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require "cases/helper"
module ActiveRecord
module ConnectionAdapters
class ColumnDefinitionTest < ActiveRecord::TestCase
def setup
@adapter = AbstractAdapter.new(nil)
def @adapter.native_database_types
{:string => "varchar"}
end
@viz = @adapter.schema_creation
end
# Avoid column definitions in create table statements like:
# `title` varchar(255) DEFAULT NULL
def test_should_not_include_default_clause_when_default_is_null
column = Column.new("title", nil, SqlTypeMetadata.new(limit: 20))
column_def = ColumnDefinition.new(
column.name, "string",
column.limit, column.precision, column.scale, column.default, column.null)
assert_equal "title varchar(20)", @viz.accept(column_def)
end
def test_should_include_default_clause_when_default_is_present
column = Column.new("title", "Hello", SqlTypeMetadata.new(limit: 20))
column_def = ColumnDefinition.new(
column.name, "string",
column.limit, column.precision, column.scale, column.default, column.null)
assert_equal %Q{title varchar(20) DEFAULT 'Hello'}, @viz.accept(column_def)
end
def test_should_specify_not_null_if_null_option_is_false
type_metadata = SqlTypeMetadata.new(limit: 20)
column = Column.new("title", "Hello", type_metadata, false)
column_def = ColumnDefinition.new(
column.name, "string",
column.limit, column.precision, column.scale, column.default, column.null)
assert_equal %Q{title varchar(20) DEFAULT 'Hello' NOT NULL}, @viz.accept(column_def)
end
if current_adapter?(:Mysql2Adapter)
def test_should_set_default_for_mysql_binary_data_types
type = SqlTypeMetadata.new(type: :binary, sql_type: "binary(1)")
binary_column = MySQL::Column.new("title", "a", type)
assert_equal "a", binary_column.default
type = SqlTypeMetadata.new(type: :binary, sql_type: "varbinary")
varbinary_column = MySQL::Column.new("title", "a", type)
assert_equal "a", varbinary_column.default
end
def test_should_be_empty_string_default_for_mysql_binary_data_types
type = SqlTypeMetadata.new(type: :binary, sql_type: "binary(1)")
binary_column = MySQL::Column.new("title", "", type, false)
assert_equal "", binary_column.default
type = SqlTypeMetadata.new(type: :binary, sql_type: "varbinary")
varbinary_column = MySQL::Column.new("title", "", type, false)
assert_equal "", varbinary_column.default
end
def test_should_not_set_default_for_blob_and_text_data_types
assert_raise ArgumentError do
MySQL::Column.new("title", "a", SqlTypeMetadata.new(sql_type: "blob"))
end
text_type = MySQL::TypeMetadata.new(
SqlTypeMetadata.new(type: :text))
assert_raise ArgumentError do
MySQL::Column.new("title", "Hello", text_type)
end
text_column = MySQL::Column.new("title", nil, text_type)
assert_equal nil, text_column.default
not_null_text_column = MySQL::Column.new("title", nil, text_type, false)
assert_equal "", not_null_text_column.default
end
def test_has_default_should_return_false_for_blob_and_text_data_types
binary_type = SqlTypeMetadata.new(sql_type: "blob")
blob_column = MySQL::Column.new("title", nil, binary_type)
assert !blob_column.has_default?
text_type = SqlTypeMetadata.new(type: :text)
text_column = MySQL::Column.new("title", nil, text_type)
assert !text_column.has_default?
end
end
end
end
end
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