test(assertions): improve assertions

packages/test-helpers/src/assertions.ts

@@ -20,29 +20,29 @@ import { File } from '@stryker-mutator/api/core';
 import { CheckResult, FailedCheckResult, CheckStatus } from '@stryker-mutator/api/check';
 
 export function expectKilled(result: MutantRunResult): asserts result is KilledMutantRunResult {
-  assert.equal(result.status, MutantRunStatus.Killed);
+  assert.strictEqual(result.status, MutantRunStatus.Killed, result.status === MutantRunStatus.Error ? result.errorMessage : '');
 }
 
 export function expectFailed(result: TestResult): asserts result is FailedTestResult {
-  assert.equal(result.status, TestStatus.Failed);
+  assert.strictEqual(result.status, TestStatus.Failed);
 }
 
 export function expectCompleted(runResult: DryRunResult): asserts runResult is CompleteDryRunResult {
-  assert.equal(runResult.status, DryRunStatus.Complete);
+  assert.strictEqual(runResult.status, DryRunStatus.Complete, runResult.status === DryRunStatus.Error ? runResult.errorMessage : 'Timeout occurred');
 }
 
 export function expectCompileError(checkResult: CheckResult): asserts checkResult is FailedCheckResult {
-  assert.equal(checkResult.status, CheckStatus.CompileError);
+  assert.strictEqual(checkResult.status, CheckStatus.CompileError);
 }
 
 export function expectErrored(runResult: MutantRunResult): asserts runResult is ErrorMutantRunResult;
 export function expectErrored(runResult: DryRunResult): asserts runResult is ErrorDryRunResult;
 export function expectErrored(runResult: DryRunResult | MutantRunResult): asserts runResult is ErrorDryRunResult | MutantRunResult;
 export function expectErrored(runResult: DryRunResult | MutantRunResult): void {
-  assert.equal(runResult.status, DryRunStatus.Error);
+  assert.strictEqual(runResult.status, DryRunStatus.Error);
 }
 export function expectSurvived(runResult: MutantRunResult): asserts runResult is SurvivedMutantRunResult {
-  assert.equal(runResult.status, MutantRunStatus.Survived);
+  assert.strictEqual(runResult.status, MutantRunStatus.Survived, runResult.status === MutantRunStatus.Error ? runResult.errorMessage : '');
 }
 
 export function expectTextFileEqual(actual: File, expected: File): void {