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# frozen_string_literal: true
require "guard/internals/debugging"
RSpec.describe Guard::Internals::Debugging do
let(:null) { IO::NULL }
let(:ui) { class_double(::Guard::UI) }
let(:tracing) { class_spy(::Guard::Internals::Tracing) }
before do
stub_const("::Guard::Internals::Tracing", tracing)
stub_const("::Guard::UI", ui)
allow(ui).to receive(:debug)
allow(ui).to receive(:level=)
allow(Thread).to receive(:abort_on_exception=)
end
after do
described_class.send(:_reset)
end
describe "#start" do
it "traces Kernel.system" do
expect(tracing).to receive(:trace).with(Kernel, :system) do |*_, &block|
expect(ui).to receive(:debug).with("Command execution: foo")
block.call "foo"
end
described_class.start
end
it "traces Kernel.`" do
expect(tracing).to receive(:trace).with(Kernel, :`) do |*_, &block|
expect(ui).to receive(:debug).with("Command execution: foo")
block.call("foo")
end
described_class.start
end
it "traces Open3.popen3" do
expect(tracing).to receive(:trace).with(Open3, :popen3) do |*_, &block|
expect(ui).to receive(:debug).with("Command execution: foo")
block.call("foo")
end
described_class.start
end
it "traces Kernel.spawn" do
expect(tracing).to receive(:trace).with(Kernel, :spawn) do |*_, &block|
expect(ui).to receive(:debug).with("Command execution: foo")
block.call("foo")
end
described_class.start
end
context "when not started" do
before { described_class.start }
it "sets logger to debug" do
expect(ui).to have_received(:level=).with(Logger::DEBUG)
end
it "makes threads abort on exceptions" do
expect(Thread).to have_received(:abort_on_exception=).with(true)
end
end
context "when already started" do
before do
allow(tracing).to receive(:trace)
described_class.start
end
it "does not set log level" do
expect(ui).to_not receive(:level=)
described_class.start
end
end
end
describe "#stop" do
context "when already started" do
before do
described_class.start
described_class.stop
end
it "sets logger level to info" do
expect(ui).to have_received(:level=).with(Logger::INFO)
end
it "untraces Kernel.system" do
expect(tracing).to have_received(:untrace).with(Kernel, :system)
end
it "untraces Kernel.`" do
expect(tracing).to have_received(:untrace).with(Kernel, :`)
end
it "untraces Open3.popen3" do
expect(tracing).to have_received(:untrace).with(Kernel, :popen3)
end
end
context "when not started" do
it "does not set logger level" do
described_class.stop
expect(ui).to_not have_received(:level=)
end
end
end
end
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