Change to optional warning display

Changelog.md

@@ -1,3 +1,8 @@
+# v0.11.29 [unreleased]
+
+* [#1421](https://github.com/mbj/mutant/pull/1421)
+  Change to optional warning display via --print-warnings environment option.
+
 # v0.11.28 2024-02-09
 
 * [#1418](https://github.com/mbj/mutant/pull/1418)

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    mutant (0.11.28)
+    mutant (0.11.29)
       diff-lcs (~> 1.3)
       parser (~> 3.3.0)
       regexp_parser (~> 2.9.0)
@@ -44,7 +44,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.60.2)
+    rubocop (1.61.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -55,10 +55,10 @@ GEM
       rubocop-ast (>= 1.30.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.30.0)
-      parser (>= 3.2.1.0)
+    rubocop-ast (1.31.1)
+      parser (>= 3.3.0.4)
     ruby-progressbar (1.13.0)
-    sorbet-runtime (0.5.11268)
+    sorbet-runtime (0.5.11284)
     unicode-display_width (2.5.0)
     unparser (0.6.13)
       diff-lcs (~> 1.3)

lib/mutant/cli/command/environment.rb

@@ -3,6 +3,7 @@
 module Mutant
   module CLI
     class Command
+      # rubocop:disable Metrics/ClassLength
       class Environment < self
         NAME              = 'environment'
         SHORT_DESCRIPTION = 'Environment subcommands'
@@ -13,6 +14,7 @@ class Environment < self
             add_runner_options
             add_integration_options
             add_matcher_options
+            add_reporter_options
           ].freeze
 
       private
@@ -126,7 +128,16 @@ def add_runner_options(parser)
             set(mutation: @config.mutation.with(timeout: Float(number)))
           end
         end
+
+        def add_reporter_options(parser)
+          parser.separator('Reporting:')
+
+          parser.on('--print-warnings', 'Print warnings') do
+            set(reporter: @config.reporter.with(print_warnings: true))
+          end
+        end
       end # Run
+      # rubocop:enable Metrics/ClassLength
     end # Command
   end # CLI
 end # Mutant

lib/mutant/reporter/cli.rb

@@ -4,7 +4,7 @@ module Mutant
   class Reporter
     # Reporter that reports in human readable format
     class CLI < self
-      include Anima.new(:output, :format)
+      include Anima.new(:print_warnings, :output, :format)
 
       # Build reporter
       #
@@ -13,8 +13,9 @@ class CLI < self
       # @return [Reporter::CLI]
       def self.build(output)
         new(
-          format: Format::Progressive.new(tty: output.respond_to?(:tty?) && output.tty?),
-          output: output
+          format:         Format::Progressive.new(tty: output.respond_to?(:tty?) && output.tty?),
+          print_warnings: false,
+          output:         output
         )
       end
 
@@ -51,7 +52,7 @@ def delay
       #
       # @return [self]
       def warn(message)
-        output.puts(message)
+        output.puts(message) if print_warnings
         self
       end
 

lib/mutant/version.rb

@@ -2,5 +2,5 @@
 
 module Mutant
   # Current mutant version
-  VERSION = '0.11.28'
+  VERSION = '0.11.29'
 end # Mutant

spec/unit/mutant/cli_spec.rb

@@ -320,6 +320,10 @@ def self.main_body
                 --ignore-subject EXPRESSION  Ignore subjects that match EXPRESSION as prefix
                 --start-subject EXPRESSION   Start mutation testing at a specific subject
                 --since REVISION             Only select subjects touched since REVISION
+
+
+        Reporting:
+                --print-warnings             Print warnings
       MESSAGE
 
       {
@@ -370,6 +374,10 @@ def self.main_body
                 --ignore-subject EXPRESSION  Ignore subjects that match EXPRESSION as prefix
                 --start-subject EXPRESSION   Start mutation testing at a specific subject
                 --since REVISION             Only select subjects touched since REVISION
+
+
+        Reporting:
+                --print-warnings             Print warnings
       MESSAGE
 
       {
@@ -420,6 +428,10 @@ def self.main_body
                 --ignore-subject EXPRESSION  Ignore subjects that match EXPRESSION as prefix
                 --start-subject EXPRESSION   Start mutation testing at a specific subject
                 --since REVISION             Only select subjects touched since REVISION
+
+
+        Reporting:
+                --print-warnings             Print warnings
       MESSAGE
 
       {
@@ -864,6 +876,48 @@ def self.main_body
       end
     end
 
+    context 'environment subject list --print-warnings' do
+      include_context 'environment'
+
+      let(:arguments) { %w[environment subject list --print-warnings] }
+
+      let(:expected_exit) { true }
+
+      let(:expected_events) do
+        [
+          %i[
+            record
+            config
+          ],
+          [
+            :load_config,
+            {
+              cli_config: expected_cli_config.with(
+                reporter: expected_cli_config.reporter.with(print_warnings: true)
+              ),
+              world:      world
+            }.inspect
+          ],
+          [
+            :bootstrap,
+            Mutant::Env.empty(world, bootstrap_config).inspect
+          ],
+          [
+            :stdout,
+            :puts,
+            'Subjects in environment: 1'
+          ],
+          [
+            :stdout,
+            :puts,
+            'Object#send'
+          ]
+        ]
+      end
+
+      include_examples 'CLI run'
+    end
+
     context 'environment subject list' do
       include_context 'environment'
 

spec/unit/mutant/reporter/cli_spec.rb

@@ -3,9 +3,9 @@
 RSpec.describe Mutant::Reporter::CLI do
   setup_shared_context
 
-  let(:format) { described_class::Format::Progressive.new(tty: tty?) }
-  let(:object) { described_class.new(format: format, output: output) }
-  let(:tty?)   { false                                               }
+  let(:format) { described_class::Format::Progressive.new(tty: tty?)                        }
+  let(:object) { described_class.new(format: format, output: output, print_warnings: false) }
+  let(:tty?)   { false                                                                      }
 
   def contents
     output.rewind
@@ -26,18 +26,18 @@ def self.it_reports(expected_content)
       let(:tty?)   { true                            }
       let(:output) { instance_double(IO, tty?: true) }
 
-      it { should eql(described_class.new(format: format, output: output)) }
+      it { should eql(described_class.new(format: format, output: output, print_warnings: false)) }
     end
 
     context 'when output is not a tty' do
       context 'and does not respond to #tty?' do
         let(:output) { nil }
 
-        it { should eql(described_class.new(format: format, output: output)) }
+        it { should eql(described_class.new(format: format, output: output, print_warnings: false)) }
       end
 
       context 'and does respond to #tty?' do
-        it { should eql(described_class.new(format: format, output: output)) }
+        it { should eql(described_class.new(format: format, output: output, print_warnings: false)) }
       end
     end
   end
@@ -47,7 +47,15 @@ def self.it_reports(expected_content)
 
     let(:message) { 'message' }
 
-    it_reports("message\n")
+    context 'when print warnings is disabled' do
+      it_reports('')
+    end
+
+    context 'when print warnings is enabled' do
+      let(:object) { super().with(print_warnings: true) }
+
+      it_reports("message\n")
+    end
   end
 
   describe '#delay' do

test_app/Gemfile.minitest.lock

@@ -1,15 +1,15 @@
 PATH
   remote: ..
   specs:
-    mutant (0.11.28)
+    mutant (0.11.29)
       diff-lcs (~> 1.3)
       parser (~> 3.3.0)
       regexp_parser (~> 2.9.0)
       sorbet-runtime (~> 0.5.0)
       unparser (~> 0.6.9)
-    mutant-minitest (0.11.28)
+    mutant-minitest (0.11.29)
       minitest (~> 5.11)
-      mutant (= 0.11.28)
+      mutant (= 0.11.29)
 
 GEM
   remote: https://oss:[email protected]/

test_app/Gemfile.rspec3.8.lock

@@ -1,14 +1,14 @@
 PATH
   remote: ..
   specs:
-    mutant (0.11.28)
+    mutant (0.11.29)
       diff-lcs (~> 1.3)
       parser (~> 3.3.0)
       regexp_parser (~> 2.9.0)
       sorbet-runtime (~> 0.5.0)
       unparser (~> 0.6.9)
-    mutant-rspec (0.11.28)
-      mutant (= 0.11.28)
+    mutant-rspec (0.11.29)
+      mutant (= 0.11.29)
       rspec-core (>= 3.8.0, < 4.0.0)
 
 GEM