54 lines
1.7 KiB
Ruby
54 lines
1.7 KiB
Ruby
module DispatcherExamples
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RSpec.shared_examples 'a dispatcher handling concurrent streams' do
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it 'spawns multiple streams in threads, triggering callbacks only once' do
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disconnects = []
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dispatcher = Datastar
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.new(request:, response:, executor:)
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.on_server_disconnect { |_| disconnects << true }
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.on_error { |err| puts err.backtrace.join("\n") }
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dispatcher.stream do |sse|
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sleep 0.01
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sse.merge_fragments %(<div id="foo">\n<span>hello</span>\n</div>\n)
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end
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dispatcher.stream do |sse|
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sse.merge_signals(foo: 'bar')
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end
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socket = TestSocket.new
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dispatcher.response.body.call(socket)
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expect(socket.open).to be(false)
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expect(socket.lines.size).to eq(2)
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expect(socket.lines[0]).to eq("event: datastar-merge-signals\ndata: signals {\"foo\":\"bar\"}\n\n\n")
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expect(socket.lines[1]).to eq("event: datastar-merge-fragments\ndata: fragments <div id=\"foo\">\ndata: fragments <span>hello</span>\ndata: fragments </div>\n\n\n")
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expect(disconnects).to eq([true])
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end
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it 'catches exceptions raised from threads' do
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Thread.report_on_exception = false
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errs = []
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dispatcher = Datastar
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.new(request:, response:, executor:)
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.on_error { |err| errs << err }
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dispatcher.stream do |sse|
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sleep 0.01
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raise ArgumentError, 'Invalid argument'
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end
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dispatcher.stream do |sse|
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sse.merge_signals(foo: 'bar')
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end
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socket = TestSocket.new
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dispatcher.response.body.call(socket)
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expect(errs.first).to be_a(ArgumentError)
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Thread.report_on_exception = true
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end
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end
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end
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