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pry--pry/spec/syntax_checking_spec.rb
Barrett Ingram 25f5022fcf Add CI support for ruby 3 and fix broken spec
Spec started failing because a statement which we expected to be a
syntax error is now interpreted as a valid pattern-matching statement.
Swapping the hash-rockets for colons turns this back into a syntax
error.
2021-01-02 18:06:21 -06:00

105 lines
3 KiB
Ruby

# frozen_string_literal: true
describe Pry do
before do
@str_output = StringIO.new
end
[
["p = '", "'"],
["def", "a", "(); end"],
["p = <<FOO", "lots", "and", "lots of", "foo", "FOO"],
["[", ":lets,", "'list',", "[/nested/", "], things ]"],
["abc =~ /hello", "/"],
["issue = %W/", "343/"],
["pouts(<<HI, 'foo", "bar", "HI", "baz')"]
].each do |foo|
it "should not raise an error on broken lines: #{foo.join('\\n')}" do
redirect_pry_io(InputTester.new(*foo), @str_output) do
Pry.start
end
expect(@str_output.string).not_to match(/SyntaxError/)
end
end
[
["end"],
["puts )("],
["1 1"],
["puts :"],
# in this case the syntax error is "expecting ')'".
["def", "method(1"],
# in this case the syntax error is "expecting keyword_end".
["o = Object.new.tap{ def o.render;", "'MEH'", "}"],
# multiple syntax errors reported in one SyntaxException
["puts {key: 'val'}.to_json"]
].compact.each do |foo|
it "should raise an error on invalid syntax like #{foo.inspect}" do
redirect_pry_io(InputTester.new(*foo), @str_output) do
Pry.start
end
expect(@str_output.string).to match(/SyntaxError/)
end
it "should display correct number of errors on invalid syntax like #{foo.inspect}" do
begin
# rubocop:disable Security/Eval
eval(foo.join("\n"))
# rubocop:enable Security/Eval
rescue SyntaxError => e
error_count = e.message.scan(/syntax error/).count
end
expect(error_count).not_to be_nil
pry_output = mock_pry(*foo)
expect(pry_output.scan(/SyntaxError/).count).to eq(error_count)
end
end
it "should not intefere with syntax errors explicitly raised" do
input_tester = InputTester.new('raise SyntaxError, "unexpected $end"')
redirect_pry_io(input_tester, @str_output) do
Pry.start
end
expect(@str_output.string).to match(/SyntaxError/)
end
it "should allow trailing , to continue the line" do
expect(Pry::Code.complete_expression?("puts 1, 2,")).to eq false
end
it "should complete an expression that contains a line ending with a ," do
expect(Pry::Code.complete_expression?("puts 1, 2,\n3")).to eq true
end
it "should not suppress the error output if the line ends in ;" do
expect(mock_pry("raise RuntimeError, 'foo';")).to match(/RuntimeError/)
end
it "should not clobber _ex_ on a SyntaxError in the repl" do
output = mock_pry(
"raise RuntimeError, 'foo'",
"puts foo)",
"_ex_.is_a?(RuntimeError)"
)
expect(output).to match(/^RuntimeError.*\nSyntaxError.*\n=> true/m)
end
it "should allow whitespace delimeted strings" do
expect(mock_pry('"%s" % % foo ')).to match(/"foo"/)
end
it "should allow newline delimeted strings" do
expect(mock_pry('"%s" % %', 'foo')).to match(/"foo"/)
end
it "should allow whitespace delimeted strings ending on the first char of a line" do
expect(mock_pry('"%s" % % ', ' #done!')).to match(/"\\n"/)
end
end