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require "cases/helper"
require "support/schema_dumping_helper"
require "models/default"
require "models/entrant"
class DefaultTest < ActiveRecord::TestCase
def test_nil_defaults_for_not_null_columns
%w(id name course_id).each do |name|
column = Entrant.columns_hash[name]
assert !column.null, "#{name} column should be NOT NULL"
assert_not column.default, "#{name} column should be DEFAULT 'nil'"
end
end
if current_adapter?(:PostgreSQLAdapter)
def test_multiline_default_text
record = Default.new
# older postgres versions represent the default with escapes ("\\012" for a newline)
assert("--- []\n\n" == record.multiline_default || "--- []\\012\\012" == record.multiline_default)
end
end
end
class DefaultNumbersTest < ActiveRecord::TestCase
class DefaultNumber < ActiveRecord::Base; end
setup do
@connection = ActiveRecord::Base.connection
@connection.create_table :default_numbers do |t|
t.integer :positive_integer, default: 7
t.integer :negative_integer, default: -5
t.decimal :decimal_number, default: "2.78", precision: 5, scale: 2
end
end
teardown do
@connection.drop_table :default_numbers, if_exists: true
end
def test_default_positive_integer
record = DefaultNumber.new
assert_equal 7, record.positive_integer
assert_equal "7", record.positive_integer_before_type_cast
end
def test_default_negative_integer
record = DefaultNumber.new
assert_equal (-5), record.negative_integer
assert_equal "-5", record.negative_integer_before_type_cast
end
def test_default_decimal_number
record = DefaultNumber.new
assert_equal BigDecimal.new("2.78"), record.decimal_number
assert_equal "2.78", record.decimal_number_before_type_cast
end
end
class DefaultStringsTest < ActiveRecord::TestCase
class DefaultString < ActiveRecord::Base; end
setup do
@connection = ActiveRecord::Base.connection
@connection.create_table :default_strings do |t|
t.string :string_col, default: "Smith"
t.string :string_col_with_quotes, default: "O'Connor"
end
DefaultString.reset_column_information
end
def test_default_strings
assert_equal "Smith", DefaultString.new.string_col
end
def test_default_strings_containing_single_quotes
assert_equal "O'Connor", DefaultString.new.string_col_with_quotes
end
teardown do
@connection.drop_table :default_strings
end
end
if current_adapter?(:PostgreSQLAdapter)
class PostgresqlDefaultExpressionTest < ActiveRecord::TestCase
include SchemaDumpingHelper
test "schema dump includes default expression" do
output = dump_table_schema("defaults")
assert_match %r/t\.date\s+"modified_date",\s+default: -> { "\('now'::text\)::date" }/, output
assert_match %r/t\.date\s+"modified_date_function",\s+default: -> { "now\(\)" }/, output
assert_match %r/t\.datetime\s+"modified_time",\s+default: -> { "now\(\)" }/, output
assert_match %r/t\.datetime\s+"modified_time_function",\s+default: -> { "now\(\)" }/, output
end
end
end
if current_adapter?(:Mysql2Adapter)
class MysqlDefaultExpressionTest < ActiveRecord::TestCase
include SchemaDumpingHelper
if ActiveRecord::Base.connection.version >= "5.6.0"
test "schema dump includes default expression" do
output = dump_table_schema("datetime_defaults")
assert_match %r/t\.datetime\s+"modified_datetime",\s+default: -> { "CURRENT_TIMESTAMP" }/, output
end
end
end
class DefaultsTestWithoutTransactionalFixtures < ActiveRecord::TestCase
# ActiveRecord::Base#create! (and #save and other related methods) will
# open a new transaction. When in transactional tests mode, this will
# cause Active Record to create a new savepoint. However, since MySQL doesn't
# support DDL transactions, creating a table will result in any created
# savepoints to be automatically released. This in turn causes the savepoint
# release code in AbstractAdapter#transaction to fail.
#
# We don't want that to happen, so we disable transactional tests here.
self.use_transactional_tests = false
def using_strict(strict)
connection = ActiveRecord::Base.remove_connection
ActiveRecord::Base.establish_connection connection.merge(strict: strict)
yield
ensure
ActiveRecord::Base.remove_connection
ActiveRecord::Base.establish_connection connection
end
# Strict mode controls how MySQL handles invalid or missing values
# in data-change statements such as INSERT or UPDATE. A value can be
# invalid for several reasons. For example, it might have the wrong
# data type for the column, or it might be out of range. A value is
# missing when a new row to be inserted does not contain a value for
# a non-NULL column that has no explicit DEFAULT clause in its definition.
# (For a NULL column, NULL is inserted if the value is missing.)
#
# If strict mode is not in effect, MySQL inserts adjusted values for
# invalid or missing values and produces warnings. In strict mode,
# you can produce this behavior by using INSERT IGNORE or UPDATE IGNORE.
#
# https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sql-mode-strict
def test_mysql_not_null_defaults_non_strict
using_strict(false) do
with_mysql_not_null_table do |klass|
record = klass.new
assert_nil record.non_null_integer
assert_nil record.non_null_string
assert_nil record.non_null_text
assert_nil record.non_null_blob
record.save!
record.reload
assert_equal 0, record.non_null_integer
assert_equal "", record.non_null_string
assert_equal "", record.non_null_text
assert_equal "", record.non_null_blob
end
end
end
def test_mysql_not_null_defaults_strict
using_strict(true) do
with_mysql_not_null_table do |klass|
record = klass.new
assert_nil record.non_null_integer
assert_nil record.non_null_string
assert_nil record.non_null_text
assert_nil record.non_null_blob
assert_raises(ActiveRecord::NotNullViolation) { klass.create }
end
end
end
def with_mysql_not_null_table
klass = Class.new(ActiveRecord::Base)
klass.table_name = "test_mysql_not_null_defaults"
klass.connection.create_table klass.table_name do |t|
t.integer :non_null_integer, null: false
t.string :non_null_string, null: false
t.text :non_null_text, null: false
t.blob :non_null_blob, null: false
end
yield klass
ensure
klass.connection.drop_table(klass.table_name) rescue nil
end
end
end
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