diff options
Diffstat (limited to 'activerecord/test/cases/defaults_test.rb')
| -rw-r--r-- | activerecord/test/cases/defaults_test.rb | 98 |
1 files changed, 36 insertions, 62 deletions
diff --git a/activerecord/test/cases/defaults_test.rb b/activerecord/test/cases/defaults_test.rb index 067513e24c..fcaff38f82 100644 --- a/activerecord/test/cases/defaults_test.rb +++ b/activerecord/test/cases/defaults_test.rb @@ -1,7 +1,7 @@ require "cases/helper" -require 'support/schema_dumping_helper' -require 'models/default' -require 'models/entrant' +require "support/schema_dumping_helper" +require "models/default" +require "models/entrant" class DefaultTest < ActiveRecord::TestCase def test_nil_defaults_for_not_null_columns @@ -99,7 +99,7 @@ if current_adapter?(:Mysql2Adapter) class MysqlDefaultExpressionTest < ActiveRecord::TestCase include SchemaDumpingHelper - if ActiveRecord::Base.connection.version >= '5.6.0' + 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 @@ -127,92 +127,66 @@ if current_adapter?(:Mysql2Adapter) ActiveRecord::Base.establish_connection connection end - # MySQL cannot have defaults on text/blob columns. It reports the - # default value as null. + # 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.) # - # Despite this, in non-strict mode, MySQL will use an empty string - # as the default value of the field, if no other value is - # specified. + # 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. # - # Therefore, in non-strict mode, we want column.default to report - # an empty string as its default, to be consistent with that. - # - # In strict mode, column.default should be nil. - def test_mysql_text_not_null_defaults_non_strict + # 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_text_blob_not_null_table do |klass| + with_mysql_not_null_table do |klass| record = klass.new - assert_equal '', record.non_null_blob - assert_equal '', record.non_null_text - - assert_nil record.null_blob - assert_nil record.null_text + 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 '', record.non_null_text - assert_equal '', record.non_null_blob - - assert_nil record.null_text - assert_nil record.null_blob + 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_text_not_null_defaults_strict + def test_mysql_not_null_defaults_strict using_strict(true) do - with_text_blob_not_null_table do |klass| + with_mysql_not_null_table do |klass| record = klass.new - assert_nil record.non_null_blob + assert_nil record.non_null_integer + assert_nil record.non_null_string assert_nil record.non_null_text - assert_nil record.null_blob - assert_nil record.null_text + assert_nil record.non_null_blob assert_raises(ActiveRecord::StatementInvalid) { klass.create } end end end - def with_text_blob_not_null_table + def with_mysql_not_null_table klass = Class.new(ActiveRecord::Base) - klass.table_name = 'test_mysql_text_not_null_defaults' + klass.table_name = "test_mysql_not_null_defaults" klass.connection.create_table klass.table_name do |t| - t.column :non_null_text, :text, :null => false - t.column :non_null_blob, :blob, :null => false - t.column :null_text, :text, :null => true - t.column :null_blob, :blob, :null => true + 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 - - # MySQL uses an implicit default 0 rather than NULL unless in strict mode. - # We use an implicit NULL so schema.rb is compatible with other databases. - def test_mysql_integer_not_null_defaults - klass = Class.new(ActiveRecord::Base) - klass.table_name = 'test_integer_not_null_default_zero' - klass.connection.create_table klass.table_name do |t| - t.column :zero, :integer, :null => false, :default => 0 - t.column :omit, :integer, :null => false - end - - assert_equal '0', klass.columns_hash['zero'].default - assert !klass.columns_hash['zero'].null - assert_equal nil, klass.columns_hash['omit'].default - assert !klass.columns_hash['omit'].null - - assert_raise(ActiveRecord::StatementInvalid) { klass.create! } - - assert_nothing_raised do - instance = klass.create!(:omit => 1) - assert_equal 0, instance.zero - assert_equal 1, instance.omit - end - ensure - klass.connection.drop_table(klass.table_name) rescue nil - end end end |