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require 'fileutils'
module FileUpdateCheckerSharedTests
include FileUtils
def tmpdir
@tmpdir ||= Dir.mktmpdir(nil, __dir__)
end
def tmpfile(name)
"#{tmpdir}/#{name}"
end
def tmpfiles
@tmpfiles ||= %w(foo.rb bar.rb baz.rb).map { |f| tmpfile(f) }
end
def teardown
FileUtils.rm_rf(@tmpdir) if @tmpdir
end
def test_should_not_execute_the_block_if_no_paths_are_given
i = 0
checker = new_checker { i += 1 }
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_not_execute_the_block_if_no_files_change
i = 0
FileUtils.touch(tmpfiles)
checker = new_checker(tmpfiles) { i += 1 }
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_should_execute_the_block_once_when_files_are_created
i = 0
checker = new_checker(tmpfiles) { i += 1 }
touch(tmpfiles)
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_execute_the_block_once_when_files_are_modified
i = 0
FileUtils.touch(tmpfiles)
checker = new_checker(tmpfiles) { i += 1 }
touch(tmpfiles)
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_execute_the_block_once_when_files_are_deleted
i = 0
FileUtils.touch(tmpfiles)
checker = new_checker(tmpfiles) { i += 1 }
rm_f(tmpfiles)
assert checker.execute_if_updated
assert_equal 1, i
end
def test_updated_should_become_true_when_watched_files_are_created
i = 0
checker = new_checker(tmpfiles) { i += 1 }
assert !checker.updated?
touch(tmpfiles)
assert checker.updated?
end
def test_updated_should_become_true_when_watched_files_are_modified
i = 0
FileUtils.touch(tmpfiles)
checker = new_checker(tmpfiles) { i += 1 }
assert !checker.updated?
touch(tmpfiles)
assert checker.updated?
end
def test_updated_should_become_true_when_watched_files_are_deleted
i = 0
FileUtils.touch(tmpfiles)
checker = new_checker(tmpfiles) { i += 1 }
assert !checker.updated?
rm_f(tmpfiles)
assert checker.updated?
end
def test_should_be_robust_to_handle_files_with_wrong_modified_time
i = 0
FileUtils.touch(tmpfiles)
now = Time.now
time = Time.mktime(now.year + 1, now.month, now.day) # wrong mtime from the future
File.utime(time, time, tmpfiles[0])
checker = new_checker(tmpfiles) { i += 1 }
touch(tmpfiles[1..-1])
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_cache_updated_result_until_execute
i = 0
checker = new_checker(tmpfiles) { i += 1 }
assert !checker.updated?
touch(tmpfiles)
assert checker.updated?
checker.execute
assert !checker.updated?
end
def test_should_execute_the_block_if_files_change_in_a_watched_directory_one_extension
i = 0
checker = new_checker([], tmpdir => :rb) { i += 1 }
touch(tmpfile('foo.rb'))
assert checker.execute_if_updated
assert_equal 1, i
end
def test_should_execute_the_block_if_files_change_in_a_watched_directory_several_extensions
i = 0
checker = new_checker([], tmpdir => [:rb, :txt]) { i += 1 }
touch(tmpfile('foo.rb'))
assert checker.execute_if_updated
assert_equal 1, i
touch(tmpfile('foo.txt'))
assert checker.execute_if_updated
assert_equal 2, i
end
def test_should_not_execute_the_block_if_the_file_extension_is_not_watched
i = 0
checker = new_checker([], tmpdir => :txt) { i += 1 }
touch(tmpfile('foo.rb'))
assert !checker.execute_if_updated
assert_equal 0, i
end
def test_does_not_assume_files_exist_on_instantiation
i = 0
non_existing = tmpfile('non_existing.rb')
checker = new_checker([non_existing]) { i += 1 }
touch(non_existing)
assert checker.execute_if_updated
assert_equal 1, i
end
def test_detects_files_in_new_subdirectories
i = 0
checker = new_checker([], tmpdir => :rb) { i += 1 }
subdir = tmpfile('subdir')
mkdir(subdir)
wait
assert !checker.execute_if_updated
assert_equal 0, i
touch("#{subdir}/nested.rb")
assert checker.execute_if_updated
assert_equal 1, i
end
def test_looked_up_extensions_are_inherited_in_subdirectories_not_listening_to_them
i = 0
subdir = tmpfile('subdir')
mkdir(subdir)
checker = new_checker([], tmpdir => :rb, subdir => :txt) { i += 1 }
touch(tmpfile('new.txt'))
assert !checker.execute_if_updated
assert_equal 0, i
# subdir does not look for Ruby files, but its parent tmpdir does.
touch("#{subdir}/nested.rb")
assert checker.execute_if_updated
assert_equal 1, i
touch("#{subdir}/nested.txt")
assert checker.execute_if_updated
assert_equal 2, i
end
end
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