diff options
Diffstat (limited to 'spec/ruby/language/pattern_matching_spec.rb')
| -rw-r--r-- | spec/ruby/language/pattern_matching_spec.rb | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/spec/ruby/language/pattern_matching_spec.rb b/spec/ruby/language/pattern_matching_spec.rb index f3cc86fa0b..e4b7a5105e 100644 --- a/spec/ruby/language/pattern_matching_spec.rb +++ b/spec/ruby/language/pattern_matching_spec.rb @@ -205,7 +205,7 @@ describe "Pattern matching" do in [] end RUBY - }.should raise_error(SyntaxError, /syntax error, unexpected `in'/) + }.should raise_error(SyntaxError, /syntax error, unexpected `in'|\(eval\):3: syntax error, unexpected keyword_in/) -> { eval <<~RUBY @@ -214,7 +214,7 @@ describe "Pattern matching" do when 1 == 1 end RUBY - }.should raise_error(SyntaxError, /syntax error, unexpected `when'/) + }.should raise_error(SyntaxError, /syntax error, unexpected `when'|\(eval\):3: syntax error, unexpected keyword_when/) end it "checks patterns until the first matching" do @@ -251,6 +251,18 @@ describe "Pattern matching" do }.should raise_error(NoMatchingPatternError, /\[0, 1\]/) end + it "raises NoMatchingPatternError if no pattern matches and evaluates the expression only once" do + evals = 0 + -> { + eval <<~RUBY + case (evals += 1; [0, 1]) + in [0] + end + RUBY + }.should raise_error(NoMatchingPatternError, /\[0, 1\]/) + evals.should == 1 + end + it "does not allow calculation or method calls in a pattern" do -> { eval <<~RUBY |