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# frozen_string_literal: false
require 'tempfile'
require 'irb'
require_relative "helper"
module TestIRB
class ContextWithTracerIntegrationTest < IntegrationTestCase
def setup
super
omit "Tracer gem is not available when running on TruffleRuby" if RUBY_ENGINE == "truffleruby"
@envs.merge!("NO_COLOR" => "true")
end
def example_ruby_file
<<~'RUBY'
class Foo
def self.foo
100
end
end
def bar(obj)
obj.foo
end
binding.irb
RUBY
end
def test_use_tracer_enabled_when_gem_is_unavailable
write_rc <<~RUBY
# Simulate the absence of the tracer gem
::Kernel.send(:alias_method, :irb_original_require, :require)
::Kernel.define_method(:require) do |name|
raise LoadError, "cannot load such file -- tracer (test)" if name.match?("tracer")
::Kernel.send(:irb_original_require, name)
end
IRB.conf[:USE_TRACER] = true
RUBY
write_ruby example_ruby_file
output = run_ruby_file do
type "bar(Foo)"
type "exit"
end
assert_include(output, "Tracer extension of IRB is enabled but tracer gem wasn't found.")
end
def test_use_tracer_enabled_when_gem_is_available
write_rc <<~RUBY
IRB.conf[:USE_TRACER] = true
RUBY
write_ruby example_ruby_file
output = run_ruby_file do
type "bar(Foo)"
type "exit"
end
assert_include(output, "Object#bar at")
assert_include(output, "Foo.foo at")
assert_include(output, "Foo.foo #=> 100")
assert_include(output, "Object#bar #=> 100")
# Test that the tracer output does not include IRB's own files
assert_not_include(output, "irb/workspace.rb")
end
def test_use_tracer_is_disabled_by_default
write_ruby example_ruby_file
output = run_ruby_file do
type "bar(Foo)"
type "exit"
end
assert_not_include(output, "#depth:")
assert_not_include(output, "Foo.foo")
end
end
end
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