Implementation of mutation levels

e2e/test/ignore-project/stryker.conf.json

@@ -4,7 +4,8 @@
   "concurrency": 2,
   "coverageAnalysis": "perTest",
   "mutator": {
-    "excludedMutations": ["ArithmeticOperator", "BlockStatement"]
+    "includedMutations": ["@StringLiteral", "@ConditionalExpression", "@EqualityOperator", "@LogicalOperator", "@BooleanLiteral"],
+    "excludedMutations": ["@ArithmeticOperator", "BlockStatementRemoval"]
   },
   "reporters": [
     "clear-text",

e2e/test/ignore-project/verify/verify.js

@@ -30,14 +30,37 @@ describe('After running stryker on jest-react project', () => {
     });
   });
 
-  it('should report mutants that result from excluded mutators with the correct ignore reason', async () => {
+  it('should report mutants that are excluded from the excludedMutation list with the correct ignore reason', async () => {
     const report = await readMutationTestingJsonResult();
     const circleResult = report.files['src/Circle.js'];
     const mutantsAtLine3 = circleResult.mutants.filter(({ location }) => location.start.line === 3);
     expect(mutantsAtLine3).lengthOf(2);
     mutantsAtLine3.forEach((mutant) => {
       expect(mutant.status).eq('Ignored');
-      expect(mutant.statusReason).eq('Ignored because of excluded mutation "ArithmeticOperator"');
+      expect(mutant.statusReason).eq('Ignored by level');
+    });
+  });
+
+  it('should report mutants that are excluded because they were not in the includedMutations list', async () => {
+    const report = await readMutationTestingJsonResult();
+    const addResult = report.files['src/Add.js'];
+    const mutantsAtLine7 = addResult.mutants.filter(({ location }) => location.start.line === 7);
+    const updateOperatorMutants = mutantsAtLine7.filter(({ mutatorName }) => mutatorName === 'UpdateOperator');
+
+    const mutantsAtLine14 = addResult.mutants.filter(({ location }) => location.start.line === 14);
+    const unaryOperatorMutants = mutantsAtLine14.filter(({ mutatorName }) => mutatorName === 'UnaryOperator');
+
+    expect(updateOperatorMutants).lengthOf(1);
+    expect(unaryOperatorMutants).lengthOf(1);
+
+    updateOperatorMutants.forEach((updateMutant) => {
+      expect(updateMutant.status).eq('Ignored');
+      expect(updateMutant.statusReason).eq('Ignored by level');
+    });
+
+    unaryOperatorMutants.forEach((updateMutant) => {
+      expect(updateMutant.status).eq('Ignored');
+      expect(updateMutant.statusReason).eq('Ignored by level');
     });
   });
 

e2e/test/ignore-project/verify/verify.js.snap

@@ -3,20 +3,20 @@
 exports[`After running stryker on jest-react project should report expected scores 1`] = `
 Object {
   "compileErrors": 0,
-  "ignored": 32,
-  "killed": 8,
-  "mutationScore": 50,
+  "ignored": 34,
+  "killed": 6,
+  "mutationScore": 42.857142857142854,
   "mutationScoreBasedOnCoveredCode": 100,
   "noCoverage": 8,
   "pending": 0,
   "runtimeErrors": 0,
   "survived": 0,
   "timeout": 0,
-  "totalCovered": 8,
-  "totalDetected": 8,
+  "totalCovered": 6,
+  "totalDetected": 6,
   "totalInvalid": 0,
   "totalMutants": 48,
   "totalUndetected": 8,
-  "totalValid": 16,
+  "totalValid": 14,
 }
 `;

e2e/test/reporters-e2e/verify/verify.js

@@ -77,4 +77,4 @@ describe('Verify stryker has ran correctly', () => {
 const createTestsRegex = () => /All tests\s*AddSpec\.js\s*\s*✓ Add should be able to add two numbers \(killed 2\)/;
 const createNoCoverageMutantRegex = () => /\[NoCoverage\]/;
 const createSurvivedMutantRegex = () => /\[Survived\]/;
-const createClearTextTableSummaryRowRegex = () => /All files\s*\|\s*64\.00\s*\|\s*16\s*\|\s*0\s*\|\s*1\s*\|\s*8\s*\|\s*0\s*\|/;
+const createClearTextTableSummaryRowRegex = () => /All files\s*\|\s*64\.00\s*\|\s*64\.00\s*\|\s*16\s*\|\s*0\s*\|\s*1\s*\|\s*8\s*\|\s*0\s*\|/;