122 lines
3.4 KiB
Ruby
122 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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require_relative "abstract_unit"
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require "active_support/encrypted_file"
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class EncryptedFileTest < ActiveSupport::TestCase
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setup do
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@content = "One little fox jumped over the hedge"
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@tmpdir = Dir.mktmpdir("encrypted-file-test-")
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@content_path = File.join(@tmpdir, "content.txt.enc")
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@key_path = File.join(@tmpdir, "content.txt.key")
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File.write(@key_path, ActiveSupport::EncryptedFile.generate_key)
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@encrypted_file = encrypted_file(@content_path)
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end
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teardown do
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FileUtils.rm_rf @content_path
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FileUtils.rm_rf @key_path
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FileUtils.rm_rf @tmpdir
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end
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test "reading content by env key" do
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FileUtils.rm_rf @key_path
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begin
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ENV["CONTENT_KEY"] = ActiveSupport::EncryptedFile.generate_key
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@encrypted_file.write @content
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assert_equal @content, @encrypted_file.read
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ensure
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ENV["CONTENT_KEY"] = nil
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end
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end
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test "reading content by key file" do
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@encrypted_file.write(@content)
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assert_equal @content, @encrypted_file.read
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end
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test "change content by key file" do
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@encrypted_file.write(@content)
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@encrypted_file.change do |file|
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file.write(file.read + " and went by the lake")
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end
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assert_equal "#{@content} and went by the lake", @encrypted_file.read
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end
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test "raise MissingKeyError when key is missing" do
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assert_raise ActiveSupport::EncryptedFile::MissingKeyError do
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encrypted_file(@content_path, key_path: "", env_key: "").read
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end
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end
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test "raise MissingKeyError when env key is blank" do
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FileUtils.rm_rf @key_path
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begin
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ENV["CONTENT_KEY"] = ""
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raised = assert_raise ActiveSupport::EncryptedFile::MissingKeyError do
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@encrypted_file.write @content
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@encrypted_file.read
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end
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assert_match(/Missing encryption key to decrypt file/, raised.message)
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ensure
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ENV["CONTENT_KEY"] = nil
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end
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end
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test "raise InvalidKeyLengthError when key is too short" do
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File.write(@key_path, ActiveSupport::EncryptedFile.generate_key[0..-2])
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assert_raise ActiveSupport::EncryptedFile::InvalidKeyLengthError do
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@encrypted_file.write(@content)
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end
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end
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test "raise InvalidKeyLengthError when key is too long" do
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File.write(@key_path, ActiveSupport::EncryptedFile.generate_key + "0")
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assert_raise ActiveSupport::EncryptedFile::InvalidKeyLengthError do
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@encrypted_file.write(@content)
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end
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end
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test "respects existing content_path symlink" do
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@encrypted_file.write(@content)
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symlink_path = File.join(@tmpdir, "content_symlink.txt.enc")
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File.symlink(@encrypted_file.content_path, symlink_path)
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encrypted_file(symlink_path).write(@content)
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assert File.symlink?(symlink_path)
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assert_equal @content, @encrypted_file.read
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ensure
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FileUtils.rm_rf symlink_path
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end
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test "creates new content_path symlink if it's dead" do
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symlink_path = File.join(@tmpdir, "content_symlink.txt.enc")
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File.symlink(@content_path, symlink_path)
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encrypted_file(symlink_path).write(@content)
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assert File.exist?(@content_path)
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assert_equal @content, @encrypted_file.read
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ensure
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FileUtils.rm_rf symlink_path
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end
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private
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def encrypted_file(content_path, key_path: @key_path, env_key: "CONTENT_KEY")
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ActiveSupport::EncryptedFile.new(content_path: @content_path, key_path: key_path,
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env_key: env_key, raise_if_missing_key: true)
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end
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end
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