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# frozen_string_literal: true
require "abstract_unit"
module ActionDispatch
class ExceptionWrapperTest < ActionDispatch::IntegrationTest
class TestError < StandardError
attr_reader :backtrace
def initialize(*backtrace)
@backtrace = backtrace.flatten
end
end
class BadlyDefinedError < StandardError
def backtrace
nil
end
end
setup do
@cleaner = ActiveSupport::BacktraceCleaner.new
@cleaner.add_silencer { |line| line !~ /^lib/ }
end
test "#source_extracts fetches source fragments for every backtrace entry" do
exception = TestError.new("lib/file.rb:42:in `index'")
wrapper = ExceptionWrapper.new(nil, exception)
assert_called_with(wrapper, :source_fragment, ["lib/file.rb", 42], returns: "foo") do
assert_equal [ code: "foo", line_number: 42 ], wrapper.source_extracts
end
end
test "#source_extracts works with Windows paths" do
exc = TestError.new("c:/path/to/rails/app/controller.rb:27:in 'index':")
wrapper = ExceptionWrapper.new(nil, exc)
assert_called_with(wrapper, :source_fragment, ["c:/path/to/rails/app/controller.rb", 27], returns: "nothing") do
assert_equal [ code: "nothing", line_number: 27 ], wrapper.source_extracts
end
end
test "#source_extracts works with non standard backtrace" do
exc = TestError.new("invalid")
wrapper = ExceptionWrapper.new(nil, exc)
assert_called_with(wrapper, :source_fragment, ["invalid", 0], returns: "nothing") do
assert_equal [ code: "nothing", line_number: 0 ], wrapper.source_extracts
end
end
test "#application_trace returns traces only from the application" do
exception = TestError.new(caller.prepend("lib/file.rb:42:in `index'"))
wrapper = ExceptionWrapper.new(@cleaner, exception)
assert_equal [ "lib/file.rb:42:in `index'" ], wrapper.application_trace
end
test "#status_code returns 400 for Rack::Utils::ParameterTypeError" do
exception = Rack::Utils::ParameterTypeError.new
wrapper = ExceptionWrapper.new(@cleaner, exception)
assert_equal 400, wrapper.status_code
end
test "#application_trace cannot be nil" do
nil_backtrace_wrapper = ExceptionWrapper.new(@cleaner, BadlyDefinedError.new)
nil_cleaner_wrapper = ExceptionWrapper.new(nil, BadlyDefinedError.new)
assert_equal [], nil_backtrace_wrapper.application_trace
assert_equal [], nil_cleaner_wrapper.application_trace
end
test "#framework_trace returns traces outside the application" do
exception = TestError.new(caller.prepend("lib/file.rb:42:in `index'"))
wrapper = ExceptionWrapper.new(@cleaner, exception)
assert_equal caller, wrapper.framework_trace
end
test "#framework_trace cannot be nil" do
nil_backtrace_wrapper = ExceptionWrapper.new(@cleaner, BadlyDefinedError.new)
nil_cleaner_wrapper = ExceptionWrapper.new(nil, BadlyDefinedError.new)
assert_equal [], nil_backtrace_wrapper.framework_trace
assert_equal [], nil_cleaner_wrapper.framework_trace
end
test "#full_trace returns application and framework traces" do
exception = TestError.new(caller.prepend("lib/file.rb:42:in `index'"))
wrapper = ExceptionWrapper.new(@cleaner, exception)
assert_equal exception.backtrace, wrapper.full_trace
end
test "#full_trace cannot be nil" do
nil_backtrace_wrapper = ExceptionWrapper.new(@cleaner, BadlyDefinedError.new)
nil_cleaner_wrapper = ExceptionWrapper.new(nil, BadlyDefinedError.new)
assert_equal [], nil_backtrace_wrapper.full_trace
assert_equal [], nil_cleaner_wrapper.full_trace
end
test "#traces returns every trace by category enumerated with an index" do
exception = TestError.new("lib/file.rb:42:in `index'", "/gems/rack.rb:43:in `index'")
wrapper = ExceptionWrapper.new(@cleaner, exception)
assert_equal({
"Application Trace" => [ id: 0, trace: "lib/file.rb:42:in `index'" ],
"Framework Trace" => [ id: 1, trace: "/gems/rack.rb:43:in `index'" ],
"Full Trace" => [
{ id: 0, trace: "lib/file.rb:42:in `index'" },
{ id: 1, trace: "/gems/rack.rb:43:in `index'" }
]
}, wrapper.traces)
end
end
end
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