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require_relative "spec_helper"
describe "query_blocker extension" do
fiber_is_thread = RUBY_ENGINE == 'jruby' && Fiber.new{Thread.current}.resume != Thread.current
before do
@db = Sequel.mock(:extensions=>[:query_blocker])
@ds = @db[:items]
end
it "#block_queries should block queries globally inside the block when called without options" do
@ds.all.must_equal []
proc{@db.block_queries{@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries{Thread.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.join}
@ds.all.must_equal []
end
it "#block_queries should block queries globally inside the block when called with scope: :global" do
@ds.all.must_equal []
proc{@db.block_queries(:scope=>:global){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:global){Thread.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.join}
@ds.all.must_equal []
end
it "#block_queries should block queries inside the current thread when called with scope: :thread" do
@ds.all.must_equal []
proc{@db.block_queries(:scope=>:thread){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:thread){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:thread){Fiber.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.resume} unless fiber_is_thread
@ds.all.must_equal []
end
it "#block_queries should block queries inside the current fiber when called with scope: :fiber" do
@ds.all.must_equal []
proc{@db.block_queries(:scope=>:fiber){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:fiber){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:fiber){Fiber.new{@ds.all}.resume}.must_equal []
@ds.all.must_equal []
end
it "#block_queries should block queries inside the given thread when called with scope: Thread" do
@ds.all.must_equal []
proc{@db.block_queries(:scope=>Thread.current){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>Thread.current){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>Thread.current){Fiber.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.resume} unless fiber_is_thread
@ds.all.must_equal []
end
it "#block_queries should block queries inside the given fiber when called with scope: Fiber" do
@ds.all.must_equal []
proc{@db.block_queries(:scope=>Fiber.current){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>Fiber.current){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>Fiber.current){Fiber.new{@ds.all}.resume}.must_equal []
@ds.all.must_equal []
end
it "#block_queries should raise Error if called with unsupported :scope option" do
proc{@db.block_queries(:scope=>Object.new){}}.must_raise Sequel::Error
end
it "#block_queries should handle nested usage" do
@ds.all.must_equal []
Thread.new{@ds.all}.value.must_equal []
Fiber.new{@ds.all}.resume.must_equal []
@db.block_queries(scope: :fiber) do
proc{@db.block_queries(:scope=>:fiber){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:fiber){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:fiber){Fiber.new{@ds.all}.resume}.must_equal []
@db.block_queries(scope: :fiber) do
proc{@db.block_queries(:scope=>:fiber){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:fiber){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:fiber){Fiber.new{@ds.all}.resume}.must_equal []
end
@db.block_queries(scope: :thread) do
proc{@db.block_queries(:scope=>:thread){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:thread){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:thread){Fiber.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.resume} unless fiber_is_thread
@db.block_queries(scope: :thread) do
proc{@db.block_queries(:scope=>:thread){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:thread){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:thread){Fiber.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.resume} unless fiber_is_thread
end
@db.block_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
proc{@db.block_queries{@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries{Thread.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.join}
@db.block_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
proc{@db.block_queries{@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries{Thread.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.join}
end
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
proc{@db.block_queries{@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries{Thread.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.join}
end
proc{@db.block_queries(:scope=>:thread){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:thread){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:thread){Fiber.new{assert_raises(Sequel::QueryBlocker::BlockedQuery){@ds.all}}.resume} unless fiber_is_thread
end
proc{@db.block_queries(:scope=>:fiber){@ds.all}}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.block_queries(:scope=>:fiber){Thread.new{@ds.all}.value}.must_equal []
@db.block_queries(:scope=>:fiber){Fiber.new{@ds.all}.resume}.must_equal []
end
@ds.all.must_equal []
Thread.new{@ds.all}.value.must_equal []
Fiber.new{@ds.all}.resume.must_equal []
end
it "#block_queries? should check whether queries are currently blocked" do
@db.block_queries?.must_equal false
@db.block_queries{@db.block_queries?}.must_equal true
@db.block_queries?.must_equal false
end
it "#allow_queries should work outside a block_queries block" do
@ds.all.must_equal []
@db.allow_queries{@ds.all}.must_equal []
end
it "#allow_queries should allow_queries inside a block_queries block" do
@ds.all.must_equal []
@db.block_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
@db.allow_queries do
@ds.all.must_equal []
end
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@ds.all.must_equal []
end
it "scoping priority for #block_queries and #allow_queries should be fiber, thread, global, in that order" do
@db.block_queries do
@db.allow_queries(:scope=>:fiber) do
@ds.all.must_equal []
end
@db.allow_queries(:scope=>:thread) do
@ds.all.must_equal []
end
@db.allow_queries do
@ds.all.must_equal []
end
end
@db.block_queries(:scope=>:thread) do
@db.allow_queries(:scope=>:fiber) do
@ds.all.must_equal []
end
@db.allow_queries(:scope=>:thread) do
@ds.all.must_equal []
end
@db.allow_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
end
@db.block_queries(:scope=>:fiber) do
@db.allow_queries(:scope=>:fiber) do
@ds.all.must_equal []
end
@db.allow_queries(:scope=>:thread) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.allow_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
end
@db.allow_queries do
@db.block_queries(:scope=>:fiber) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.block_queries(:scope=>:thread) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.block_queries do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
end
@db.allow_queries(:scope=>:thread) do
@db.block_queries(:scope=>:fiber) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.block_queries(:scope=>:thread) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.block_queries do
@ds.all.must_equal []
end
end
@db.allow_queries(:scope=>:fiber) do
@db.block_queries(:scope=>:fiber) do
proc{@ds.all}.must_raise Sequel::QueryBlocker::BlockedQuery
end
@db.block_queries(:scope=>:thread) do
@ds.all.must_equal []
end
@db.block_queries do
@ds.all.must_equal []
end
end
end
it "#valid_connection should return true when blocking queries" do
@db.block_queries do
@db.synchronize do |c|
@db.valid_connection?(c).must_equal true
end
end
end
end
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