fix: fixed pending spec formatter (#89)

* Fix pending spec
In case of a `pending` spec, the third argument is not provided.

* Test fixed pending spec

Author: D-system

lib/ruby_lsp/ruby_lsp_rspec/rspec_formatter.rb

@@ -80,7 +80,7 @@ def generate_id(example)
       def adjust_backtrace(backtrace)
         # Correct the backtrace entry so that vscode recognized it as a link to open
         parts = backtrace.split(":", 3)
-        parts[0].sub(/^\./, "file://" + File.expand_path(".")) + ":" + parts[1] + " : " + parts[2]
+        parts[0].sub(/^\./, "file://" + File.expand_path(".")) + ":" + parts[1] + " : " + (parts[2] || "")
       end
     end
   end

spec/fixtures/rspec_example_spec.rb

@@ -30,5 +30,9 @@
     it "raises an error" do
       raise "oops"
     end
+    it "is pending but fixed" do
+      pending
+      expect { raise "error" }.to raise_error
+    end
   end
 end

spec/rspec_formatter_spec.rb

@@ -132,6 +132,22 @@
           "uri" => "file://#{fixture_path}",
         },
       },
+      {
+        "method" => "start",
+        "params" => {
+          "id" => "./spec/fixtures/rspec_example_spec.rb:11::./spec/fixtures/rspec_example_spec.rb:12::./spec/fixtures/rspec_example_spec.rb:33",
+          "line" => "33",
+          "uri" => "file://#{fixture_path}",
+        },
+      },
+      {
+        "method" => "fail",
+        "params" => {
+          "id" => "./spec/fixtures/rspec_example_spec.rb:11::./spec/fixtures/rspec_example_spec.rb:12::./spec/fixtures/rspec_example_spec.rb:33",
+          "message" => "Expected pending 'No reason given' to fail. No error was raised.\n\n# file://#{fixture_path}:33 : ",
+          "uri" => "file://#{fixture_path}",
+        },
+      },
       { "method" => "finish", "params" => {} },
     ]