Use the config option value when printing the bisect runner.

Author: myronmarston

features/command_line/bisect.feature

@@ -94,7 +94,7 @@ Feature: Bisect
     When I run `rspec --seed 1234 --bisect=verbose`
     Then bisect should succeed with output like:
       """
-      Bisect started using options: "--seed 1234" and bisect runner: RSpec::Core::Bisect::ForkRunner
+      Bisect started using options: "--seed 1234" and bisect runner: :fork
       Running suite to find failures... (0.16528 seconds)
        - Failing examples (1):
           - ./spec/calculator_1_spec.rb[1:1]
@@ -171,7 +171,7 @@ Feature: Bisect
     When I run `rspec --seed 1234 --bisect=verbose`
     Then bisect should succeed with output like:
       """
-      Bisect started using options: "--seed 1234" and bisect runner: RSpec::Core::Bisect::ShellRunner
+      Bisect started using options: "--seed 1234" and bisect runner: :shell
       # ...
       The minimal reproduction command is:
         rspec ./spec/calculator_10_spec.rb[1:1] ./spec/calculator_1_spec.rb[1:1] --seed 1234

lib/rspec/core/bisect/example_minimizer.rb

@@ -112,7 +112,7 @@ def example_range(ids)
 
         def prep
           notify(:bisect_starting, :original_cli_args => shell_command.original_cli_args,
-                                   :bisect_runner => runner.class)
+                                   :bisect_runner => runner.class.name)
 
           _, duration = track_duration do
             original_results    = runner.original_results

lib/rspec/core/bisect/fork_runner.rb

@@ -40,6 +40,10 @@ def self.start(shell_command, spec_runner)
           instance.shutdown
         end
 
+        def self.name
+          :fork
+        end
+
         def initialize(shell_command, spec_runner)
           @shell_command = shell_command
           @channel = Channel.new

lib/rspec/core/bisect/shell_runner.rb

@@ -16,6 +16,10 @@ def self.start(shell_command, _spec_runner)
           end
         end
 
+        def self.name
+          :shell
+        end
+
         def initialize(server, shell_command)
           @server        = server
           @shell_command = shell_command

lib/rspec/core/formatters/bisect_progress_formatter.rb

@@ -149,7 +149,7 @@ def describe_ids(description, ids)
         end
 
         def bisect_started_message(notification)
-          "#{super} and bisect runner: #{notification.bisect_runner}"
+          "#{super} and bisect runner: #{notification.bisect_runner.inspect}"
         end
       end
     end

spec/rspec/core/bisect/coordinator_spec.rb

@@ -49,7 +49,7 @@ def find_minimal_repro(output, formatter=Formatters::BisectProgressFormatter, bi
       output = normalize_durations(output.string)
 
       expect(output).to eq(<<-EOS.gsub(/^\s+\|/, ''))
-        |Bisect started using options: "" and bisect runner: FakeBisectRunner
+        |Bisect started using options: "" and bisect runner: "FakeBisectRunner"
         |Running suite to find failures... (n.nnnn seconds)
         | - Failing examples (2):
         |    - 2.rb[1:1]
@@ -150,7 +150,7 @@ def find_minimal_repro(output, formatter=Formatters::BisectProgressFormatter, bi
         output = normalize_durations(output.string)
 
         expect(output).to eq(<<-EOS.gsub(/^\s+\|/, ''))
-          |Bisect started using options: "" and bisect runner: FakeBisectRunner
+          |Bisect started using options: "" and bisect runner: "FakeBisectRunner"
           |Running suite to find failures... (n.nnnn seconds)
           | - Failing examples (1):
           |    - 2.rb[1:1]