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require "cases/helper"
require "support/schema_dumping_helper"
module PostgresqlJSONSharedTestCases
include SchemaDumpingHelper
class JsonDataType < ActiveRecord::Base
self.table_name = "json_data_type"
store_accessor :settings, :resolution
end
def setup
@connection = ActiveRecord::Base.connection
begin
@connection.create_table("json_data_type") do |t|
t.public_send column_type, "payload", default: {} # t.json 'payload', default: {}
t.public_send column_type, "settings" # t.json 'settings'
end
rescue ActiveRecord::StatementInvalid
skip "do not test on PostgreSQL without #{column_type} type."
end
end
def teardown
@connection.drop_table :json_data_type, if_exists: true
JsonDataType.reset_column_information
end
def test_column
column = JsonDataType.columns_hash["payload"]
assert_equal column_type, column.type
assert_equal column_type.to_s, column.sql_type
assert_not column.array?
type = JsonDataType.type_for_attribute("payload")
assert_not type.binary?
end
def test_default
@connection.add_column "json_data_type", "permissions", column_type, default: { "users": "read", "posts": ["read", "write"] }
JsonDataType.reset_column_information
assert_equal({ "users"=>"read", "posts"=>["read", "write"] }, JsonDataType.column_defaults["permissions"])
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.public_send column_type, "users", default: "{}" # t.json 'users', default: '{}'
end
JsonDataType.reset_column_information
column = JsonDataType.columns_hash["users"]
assert_equal column_type, column.type
raise ActiveRecord::Rollback # reset the schema change
end
ensure
JsonDataType.reset_column_information
end
def test_schema_dumping
output = dump_table_schema("json_data_type")
assert_match(/t\.#{column_type.to_s}\s+"payload",\s+default: {}/, output)
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
type = JsonDataType.type_for_attribute("payload")
data = "{\"a_key\":\"a_value\"}"
hash = type.deserialize(data)
assert_equal({ "a_key" => "a_value" }, hash)
assert_equal({ "a_key" => "a_value" }, type.deserialize(data))
assert_equal({}, type.deserialize("{}"))
assert_equal({ "key"=>nil }, type.deserialize('{"key": null}'))
assert_equal({ "c"=>"}",'"a"'=>'b "a b' }, type.deserialize(%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 "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_changes_in_place
json = JsonDataType.new
assert_not json.changed?
json.payload = { "one" => "two" }
assert json.changed?
assert json.payload_changed?
json.save!
assert_not json.changed?
json.payload["three"] = "four"
assert json.payload_changed?
json.save!
json.reload
assert_equal({ "one" => "two", "three" => "four" }, json.payload)
assert_not json.changed?
end
def test_assigning_string_literal
json = JsonDataType.create(payload: "foo")
assert_equal "foo", json.payload
end
def test_assigning_number
json = JsonDataType.create(payload: 1.234)
assert_equal 1.234, json.payload
end
def test_assigning_boolean
json = JsonDataType.create(payload: true)
assert_equal true, json.payload
end
end
class PostgresqlJSONTest < ActiveRecord::PostgreSQLTestCase
include PostgresqlJSONSharedTestCases
def column_type
:json
end
end
class PostgresqlJSONBTest < ActiveRecord::PostgreSQLTestCase
include PostgresqlJSONSharedTestCases
def column_type
:jsonb
end
end
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