Add new rules removing lines of code

doc/output/example/source.dart.html

@@ -348,7 +348,7 @@
 
      <tr>
      <td class="ItemLabel" width="10%">Date:</td>
-     <td class="ItemText" width="35%">2023-10-25 20:12:26.292830</td>
+     <td class="ItemText" width="35%">2024-03-24 15:27:37.230520</td>
      <td class="ItemLabel" width="10%">Mutations:</td>
      <td class="ItemReport" width="15%">22</td>
      <td class="ItemReport" width="15%">42</td>
@@ -359,9 +359,9 @@
      <td class="ItemLabel" width="10%">Builtin rules:</td>
      <td class="ItemText" width="35%">true</td>
      <td class="ItemLabel" width="10%">Blocked:</td>
-     <td class="ItemReport" width="15%">5</td>
+     <td class="ItemReport" width="15%">0</td>
      <td class="ItemReport" width="15%">42</td>
-     <td class="ItemReportHigh" width="15%">11.9 %</td>
+     <td class="ItemReportHigh" width="15%">0.0 %</td>
      </tr>
      </tbody>
      </table>
@@ -474,7 +474,7 @@
 <a name="37"><span class="lineNumber">      37 </span>double polyNotCovered(double x, double a, double b, double c) {</a>
 <a name="38"><button class="collapsible problem"><pre class="fileContents"><span class="lineNumber">      38 </span>  return a * x * x + b * x + c;</pre></button>
 <div class="content">
-<b>Mutations not covered by tests:</b>
+<b>Undetected mutations:</b>
 <table class="mutationTable" width="100%">
 <tr><td class="mutationLabel" width="5%">1 :</td><td class="mutationText" width="87%"><span class="addedLine">+   return a * x * x <span class="changedTokens">- </span>b * x + c;</span></td><td class="match">RegExp: pattern=\+([^=]) flags=m<span class="tooltip">Id: builtin.arith.add</span></td></tr><tr><td colspan="3"><hr class="ruler"/></td></tr><tr><td class="mutationLabel" width="5%">2 :</td><td class="mutationText" width="87%"><span class="addedLine">+   return a * x * x + b * x <span class="changedTokens">- </span>c;</span></td><td class="match">RegExp: pattern=\+([^=]) flags=m<span class="tooltip">Id: builtin.arith.add</span></td></tr><tr><td colspan="3"><hr class="ruler"/></td></tr><tr><td class="mutationLabel" width="5%">3 :</td><td class="mutationText" width="87%"><span class="addedLine">+   return a <span class="changedTokens">/ </span>x * x + b * x + c;</span></td><td class="match">RegExp: pattern=\*([^=]) flags=m<span class="tooltip">Id: builtin.arith.mul</span></td></tr><tr><td colspan="3"><hr class="ruler"/></td></tr><tr><td class="mutationLabel" width="5%">4 :</td><td class="mutationText" width="87%"><span class="addedLine">+   return a * x <span class="changedTokens">/ </span>x + b * x + c;</span></td><td class="match">RegExp: pattern=\*([^=]) flags=m<span class="tooltip">Id: builtin.arith.mul</span></td></tr><tr><td colspan="3"><hr class="ruler"/></td></tr><tr><td class="mutationLabel" width="5%">5 :</td><td class="mutationText" width="87%"><span class="addedLine">+   return a * x * x + b <span class="changedTokens">/ </span>x + c;</span></td><td class="match">RegExp: pattern=\*([^=]) flags=m<span class="tooltip">Id: builtin.arith.mul</span></td></tr></table>
 
@@ -506,7 +506,7 @@
 }
 </script><table width ="100%" cellspacing="0" border="0">
   <tr><td><hr class="ruler"/></td></tr>
-  <tr><td class="footer">Generated by mutation-test version: 1.6.0</td></tr>
+  <tr><td class="footer">Generated by mutation-test version: 1.6.1</td></tr>
 </table>
 </body>
 </html>

doc/output/example/source3.dart.html

@@ -348,7 +348,7 @@
 
      <tr>
      <td class="ItemLabel" width="10%">Date:</td>
-     <td class="ItemText" width="35%">2023-10-25 20:12:26.293830</td>
+     <td class="ItemText" width="35%">2024-03-24 15:27:37.231554</td>
      <td class="ItemLabel" width="10%">Mutations:</td>
      <td class="ItemReport" width="15%">0</td>
      <td class="ItemReport" width="15%">0</td>
@@ -407,7 +407,7 @@
 }
 </script><table width ="100%" cellspacing="0" border="0">
   <tr><td><hr class="ruler"/></td></tr>
-  <tr><td class="footer">Generated by mutation-test version: 1.6.0</td></tr>
+  <tr><td class="footer">Generated by mutation-test version: 1.6.1</td></tr>
 </table>
 </body>
 </html>

doc/output/mutation-test-report.html

@@ -348,20 +348,20 @@
 
      <tr>
      <td class="ItemLabel" width="10%">Date:</td>
-     <td class="ItemText" width="35%">2023-10-25 20:12:26.292830</td>
+     <td class="ItemText" width="35%">2024-03-24 15:27:37.229545</td>
      <td class="ItemLabel" width="10%">Mutations:</td>
-     <td class="ItemReport" width="15%">23</td>
-     <td class="ItemReport" width="15%">79</td>
-     <td class="ItemReportLow" width="15%">29.1 %</td>
+     <td class="ItemReport" width="15%">24</td>
+     <td class="ItemReport" width="15%">98</td>
+     <td class="ItemReportLow" width="15%">24.5 %</td>
      </tr>
 
      <tr>
      <td class="ItemLabel" width="10%">Builtin rules:</td>
      <td class="ItemText" width="35%">true</td>
      <td class="ItemLabel" width="10%">Blocked:</td>
-     <td class="ItemReport" width="15%">21</td>
-     <td class="ItemReport" width="15%">79</td>
-     <td class="ItemReportMedium" width="15%">26.6 %</td>
+     <td class="ItemReport" width="15%">0</td>
+     <td class="ItemReport" width="15%">98</td>
+     <td class="ItemReportHigh" width="15%">0.0 %</td>
      </tr>
      <tr>
      <td class="ItemLabel" width="10%">Quality rating:</td>
@@ -395,18 +395,18 @@
   </td>
   <td class="ItemReportMedium" width="10%">52.4 %</td>
   <td class="ItemReportMedium" width="10%">22 / 42</td>
-  <td class="ItemReportHigh" width="10%">5 / 42</td>
+  <td class="ItemReportHigh" width="10%">0 / 42</td>
 </tr>
 <tr><td class="FileLink" width="60%"><a href="example/source2.dart.html">example/source2.dart</a></td>
   <td class="ItemReport" width="10%">
   <table width="100%" cellpadding="0" border="1"><tr>
-    <td class="barLo" width="2.7027027027027026%" height="10"></td>
-    <td class="barBg" width="97.29729729729729%" height="10"></td>
+    <td class="barLo" width="3.5714285714285716%" height="10"></td>
+    <td class="barBg" width="96.42857142857143%" height="10"></td>
   </tr></table>
   </td>
-  <td class="ItemReportLow" width="10%">2.7 %</td>
-  <td class="ItemReportLow" width="10%">1 / 37</td>
-  <td class="ItemReportMedium" width="10%">16 / 37</td>
+  <td class="ItemReportLow" width="10%">3.6 %</td>
+  <td class="ItemReportLow" width="10%">2 / 56</td>
+  <td class="ItemReportHigh" width="10%">0 / 56</td>
 </tr>
 <tr><td class="FileLink" width="60%"><a href="example/source3.dart.html">example/source3.dart</a></td>
   <td class="ItemReport" width="10%">
@@ -426,7 +426,7 @@
 
 <table width ="100%" cellspacing="0" border="0">
   <tr><td><hr class="ruler"/></td></tr>
-  <tr><td class="footer">Generated by mutation-test version: 1.6.0</td></tr>
+  <tr><td class="footer">Generated by mutation-test version: 1.6.1</td></tr>
 </table>
 </body>
 </html>

example/config.xml

@@ -7,7 +7,7 @@
       <!-- lines can be whitelisted  -->
       <!-- if there is no whitelist, the whole file is used  -->
       <!-- line index starts at 1  -->
-      <lines begin="9" end="33"/>
+      <lines begin="9" end="60"/>
     </file>
     <file>example/source3.dart</file>
   </files>

example/source2.dart

@@ -43,4 +43,15 @@ class TestData {
       on = true;
     }
   }
+
+  List<double> values = [];
+  void fillList(double x) {
+    values = [x, calc(x), calc(number1)];
+  }
+
+  double voidCalls(double x) {
+    fillList(x);
+    format(x);
+    return x;
+  }
 }

lib/src/configuration/builtin_rules.dart

@@ -181,6 +181,17 @@ String _xmlRules() {
     <regex pattern="break;(\s+)case" id="builtin.switch.break">
       <mutation text="$1case"/>
     </regex>
+    <!-- Removes entries in a list in dart -->
+    <regex pattern="([=:>]\s*)\[([^\],]+),([^\]]+)\]" id="builtin.list.clear">
+      <mutation text="$1[]"/>
+    </regex>
+    <!-- Removes function calls that are not returned or assigned to a value -->
+    <regex pattern="([{]\s*)([^\(;=\s}]+\([^;]+\)\s*;)" id="builtin.function.removeVoidCall1">
+      <mutation text="$1"/>
+    </regex>
+    <regex pattern="([};]\s*)([^\(;=\s}]+\([^;]+\)\s*;)" id="builtin.function.removeVoidCall2">
+      <mutation text="$1"/>
+    </regex>
   </rules>
   <!-- This element creates a blacklist, allowing you to exclude parts from the mutations -->
   <exclude>

lib/src/version.dart

@@ -4,5 +4,5 @@
 
 /// Returns the version of this library.
 String mutationTestVersion() {
-  return 'mutation-test version: 1.6.0';
+  return 'mutation-test version: 1.6.1';
 }

pubspec.yaml

@@ -1,6 +1,6 @@
 name: mutation_test
 description: A command line application to measure the quality of your test cases by mutating your code and checking if your tests detect the changes.
-version: 1.6.0
+version: 1.6.1
 homepage: https://domohuhn.github.io/mutation-test/
 repository: https://github.com/domohuhn/mutation-test
 issue_tracker: https://github.com/domohuhn/mutation-test/issues

test/configuration/parse_xml_test.dart

@@ -14,7 +14,7 @@ void main() {
     final configuration = Configuration(mock, true);
     configuration.parseXMLString(builtinMutationRules());
     expect(configuration.exclusions.length, 10);
-    expect(configuration.mutations.length, 29);
+    expect(configuration.mutations.length, 32);
     expect(configuration.files.length, 0);
     expect(configuration.commands.length, 0);
   });
@@ -23,7 +23,7 @@ void main() {
     final configuration = Configuration(mock, true);
     configuration.parseXMLString(fullXMLFile());
     expect(configuration.exclusions.length, 10);
-    expect(configuration.mutations.length, 29);
+    expect(configuration.mutations.length, 32);
     expect(configuration.files.length, 2);
     expect(configuration.commands.length, 2);
     configuration.validate();

test/core/system_interactions_test.dart

@@ -59,7 +59,7 @@ void main() {
   test('list directory', () {
     var sys = SystemInteractions(true, false);
     final list = sys.listDirectoryContents(dir, false, []);
-    expect(list.length, 10);
+    expect(list.length, 9);
   });
 
   test('list directory with pattern', () {

test/example2_test.dart

@@ -24,4 +24,13 @@ void main() {
   test('TestData format 3', () {
     expect(data.format(2.0), 'default 2.0');
   });
+
+  test('TestData list', () {
+    data.fillList(2.0);
+    expect(data.values.length, 3);
+  });
+
+  test('TestData voidCalls', () {
+    expect(data.voidCalls(2.0), 2.0);
+  });
 }