diff options
Diffstat (limited to 'spec/support/matchers/query_matcher.rb')
-rw-r--r-- | spec/support/matchers/query_matcher.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/spec/support/matchers/query_matcher.rb b/spec/support/matchers/query_matcher.rb new file mode 100644 index 00000000000..ac8c4ab91d9 --- /dev/null +++ b/spec/support/matchers/query_matcher.rb @@ -0,0 +1,33 @@ +RSpec::Matchers.define :make_queries_matching do |matcher, expected_count = nil| + supports_block_expectations + + match do |block| + @counter = query_count(matcher, &block) + if expected_count + @counter.count == expected_count + else + @counter.count > 0 + end + end + + failure_message_when_negated do |_| + if expected_count + "expected #{matcher} not to match #{expected_count} queries, got #{@counter.count} matches:\n\n#{@counter.inspect}" + else + "expected #{matcher} not to match any query, got #{@counter.count} matches:\n\n#{@counter.inspect}" + end + end + + failure_message do |_| + if expected_count + "expected #{matcher} to match #{expected_count} queries, got #{@counter.count} matches:\n\n#{@counter.inspect}" + else + "expected #{matcher} to match at least one query, got #{@counter.count} matches:\n\n#{@counter.inspect}" + end + end + + def query_count(regex, &block) + @recorder = ActiveRecord::QueryRecorder.new(&block).log + @recorder.select{ |q| q.match(regex) } + end +end |