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106 lines
3.7 KiB
Ruby
106 lines
3.7 KiB
Ruby
require 'active_support/test_case'
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module ActiveRecord
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# = Active Record Test Case
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#
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# Defines some test assertions to test against SQL queries.
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class TestCase < ActiveSupport::TestCase #:nodoc:
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def teardown
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SQLCounter.clear_log
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end
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def assert_date_from_db(expected, actual, message = nil)
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assert_equal expected.to_s, actual.to_s, message
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end
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def capture_sql
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SQLCounter.clear_log
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yield
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SQLCounter.log_all.dup
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end
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def assert_sql(*patterns_to_match)
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capture_sql { yield }
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ensure
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failed_patterns = []
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patterns_to_match.each do |pattern|
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failed_patterns << pattern unless SQLCounter.log_all.any?{ |sql| pattern === sql }
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end
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assert failed_patterns.empty?, "Query pattern(s) #{failed_patterns.map{ |p| p.inspect }.join(', ')} not found.#{SQLCounter.log.size == 0 ? '' : "\nQueries:\n#{SQLCounter.log.join("\n")}"}"
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end
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def assert_queries(num = 1, options = {})
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ignore_none = options.fetch(:ignore_none) { num == :any }
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SQLCounter.clear_log
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x = yield
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the_log = ignore_none ? SQLCounter.log_all : SQLCounter.log
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if num == :any
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assert_operator the_log.size, :>=, 1, "1 or more queries expected, but none were executed."
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else
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mesg = "#{the_log.size} instead of #{num} queries were executed.#{the_log.size == 0 ? '' : "\nQueries:\n#{the_log.join("\n")}"}"
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assert_equal num, the_log.size, mesg
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end
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x
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end
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def assert_no_queries(options = {}, &block)
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options.reverse_merge! ignore_none: true
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assert_queries(0, options, &block)
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end
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def assert_column(model, column_name, msg=nil)
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assert has_column?(model, column_name), msg
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end
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def assert_no_column(model, column_name, msg=nil)
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assert_not has_column?(model, column_name), msg
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end
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def has_column?(model, column_name)
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model.reset_column_information
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model.column_names.include?(column_name.to_s)
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end
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end
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class SQLCounter
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class << self
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attr_accessor :ignored_sql, :log, :log_all
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def clear_log; self.log = []; self.log_all = []; end
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end
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self.clear_log
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self.ignored_sql = [/^PRAGMA/, /^SELECT currval/, /^SELECT CAST/, /^SELECT @@IDENTITY/, /^SELECT @@ROWCOUNT/, /^SAVEPOINT/, /^ROLLBACK TO SAVEPOINT/, /^RELEASE SAVEPOINT/, /^SHOW max_identifier_length/, /^BEGIN/, /^COMMIT/]
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# FIXME: this needs to be refactored so specific database can add their own
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# ignored SQL, or better yet, use a different notification for the queries
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# instead examining the SQL content.
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oracle_ignored = [/^select .*nextval/i, /^SAVEPOINT/, /^ROLLBACK TO/, /^\s*select .* from all_triggers/im, /^\s*select .* from all_constraints/im, /^\s*select .* from all_tab_cols/im]
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mysql_ignored = [/^SHOW TABLES/i, /^SHOW FULL FIELDS/, /^SHOW CREATE TABLE /i]
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postgresql_ignored = [/^\s*select\b.*\bfrom\b.*pg_namespace\b/im, /^\s*select\b.*\battname\b.*\bfrom\b.*\bpg_attribute\b/im, /^SHOW search_path/i]
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sqlite3_ignored = [/^\s*SELECT name\b.*\bFROM sqlite_master/im]
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[oracle_ignored, mysql_ignored, postgresql_ignored, sqlite3_ignored].each do |db_ignored_sql|
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ignored_sql.concat db_ignored_sql
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end
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attr_reader :ignore
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def initialize(ignore = Regexp.union(self.class.ignored_sql))
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@ignore = ignore
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end
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def call(name, start, finish, message_id, values)
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sql = values[:sql]
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# FIXME: this seems bad. we should probably have a better way to indicate
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# the query was cached
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return if 'CACHE' == values[:name]
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self.class.log_all << sql
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self.class.log << sql unless ignore =~ sql
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end
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end
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ActiveSupport::Notifications.subscribe('sql.active_record', SQLCounter.new)
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end
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