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# encoding: utf-8
require "cases/helper"
require 'active_record/base'
require 'active_record/connection_adapters/postgresql_adapter'
class PostgresqlJSONTest < ActiveRecord::TestCase
class JsonDataType < ActiveRecord::Base
self.table_name = 'json_data_type'
store_accessor :settings, :resolution
end
def setup
@connection = ActiveRecord::Base.connection
begin
@connection.transaction do
@connection.create_table('json_data_type') do |t|
t.json 'payload', :default => {}
t.json 'settings'
end
end
rescue ActiveRecord::StatementInvalid
skip "do not test on PG without json"
end
@column = JsonDataType.columns_hash['payload']
end
teardown do
@connection.execute 'drop table if exists json_data_type'
end
def test_column
column = JsonDataType.columns_hash["payload"]
assert_equal :json, column.type
assert_equal "json", column.sql_type
assert_not column.number?
assert_not column.text?
assert_not column.binary?
assert_not column.array
end
def test_default
@connection.add_column 'json_data_type', 'permissions', :json, default: '{"users": "read", "posts": ["read", "write"]}'
JsonDataType.reset_column_information
column = JsonDataType.columns_hash["permissions"]
assert_equal({"users"=>"read", "posts"=>["read", "write"]}, column.default)
assert_equal({"users"=>"read", "posts"=>["read", "write"]}, JsonDataType.new.permissions)
ensure
JsonDataType.reset_column_information
end
def test_change_table_supports_json
@connection.transaction do
@connection.change_table('json_data_type') do |t|
t.json 'users', default: '{}'
end
JsonDataType.reset_column_information
column = JsonDataType.columns_hash['users']
assert_equal :json, column.type
raise ActiveRecord::Rollback # reset the schema change
end
ensure
JsonDataType.reset_column_information
end
def test_cast_value_on_write
x = JsonDataType.new payload: {"string" => "foo", :symbol => :bar}
assert_equal({"string" => "foo", :symbol => :bar}, x.payload_before_type_cast)
assert_equal({"string" => "foo", "symbol" => "bar"}, x.payload)
x.save
assert_equal({"string" => "foo", "symbol" => "bar"}, x.reload.payload)
end
def test_type_cast_json
column = JsonDataType.columns_hash["payload"]
data = "{\"a_key\":\"a_value\"}"
hash = column.class.string_to_json data
assert_equal({'a_key' => 'a_value'}, hash)
assert_equal({'a_key' => 'a_value'}, column.type_cast_from_database(data))
assert_equal({}, column.type_cast_from_database("{}"))
assert_equal({'key'=>nil}, column.type_cast_from_database('{"key": null}'))
assert_equal({'c'=>'}','"a"'=>'b "a b'}, column.type_cast_from_database(%q({"c":"}", "\"a\"":"b \"a b"})))
end
def test_rewrite
@connection.execute "insert into json_data_type (payload) VALUES ('{\"k\":\"v\"}')"
x = JsonDataType.first
x.payload = { '"a\'' => 'b' }
assert x.save!
end
def test_select
@connection.execute "insert into json_data_type (payload) VALUES ('{\"k\":\"v\"}')"
x = JsonDataType.first
assert_equal({'k' => 'v'}, x.payload)
end
def test_select_multikey
@connection.execute %q|insert into json_data_type (payload) VALUES ('{"k1":"v1", "k2":"v2", "k3":[1,2,3]}')|
x = JsonDataType.first
assert_equal({'k1' => 'v1', 'k2' => 'v2', 'k3' => [1,2,3]}, x.payload)
end
def test_null_json
@connection.execute %q|insert into json_data_type (payload) VALUES(null)|
x = JsonDataType.first
assert_equal(nil, x.payload)
end
def test_select_array_json_value
@connection.execute %q|insert into json_data_type (payload) VALUES ('["v0",{"k1":"v1"}]')|
x = JsonDataType.first
assert_equal(['v0', {'k1' => 'v1'}], x.payload)
end
def test_rewrite_array_json_value
@connection.execute %q|insert into json_data_type (payload) VALUES ('["v0",{"k1":"v1"}]')|
x = JsonDataType.first
x.payload = ['v1', {'k2' => 'v2'}, 'v3']
assert x.save!
end
def test_with_store_accessors
x = JsonDataType.new(resolution: "320×480")
assert_equal "320×480", x.resolution
x.save!
x = JsonDataType.first
assert_equal "320×480", x.resolution
x.resolution = "640×1136"
x.save!
x = JsonDataType.first
assert_equal "640×1136", x.resolution
end
def test_duplication_with_store_accessors
x = JsonDataType.new(resolution: "320×480")
assert_equal "320×480", x.resolution
y = x.dup
assert_equal "320×480", y.resolution
end
def test_yaml_round_trip_with_store_accessors
x = JsonDataType.new(resolution: "320×480")
assert_equal "320×480", x.resolution
y = YAML.load(YAML.dump(x))
assert_equal "320×480", y.resolution
end
def test_update_all
json = JsonDataType.create! payload: { "one" => "two" }
JsonDataType.update_all payload: { "three" => "four" }
assert_equal({ "three" => "four" }, json.reload.payload)
JsonDataType.update_all payload: { }
assert_equal({ }, json.reload.payload)
end
end
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