS_Store", dir/"a-file"]
File.truncate(dir/"a-file", 1_048_576)
ln_s dir/"a-file", dir/"a-symlink"
ln dir/"a-file", dir/"a-hardlink"
end
describe "#file_count" do
it "returns the number of files in a directory" do
expect(dir.file_count).to eq(3)
end
end
describe "#abv" do
context "when called on a directory" do
it "returns a string with the file count and disk usage" do
expect(dir.abv).to eq("3 files, 1MB")
end
end
context "when called on a file" do
it "returns the disk usage" do
expect((dir/"a-file").abv).to eq("1MB")
end
end
end
end
describe "#rmdir_if_possible" do
before(:each) { mkdir_p dir }
it "returns true and removes a directory if it doesn't contain files" do
expect(dir.rmdir_if_possible).to be true
expect(dir).not_to exist
end
it "returns false and doesn't delete a directory if it contains files" do
touch dir/"foo"
expect(dir.rmdir_if_possible).to be false
expect(dir).to be_a_directory
end
it "ignores .DS_Store files" do
touch dir/".DS_Store"
expect(dir.rmdir_if_possible).to be true
expect(dir).not_to exist
end
end
describe "#write" do
it "creates a file and writes to it" do
expect(file).not_to exist
file.write("CONTENT")
expect(File.read(file)).to eq("CONTENT")
end
it "raises an error if the file already exists" do
touch file
expect { file.write("CONTENT") }.to raise_error(RuntimeError)
end
end
describe "#append_lines" do
it "appends lines to a file" do
touch file
file.append_lines("CONTENT")
expect(File.read(file)).to eq <<-EOS.undent
CONTENT
EOS
file.append_lines("CONTENTS")
expect(File.read(file)).to eq <<-EOS.undent
CONTENT
CONTENTS
EOS
end
it "raises an error if the file does not exist" do
expect(file).not_to exist
expect { file.append_lines("CONTENT") }.to raise_error(RuntimeError)
end
end
describe "#atomic_write" do
it "atomically replaces a file" do
touch file
file.atomic_write("CONTENT")
expect(File.read(file)).to eq("CONTENT")
end
it "preserves permissions" do
File.open(file, "w", 0100777).close
file.atomic_write("CONTENT")
expect(file.stat.mode).to eq(0100777 & ~File.umask)
end
it "preserves default permissions" do
file.atomic_write("CONTENT")
sentinel = file.parent.join("sentinel")
touch sentinel
expect(file.stat.mode).to eq(sentinel.stat.mode)
end
end
describe "#ensure_writable" do
it "makes a file writable and restores permissions afterwards" do
touch file
chmod 0555, file
expect(file).not_to be_writable
file.ensure_writable do
expect(file).to be_writable
end
expect(file).not_to be_writable
end
end
describe "#extname" do
it "supports common multi-level archives" do
expect(Pathname.new("foo-0.1.tar.gz").extname).to eq(".tar.gz")
expect(Pathname.new("foo-0.1.cpio.gz").extname).to eq(".cpio.gz")
end
end
describe "#stem" do
it "returns the basename without double extensions" do
expect(Pathname("foo-0.1.tar.gz").stem).to eq("foo-0.1")
expect(Pathname("foo-0.1.cpio.gz").stem).to eq("foo-0.1")
end
end
describe "#install" do
before(:each) do
(src/"a.txt").write "This is sample file a."
(src/"b.txt").write "This is sample file b."
end
it "raises an error if the file doesn't exist" do
expect { dst.install "non_existent_file" }.to raise_error(Errno::ENOENT)
end
it "installs a file to a directory with its basename" do
touch file
dst.install(file)
expect(dst/file.basename).to exist
expect(file).not_to exist
end
it "creates intermediate directories" do
touch file
expect(dir).not_to be_a_directory
dir.install(file)
expect(dir).to be_a_directory
end
it "can install a file" do
dst.install src/"a.txt"
expect(dst/"a.txt").to exist, "a.txt was not installed"
expect(dst/"b.txt").not_to exist, "b.txt was installed."
end
it "can install an array of files" do
dst.install [src/"a.txt", src/"b.txt"]
expect(dst/"a.txt").to exist, "a.txt was not installed"
expect(dst/"b.txt").to exist, "b.txt was not installed"
end
it "can install a directory" do
bin = src/"bin"
bin.mkpath
mv Dir[src/"*.txt"], bin
dst.install bin
expect(dst/"bin/a.txt").to exist, "a.txt was not installed"
expect(dst/"bin/b.txt").to exist, "b.txt was not installed"
end
it "supports renaming files" do
dst.install src/"a.txt" => "c.txt"
expect(dst/"c.txt").to exist, "c.txt was not installed"
expect(dst/"a.txt").not_to exist, "a.txt was installed but not renamed"
expect(dst/"b.txt").not_to exist, "b.txt was installed"
end
it "supports renaming multiple files" do
dst.install(src/"a.txt" => "c.txt", src/"b.txt" => "d.txt")
expect(dst/"c.txt").to exist, "c.txt was not installed"
expect(dst/"d.txt").to exist, "d.txt was not installed"
expect(dst/"a.txt").not_to exist, "a.txt was installed but not renamed"
expect(dst/"b.txt").not_to exist, "b.txt was installed but not renamed"
end
it "supports renaming directories" do
bin = src/"bin"
bin.mkpath
mv Dir[src/"*.txt"], bin
dst.install bin => "libexec"
expect(dst/"bin").not_to exist, "bin was installed but not renamed"
expect(dst/"libexec/a.txt").to exist, "a.txt was not installed"
expect(dst/"libexec/b.txt").to exist, "b.txt was not installed"
end
it "can install directories as relative symlinks" do
bin = src/"bin"
bin.mkpath
mv Dir[src/"*.txt"], bin
dst.install_symlink bin
expect(dst/"bin").to be_a_symlink
expect(dst/"bin").to be_a_directory
expect(dst/"bin/a.txt").to exist
expect(dst/"bin/b.txt").to exist
expect((dst/"bin").readlink).to be_relative
end
it "can install relative paths as symlinks" do
dst.install_symlink "foo" => "bar"
expect((dst/"bar").readlink).to eq(Pathname.new("foo"))
end
end
describe InstallRenamed do
before(:each) do
dst.extend(InstallRenamed)
end
it "renames the installed file if it already exists" do
file.write "a"
dst.install file
file.write "b"
dst.install file
expect(File.read(dst/file.basename)).to eq("a")
expect(File.read(dst/"#{file.basename}.default")).to eq("b")
end
it "renames the installed directory" do
file.write "a"
dst.install src
expect(File.read(dst/src.basename/file.basename)).to eq("a")
end
it "recursively renames directories" do
(dst/dir.basename).mkpath
(dst/dir.basename/"another_file").write "a"
dir.mkpath
(dir/"another_file").write "b"
dst.install dir
expect(File.read(dst/dir.basename/"another_file.default")).to eq("b")
end
end
describe "#cp_path_sub" do
it "copies a file and replaces the given pattern" do
file.write "a"
file.cp_path_sub src, dst
expect(File.read(dst/file.basename)).to eq("a")
end
it "copies a directory and replaces the given pattern" do
dir.mkpath
dir.cp_path_sub src, dst
expect(dst/dir.basename).to be_a_directory
end
end
end
describe FileUtils do
let(:dst) { Pathname.new(Dir.mktmpdir) }
describe "#mkdir" do
it "creates indermediate directories" do
described_class.mkdir dst/"foo/bar/baz" do
expect(dst/"foo/bar/baz").to exist, "foo/bar/baz was not created"
expect(dst/"foo/bar/baz").to be_a_directory, "foo/bar/baz was not a directory structure"
end
end
end
end