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require "../spec_helper"
require "../../support/tempfile"
private class TestRNG(T)
include Random
def initialize(@data : Array(T))
@i = 0
end
def next_u : T
i = @i
@i = (i + 1) % @data.size
@data[i]
end
def reset
@i = 0
end
end
private def normalize_permissions(permissions, *, directory)
{% if flag?(:win32) %}
normalized_permissions = 0o444
normalized_permissions |= 0o222 if permissions.bits_set?(0o200)
normalized_permissions |= 0o111 if directory
File::Permissions.new(normalized_permissions)
{% else %}
File::Permissions.new(permissions)
{% end %}
end
describe File do
describe ".tempname" do
it "creates a path without creating the file" do
path = File.tempname
File.exists?(path).should be_false
File.dirname(path).should eq Dir.tempdir
end
it "accepts single suffix argument" do
path = File.tempname ".bar"
File.exists?(path).should be_false
File.dirname(path).should eq Dir.tempdir
File.extname(path).should eq(".bar")
end
it "accepts prefix and suffix arguments" do
path = File.tempname "foo", ".bar"
File.exists?(path).should be_false
File.dirname(path).should eq Dir.tempdir
File.extname(path).should eq(".bar")
File.basename(path).should start_with("foo")
end
it "accepts prefix with separator" do
path = File.tempname "foo/", nil
File.dirname(path).should eq File.join(Dir.tempdir, "foo")
File.basename(path).should_not start_with("foo")
end
it "accepts dir argument" do
path = File.tempname(dir: "foo")
File.dirname(path).should eq("foo")
end
end
describe ".tempfile" do
it "creates and writes" do
tempfile = File.tempfile
tempfile.print "Hello!"
tempfile.info.permissions.should eq normalize_permissions(0o600, directory: false)
tempfile.close
File.exists?(tempfile.path).should be_true
File.read(tempfile.path).should eq("Hello!")
ensure
tempfile.try &.delete
end
it "accepts single suffix argument" do
tempfile = File.tempfile ".bar"
tempfile.print "Hello!"
tempfile.info.permissions.should eq normalize_permissions(0o600, directory: false)
tempfile.close
File.extname(tempfile.path).should eq(".bar")
File.exists?(tempfile.path).should be_true
File.read(tempfile.path).should eq("Hello!")
ensure
tempfile.try &.delete
end
it "accepts prefix and suffix arguments" do
tempfile = File.tempfile "foo", ".bar"
tempfile.print "Hello!"
tempfile.info.permissions.should eq normalize_permissions(0o600, directory: false)
tempfile.close
File.extname(tempfile.path).should eq(".bar")
File.basename(tempfile.path).should start_with("foo")
File.exists?(tempfile.path).should be_true
File.read(tempfile.path).should eq("Hello!")
ensure
tempfile.try &.delete
end
it "accepts dir argument" do
file = File.tempfile(dir: datapath)
File.dirname(file.path).should eq(datapath)
file.close
ensure
file.try &.delete
end
it "fails in nonwriteable folder" do
err_directory = (datapath("non-existing-folder") + Path::SEPARATORS[0]).inspect_unquoted
expect_raises(File::NotFoundError, "Error creating temporary file: '#{err_directory}") do
File.tempfile dir: datapath("non-existing-folder")
end
end
it "rejects null byte" do
expect_raises(ArgumentError, "String contains null byte") do
File.tempfile("foo\0")
end
expect_raises(ArgumentError, "String contains null byte") do
File.tempfile("foo", "bar\0")
end
expect_raises(ArgumentError, "String contains null byte") do
File.tempfile("foo", "bar", dir: "baz\0")
end
end
describe "with block" do
it "closes file" do
filepath = nil
tempfile = File.tempfile do |tempfile|
filepath = tempfile.path
end
tempfile.path.should eq filepath
tempfile.closed?.should be_true
filepath = filepath.not_nil!
File.exists?(filepath).should be_true
ensure
File.delete(filepath) if filepath
end
it "accepts single suffix argument" do
tempfile = File.tempfile(".bar") do |tempfile|
File.exists?(tempfile.path).should be_true
tempfile.closed?.should be_false
end
tempfile.closed?.should be_true
File.extname(tempfile.path).should eq(".bar")
File.exists?(tempfile.path).should be_true
ensure
File.delete(tempfile.path) if tempfile
end
it "accepts prefix and suffix arguments" do
tempfile = File.tempfile("foo", ".bar") do |tempfile|
File.exists?(tempfile.path).should be_true
tempfile.closed?.should be_false
end
tempfile.closed?.should be_true
File.extname(tempfile.path).should eq(".bar")
File.basename(tempfile.path).should start_with("foo")
File.exists?(tempfile.path).should be_true
ensure
File.delete(tempfile.path) if tempfile
end
it "accepts dir argument" do
tempfile = File.tempfile(dir: datapath) do |tempfile|
end
File.dirname(tempfile.path).should eq(datapath)
ensure
File.delete(tempfile.path) if tempfile
end
end
end
end
describe Crystal::System::File do
describe ".mktemp" do
it "creates random file name" do
with_tempfile "random-path" do |tempdir|
Dir.mkdir tempdir
fd, path = Crystal::System::File.mktemp("A", "Z", dir: tempdir, random: TestRNG.new([7, 8, 9, 10, 11, 12, 13, 14]))
path.should eq Path[tempdir, "A789abcdeZ"].to_s
ensure
IO::FileDescriptor.new(fd).close if fd
end
end
it "retries when file exists" do
with_tempfile "retry" do |tempdir|
Dir.mkdir tempdir
existing_path = Path[tempdir, "A789abcdeZ"]
File.touch existing_path
fd, path = Crystal::System::File.mktemp("A", "Z", dir: tempdir, random: TestRNG.new([7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]))
path.should eq File.join(tempdir, "AfghijklmZ")
ensure
IO::FileDescriptor.new(fd).close if fd
end
end
it "raises when no valid path is found" do
with_tempfile "random-path" do |tempdir|
Dir.mkdir tempdir
File.touch Path[tempdir, "A789abcdeZ"]
expect_raises(File::AlreadyExistsError, "Error creating temporary file") do
fd, path = Crystal::System::File.mktemp("A", "Z", dir: tempdir, random: TestRNG.new([7, 8, 9, 10, 11, 12, 13, 14]))
ensure
IO::FileDescriptor.new(fd).close if fd
end
end
end
end
end
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