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require_relative '../../spec_helper'
describe "Exception#full_message" do
it "returns formatted string of exception using the same format that is used to print an uncaught exceptions to stderr" do
e = RuntimeError.new("Some runtime error")
e.set_backtrace(["a.rb:1", "b.rb:2"])
full_message = e.full_message
full_message.should include "RuntimeError"
full_message.should include "Some runtime error"
full_message.should include "a.rb:1"
full_message.should include "b.rb:2"
end
it "supports :highlight option and adds escape sequences to highlight some strings" do
e = RuntimeError.new("Some runtime error")
full_message = e.full_message(highlight: true, order: :top).lines
full_message[0].should.end_with? "\e[1mSome runtime error (\e[1;4mRuntimeError\e[m\e[1m)\e[m\n"
full_message = e.full_message(highlight: true, order: :bottom).lines
full_message[0].should == "\e[1mTraceback\e[m (most recent call last):\n"
full_message[-1].should.end_with? "\e[1mSome runtime error (\e[1;4mRuntimeError\e[m\e[1m)\e[m\n"
full_message = e.full_message(highlight: false, order: :top).lines
full_message[0].should.end_with? "Some runtime error (RuntimeError)\n"
full_message = e.full_message(highlight: false, order: :bottom).lines
full_message[0].should == "Traceback (most recent call last):\n"
full_message[-1].should.end_with? "Some runtime error (RuntimeError)\n"
end
it "supports :order option and places the error message and the backtrace at the top or the bottom" do
e = RuntimeError.new("Some runtime error")
e.set_backtrace(["a.rb:1", "b.rb:2"])
e.full_message(order: :top, highlight: false).should =~ /a.rb:1.*b.rb:2/m
e.full_message(order: :bottom, highlight: false).should =~ /b.rb:2.*a.rb:1/m
end
it "shows the caller if the exception has no backtrace" do
e = RuntimeError.new("Some runtime error")
e.backtrace.should == nil
full_message = e.full_message(highlight: false, order: :top).lines
full_message[0].should.start_with?("#{__FILE__}:#{__LINE__-1}:in ")
full_message[0].should.end_with?("': Some runtime error (RuntimeError)\n")
end
describe "includes details about whether an exception was handled" do
describe "RuntimeError" do
it "should report as unhandled if message is empty" do
err = RuntimeError.new("")
err.full_message.should =~ /unhandled exception/
err.full_message(highlight: true).should =~ /unhandled exception/
err.full_message(highlight: false).should =~ /unhandled exception/
end
it "should not report as unhandled if the message is not empty" do
err = RuntimeError.new("non-empty")
err.full_message.should !~ /unhandled exception/
err.full_message(highlight: true).should !~ /unhandled exception/
err.full_message(highlight: false).should !~ /unhandled exception/
end
it "should not report as unhandled if the message is nil" do
err = RuntimeError.new(nil)
err.full_message.should !~ /unhandled exception/
err.full_message(highlight: true).should !~ /unhandled exception/
err.full_message(highlight: false).should !~ /unhandled exception/
end
it "should not report as unhandled if the message is not specified" do
err = RuntimeError.new()
err.full_message.should !~ /unhandled exception/
err.full_message(highlight: true).should !~ /unhandled exception/
err.full_message(highlight: false).should !~ /unhandled exception/
end
end
describe "generic Error" do
it "should not report as unhandled in any event" do
StandardError.new("").full_message.should !~ /unhandled exception/
StandardError.new("non-empty").full_message.should !~ /unhandled exception/
end
end
end
it "shows the exception class at the end of the first line of the message when the message contains multiple lines" do
begin
line = __LINE__; raise "first line\nsecond line"
rescue => e
full_message = e.full_message(highlight: false, order: :top).lines
full_message[0].should.start_with?("#{__FILE__}:#{line}:in ")
full_message[0].should.end_with?(": first line (RuntimeError)\n")
full_message[1].should == "second line\n"
end
end
it "highlights the entire message when the message contains multiple lines" do
begin
line = __LINE__; raise "first line\nsecond line\nthird line"
rescue => e
full_message = e.full_message(highlight: true, order: :top).lines
full_message[0].should.start_with?("#{__FILE__}:#{line}:in ")
full_message[0].should.end_with?(": \e[1mfirst line (\e[1;4mRuntimeError\e[m\e[1m)\e[m\n")
full_message[1].should == "\e[1msecond line\e[m\n"
full_message[2].should == "\e[1mthird line\e[m\n"
end
end
it "contains cause of exception" do
begin
begin
raise 'the cause'
rescue
raise 'main exception'
end
rescue => e
exception = e
end
exception.full_message.should include "main exception"
exception.full_message.should include "the cause"
end
it 'contains all the chain of exceptions' do
begin
begin
begin
raise 'origin exception'
rescue
raise 'intermediate exception'
end
rescue
raise 'last exception'
end
rescue => e
exception = e
end
exception.full_message.should include "last exception"
exception.full_message.should include "intermediate exception"
exception.full_message.should include "origin exception"
end
ruby_version_is "3.2" do
it "relies on #detailed_message" do
e = RuntimeError.new("new error")
e.define_singleton_method(:detailed_message) { |**| "DETAILED MESSAGE" }
e.full_message.lines.first.should =~ /DETAILED MESSAGE/
end
it "passes all its own keyword arguments (with :highlight default value and without :order default value) to #detailed_message" do
e = RuntimeError.new("new error")
options_passed = nil
e.define_singleton_method(:detailed_message) do |**options|
options_passed = options
"DETAILED MESSAGE"
end
e.full_message(foo: "bar")
options_passed.should == { foo: "bar", highlight: Exception.to_tty? }
end
it "converts #detailed_message returned value to String if it isn't a String" do
message = Object.new
def message.to_str; "DETAILED MESSAGE"; end
e = RuntimeError.new("new error")
e.define_singleton_method(:detailed_message) { |**| message }
e.full_message.lines.first.should =~ /DETAILED MESSAGE/
end
it "uses class name if #detailed_message returns nil" do
e = RuntimeError.new("new error")
e.define_singleton_method(:detailed_message) { |**| nil }
e.full_message(highlight: false).lines.first.should =~ /RuntimeError/
e.full_message(highlight: true).lines.first.should =~ /#{Regexp.escape("\e[1;4mRuntimeError\e[m")}/
end
it "uses class name if exception object doesn't respond to #detailed_message" do
e = RuntimeError.new("new error")
class << e
undef :detailed_message
end
e.full_message(highlight: false).lines.first.should =~ /RuntimeError/
e.full_message(highlight: true).lines.first.should =~ /#{Regexp.escape("\e[1;4mRuntimeError\e[m")}/
end
end
end
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