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|
# frozen_string_literal: true
RSpec.describe Pry::Command::Wtf do
describe "#process" do
let(:output) { StringIO.new }
let(:exception) do
error = RuntimeError.new('oops')
error.set_backtrace(Array.new(6) { "/bin/pry:23:in `<main>'" })
error
end
let(:pry_instance) do
instance = Pry.new
instance.last_exception = exception
instance
end
before do
subject.pry_instance = pry_instance
subject.output = output
subject.opts = Pry::Slop.new
subject.captures = ['']
end
context "when there wasn't an exception raised" do
before { subject.pry_instance = Pry.new }
it "raises Pry::CommandError" do
expect { subject.process }
.to raise_error(Pry::CommandError, 'No most-recent exception')
end
end
context "when the verbose flag is missing" do
before { expect(subject.opts).to receive(:verbose?).and_return(false) }
it "prints only a part of the exception backtrace" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: oops\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n"
)
end
end
context "when the verbose flag is present" do
before { expect(subject.opts).to receive(:verbose?).and_return(true) }
it "prints full exception backtrace" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: oops\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n" \
"5: /bin/pry:23:in `<main>'\n"
)
end
end
context "when captures contains exclamations (wtf?! invocation)" do
before { subject.captures = ['!'] }
it "prints more of backtrace" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: oops\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n" \
"5: /bin/pry:23:in `<main>'\n" \
)
end
end
context "when given a nested exception" do
let(:nested_exception) do
begin
begin
begin
raise 'inner'
rescue RuntimeError
raise 'outer'
end
end
rescue RuntimeError => error
error.set_backtrace(Array.new(6) { "/bin/pry:23:in `<main>'" })
error.cause.set_backtrace(Array.new(6) { "/bin/pry:23:in `<main>'" })
error
end
end
before do
if Gem::Version.new(RUBY_VERSION) <= Gem::Version.new('2.0.0')
skip('Exception#cause is not supported')
end
pry_instance.last_exception = nested_exception
end
context "and when the verbose flag is missing" do
before { expect(subject.opts).to receive(:verbose?).twice.and_return(false) }
it "prints parts of both original and nested exception backtrace" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: outer\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n" \
"\e[1mCaused by:\e[0m RuntimeError: inner\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n"
)
end
end
context "and when the verbose flag present" do
before { expect(subject.opts).to receive(:verbose?).twice.and_return(true) }
it "prints both original and nested exception backtrace" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: outer\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n" \
"5: /bin/pry:23:in `<main>'\n" \
"\e[1mCaused by:\e[0m RuntimeError: inner\n" \
"--\n" \
"0: /bin/pry:23:in `<main>'\n" \
"1: /bin/pry:23:in `<main>'\n" \
"2: /bin/pry:23:in `<main>'\n" \
"3: /bin/pry:23:in `<main>'\n" \
"4: /bin/pry:23:in `<main>'\n" \
"5: /bin/pry:23:in `<main>'\n"
)
end
end
end
context "when the code flag is present" do
let(:exception) do
error = RuntimeError.new('oops')
error.set_backtrace(
Array.new(6) { "#{__FILE__}:#{__LINE__}:in `<main>'" }
)
error
end
before do
expect(subject.opts).to receive(:code?).at_least(:once).and_return(true)
end
it "prints lines of code that exception frame references" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: oops\n" \
"--\n" \
"0: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
" Array.new(6) { \"\#{__FILE__}:\#{__LINE__}:in `<main>'\" }\n" \
"1: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
" Array.new(6) { \"\#{__FILE__}:\#{__LINE__}:in `<main>'\" }\n" \
"2: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
" Array.new(6) { \"\#{__FILE__}:\#{__LINE__}:in `<main>'\" }\n" \
"3: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
" Array.new(6) { \"\#{__FILE__}:\#{__LINE__}:in `<main>'\" }\n" \
"4: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
" Array.new(6) { \"\#{__FILE__}:\#{__LINE__}:in `<main>'\" }\n"
)
end
context "and when referenced frame doesn't exist" do
before do
expect(File).to receive(:open).at_least(:once).and_raise(Errno::ENOENT)
end
it "skips code and prints only the backtrace frame" do
subject.process
expect(subject.output.string).to eq(
"\e[1mException:\e[0m RuntimeError: oops\n" \
"--\n" \
"0: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
"1: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
"2: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
"3: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n" \
"4: \e[1m#{__FILE__}:168:in `<main>'\e[0m\n"
)
end
end
end
end
end
|
