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require "cases/helper"
require 'models/default'
require 'models/post'
require 'models/task'
class SqlServerAdapterTest < ActiveRecord::TestCase
class TableWithRealColumn < ActiveRecord::Base; end
fixtures :posts, :tasks
def setup
@connection = ActiveRecord::Base.connection
end
def teardown
@connection.execute("SET LANGUAGE us_english") rescue nil
end
def test_real_column_has_float_type
assert_equal :float, TableWithRealColumn.columns_hash["real_number"].type
end
# SQL Server 2000 has a bug where some unambiguous date formats are not
# correctly identified if the session language is set to german
def test_date_insertion_when_language_is_german
@connection.execute("SET LANGUAGE deutsch")
assert_nothing_raised do
Task.create(:starting => Time.utc(2000, 1, 31, 5, 42, 0), :ending => Date.new(2006, 12, 31))
end
end
def test_indexes_with_descending_order
# Make sure we have an index with descending order
@connection.execute "CREATE INDEX idx_credit_limit ON accounts (credit_limit DESC)" rescue nil
assert_equal ["credit_limit"], @connection.indexes('accounts').first.columns
ensure
@connection.execute "DROP INDEX accounts.idx_credit_limit"
end
def test_execute_without_block_closes_statement
assert_all_statements_used_are_closed do
@connection.execute("SELECT 1")
end
end
def test_execute_with_block_closes_statement
assert_all_statements_used_are_closed do
@connection.execute("SELECT 1") do |sth|
assert !sth.finished?, "Statement should still be alive within block"
end
end
end
def test_insert_with_identity_closes_statement
assert_all_statements_used_are_closed do
@connection.insert("INSERT INTO accounts ([id], [firm_id],[credit_limit]) values (999, 1, 50)")
end
end
def test_insert_without_identity_closes_statement
assert_all_statements_used_are_closed do
@connection.insert("INSERT INTO accounts ([firm_id],[credit_limit]) values (1, 50)")
end
end
def test_active_closes_statement
assert_all_statements_used_are_closed do
@connection.active?
end
end
def assert_all_statements_used_are_closed(&block)
existing_handles = []
ObjectSpace.each_object(DBI::StatementHandle) {|handle| existing_handles << handle}
GC.disable
yield
used_handles = []
ObjectSpace.each_object(DBI::StatementHandle) {|handle| used_handles << handle unless existing_handles.include? handle}
assert_block "No statements were used within given block" do
used_handles.size > 0
end
ObjectSpace.each_object(DBI::StatementHandle) do |handle|
assert_block "Statement should have been closed within given block" do
handle.finished?
end
end
ensure
GC.enable
end
end
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