diff options
Diffstat (limited to 'test/prism/warnings_test.rb')
| -rw-r--r-- | test/prism/warnings_test.rb | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/test/prism/warnings_test.rb b/test/prism/warnings_test.rb deleted file mode 100644 index d01db01a0e..0000000000 --- a/test/prism/warnings_test.rb +++ /dev/null @@ -1,237 +0,0 @@ -# frozen_string_literal: true - -return if RUBY_VERSION < "3.1" - -require_relative "test_helper" -require "stringio" - -module Prism - class WarningsTest < TestCase - def test_ambiguous_uminus - assert_warning("a -b", "ambiguous first argument") - end - - def test_ambiguous_uplus - assert_warning("a +b", "ambiguous first argument") - end - - def test_ambiguous_ustar - assert_warning("a *b", "argument prefix") - end - - def test_ambiguous_regexp - assert_warning("a /b/", "wrap regexp in parentheses") - end - - def test_equal_in_conditional - assert_warning("if a = 1; end; a = a", "should be ==") - end - - def test_dot_dot_dot_eol - assert_warning("_ = foo...", "... at EOL") - assert_warning("def foo(...) = bar ...", "... at EOL") - - assert_warning("_ = foo... #", "... at EOL") - assert_warning("_ = foo... \t\v\f\n", "... at EOL") - - refute_warning("p foo...bar") - refute_warning("p foo... bar") - end - - def test_END_in_method - assert_warning("def foo; END {}; end", "END in method") - end - - def test_duplicated_hash_key - assert_warning("{ a: 1, a: 2 }", "duplicated and overwritten") - assert_warning("{ a: 1, **{ a: 2 } }", "duplicated and overwritten") - end - - def test_duplicated_when_clause - assert_warning("case 1; when 1, 1; end", "clause with line") - end - - def test_float_out_of_range - assert_warning("_ = 1.0e100000", "out of range") - end - - def test_integer_in_flip_flop - assert_warning("1 if 2..foo", "integer") - end - - def test_keyword_eol - assert_warning("if\ntrue; end", "end of line") - assert_warning("if true\nelsif\nfalse; end", "end of line") - end - - def test_string_in_predicate - assert_warning("if 'foo'; end", "string") - assert_warning("if \"\#{foo}\"; end", "string") - assert_warning("if __FILE__; end", "string") - end - - def test_symbol_in_predicate - assert_warning("if :foo; end", "symbol") - assert_warning("if :\"\#{foo}\"; end", "symbol") - end - - def test_literal_in_predicate - assert_warning("if __LINE__; end", "literal") - assert_warning("if __ENCODING__; end", "literal") - assert_warning("if 1; end", "literal") - assert_warning("if 1.0; end", "literal") - assert_warning("if 1r; end", "literal") - assert_warning("if 1i; end", "literal") - end - - def test_regexp_in_predicate - assert_warning("if /foo/; end", "regex") - assert_warning("if /foo\#{bar}/; end", "regex") - end - - def test_unused_local_variables - assert_warning("foo = 1", "unused") - - refute_warning("foo = 1", compare: false, command_line: "e") - refute_warning("foo = 1", compare: false, scopes: [[]]) - - assert_warning("def foo; bar = 1; end", "unused") - assert_warning("def foo; bar, = 1; end", "unused") - - refute_warning("def foo; bar &&= 1; end") - refute_warning("def foo; bar ||= 1; end") - refute_warning("def foo; bar += 1; end") - - refute_warning("def foo; bar = bar; end") - refute_warning("def foo; bar = bar = 1; end") - refute_warning("def foo; bar = (bar = 1); end") - refute_warning("def foo; bar = begin; bar = 1; end; end") - refute_warning("def foo; bar = (qux; bar = 1); end") - refute_warning("def foo; bar, = bar = 1; end") - refute_warning("def foo; bar, = 1, bar = 1; end") - - refute_warning("def foo(bar); end") - refute_warning("def foo(bar = 1); end") - refute_warning("def foo((bar)); end") - refute_warning("def foo(*bar); end") - refute_warning("def foo(*, bar); end") - refute_warning("def foo(*, (bar)); end") - refute_warning("def foo(bar:); end") - refute_warning("def foo(**bar); end") - refute_warning("def foo(&bar); end") - refute_warning("->(bar) {}") - refute_warning("->(; bar) {}", compare: false) - - refute_warning("def foo; bar = 1; tap { bar }; end") - refute_warning("def foo; bar = 1; tap { baz = bar; baz }; end") - end - - def test_void_statements - assert_warning("foo = 1; foo", "a variable in void") - assert_warning("@foo", "a variable in void") - assert_warning("@@foo", "a variable in void") - assert_warning("$foo", "a variable in void") - assert_warning("$+", "a variable in void") - assert_warning("$1", "a variable in void") - - assert_warning("self", "self in void") - assert_warning("nil", "nil in void") - assert_warning("true", "true in void") - assert_warning("false", "false in void") - - assert_warning("1", "literal in void") - assert_warning("1.0", "literal in void") - assert_warning("1r", "literal in void") - assert_warning("1i", "literal in void") - assert_warning(":foo", "literal in void") - assert_warning("\"foo\"", "literal in void") - assert_warning("\"foo\#{1}\"", "literal in void") - assert_warning("/foo/", "literal in void") - assert_warning("/foo\#{1}/", "literal in void") - - assert_warning("Foo", "constant in void") - assert_warning("::Foo", ":: in void") - assert_warning("Foo::Bar", ":: in void") - - assert_warning("1..2", ".. in void") - assert_warning("1..", ".. in void") - assert_warning("..2", ".. in void") - assert_warning("1...2", "... in void") - assert_warning("1...;", "... in void") - assert_warning("...2", "... in void") - - assert_warning("defined?(foo)", "defined? in void") - - assert_warning("1 + 1", "+ in void") - assert_warning("1 - 1", "- in void") - assert_warning("1 * 1", "* in void") - assert_warning("1 / 1", "/ in void") - assert_warning("1 % 1", "% in void") - assert_warning("1 | 1", "| in void") - assert_warning("1 ^ 1", "^ in void") - assert_warning("1 & 1", "& in void") - assert_warning("1 > 1", "> in void") - assert_warning("1 < 1", "< in void") - - assert_warning("1 ** 1", "** in void") - assert_warning("1 <= 1", "<= in void") - assert_warning("1 >= 1", ">= in void") - assert_warning("1 != 1", "!= in void") - assert_warning("1 == 1", "== in void") - assert_warning("1 <=> 1", "<=> in void") - - assert_warning("+foo", "+@ in void") - assert_warning("-foo", "-@ in void") - - assert_warning("def foo; @bar; @baz; end", "variable in void") - refute_warning("def foo; @bar; end") - refute_warning("@foo", compare: false, scopes: [[]]) - end - - def test_unreachable_statement - assert_warning("begin; rescue; retry; foo; end", "statement not reached") - - assert_warning("return; foo", "statement not reached") - - assert_warning("tap { break; foo }", "statement not reached") - assert_warning("tap { break 1; foo }", "statement not reached") - - assert_warning("tap { next; foo }", "statement not reached") - assert_warning("tap { next 1; foo }", "statement not reached") - - assert_warning("tap { redo; foo }", "statement not reached") - end - - private - - def assert_warning(source, message) - warnings = Prism.parse(source).warnings - - assert_equal 1, warnings.length - assert_include warnings.first.message, message - - if defined?(RubyVM::AbstractSyntaxTree) - assert_include capture_warning { RubyVM::AbstractSyntaxTree.parse(source) }, message - end - end - - def refute_warning(source, compare: true, **options) - assert_empty Prism.parse(source, **options).warnings - - if compare && defined?(RubyVM::AbstractSyntaxTree) - assert_empty capture_warning { RubyVM::AbstractSyntaxTree.parse(source) } - end - end - - def capture_warning - stderr, $stderr, verbose, $VERBOSE = $stderr, StringIO.new, $VERBOSE, true - - begin - yield - $stderr.string - ensure - $stderr, $VERBOSE = stderr, verbose - end - end - end -end |