require "cases/helper" module ActiveRecord module Coders class YAMLColumnTest < ActiveRecord::TestCase def test_initialize_takes_class coder = YAMLColumn.new("attr_name", Object) assert_equal Object, coder.object_class end def test_type_mismatch_on_different_classes_on_dump coder = YAMLColumn.new("tags", Array) error = assert_raises(SerializationTypeMismatch) do coder.dump("a") end assert_equal %{can't dump `tags`: was supposed to be a Array, but was a String. -- "a"}, error.to_s end def test_type_mismatch_on_different_classes coder = YAMLColumn.new("tags", Array) error = assert_raises(SerializationTypeMismatch) do coder.load "--- foo" end assert_equal %{can't load `tags`: was supposed to be a Array, but was a String. -- "foo"}, error.to_s end def test_nil_is_ok coder = YAMLColumn.new("attr_name") assert_nil coder.load "--- " end def test_returns_new_with_different_class coder = YAMLColumn.new("attr_name", SerializationTypeMismatch) assert_equal SerializationTypeMismatch, coder.load("--- ").class end def test_returns_string_unless_starts_with_dash coder = YAMLColumn.new("attr_name") assert_equal "foo", coder.load("foo") end def test_load_handles_other_classes coder = YAMLColumn.new("attr_name") assert_equal [], coder.load([]) end def test_load_doesnt_swallow_yaml_exceptions coder = YAMLColumn.new("attr_name") bad_yaml = "--- {" assert_raises(Psych::SyntaxError) do coder.load(bad_yaml) end end def test_load_doesnt_handle_undefined_class_or_module coder = YAMLColumn.new("attr_name") missing_class_yaml = '--- !ruby/object:DoesNotExistAndShouldntEver {}\n' assert_raises(ArgumentError) do coder.load(missing_class_yaml) end end end end end