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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
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