chore(deps): update stryker monorepo to v3 (major)

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@stryker-mutator/core	devDependencies	major	2.5.0 -> 3.0.0
@stryker-mutator/html-reporter	devDependencies	major	2.5.0 -> 3.0.0
@stryker-mutator/javascript-mutator	devDependencies	major	2.5.0 -> 3.0.0
@stryker-mutator/jest-runner	devDependencies	major	2.5.0 -> 3.0.0

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Release Notes

stryker-mutator/stryker

v3.0.0

Compare Source

Bug Fixes

• api: allow for different api versions of File (#​2042) (9d1fcc1), closes #​2025
• mocha: support mutants with "runAllTests" (#​2037) (a9da18a), closes #​2032

Features

• api: Document StrykerOptions in JSON schema (4bdb7a1)
• config: Allow a stryker.conf.json as default config file. (#​2092) (2279813)
• core: exit code 1 when error in initial run (49c5162)
• Dashboard reporter: upload full html report by default (#​2039) (e23dbe1)
• excludedMutations: remove deprecated mutation names (#​2027) (6f7bfe1)
• HtmlReporter: include the html reporter in the core package and add it to the default reporters (#​2036) (09702d9), closes #​1919
• Initializer: Initialize config file as JSON by default (#​2093) (e07d953), closes #​2000
• jest-runner: support Jest 25 (b45e872), closes #​1983
• karma-runner: disable client.clearContext (#​2048) (27c0787)
• karma-runner: use ChromeHeadless as the default browser (#​2035) (18bf9b6)
• promisified fs: use node 10 promisified functions (#​2028) (1c57d8f)
• react: change react to create-react-app (#​1978) (7f34f28)
• Reporter.onScoreCalculated: remove deprecated onScoreCalculatedevent (#​2026) (9fa4175)

BREAKING CHANGES

• core: Stryker now exists with exitCode 1 if an error of any kind occurs.
• karma-runner: The @​stryker-mutator/karma-runner will now use ChromeHeadless by default (instead of PhantomJS)
• Reporter.onScoreCalculated: Please use the onMutationTestReportReady event and the mutation-testing-metrics npm package to calculate the mutation testing report metrics.

This

class MyReporter {
  onScoreCalculated(scoreResult) {
     // => do stuff with score result
  }
}

Becomes this:

import { calculateMetrics } from 'mutation-testing-metrics';
class MyReporter {
  onMutationTestingReportReady(report){
    const reportMetrics = calculateMetrics(report.files);
    // => do stuff with report metrics
  }
}

• HtmlReporter: the html reporter is now enabled by default. If you don't want to use it, be sure to override the reporters configuration option.

{
  "reporters": ["progress", "clear-text"]
}

• Dashboard reporter: The dashboard reporter will now upload a full report by default. If you don't want that, you can disable it with:

{
  "dashboard": {
    "reportType": "mutationScore"
   }
}

• excludedMutations: removes auto-fix for the old names of mutations.

Migrating:

Almost every mutator has been renamed and/or split. Stryker will warn you about any deprecated mutator names in the mutator.excludedMutations section of your config.

To migrate, please run stryker to see if your project is affected. If this is the case, please take a look at the mutator types on the handbook (see above).

These are the changes:

Old mutation	New mutation(s)
ArrayLiteral	ArrayDeclaration
ArrayNewExpression	ArrayDeclaration
BinaryExpression	ArithmeticOperator, EqualityOperator, LogicalOperator
Block	BlockStatement
BooleanSubstitution	BooleanLiteral
DoStatement	ConditionalExpression
ForStatement	ConditionalExpression
IfStatement	ConditionalExpression
PrefixUnaryExpression	UnaryOperator, UpdateOperator, BooleanLiteral
PostfixUnaryExpression	UpdateOperator
SwitchCase	ConditionalExpression
WhileStatement	ConditionalExpression

New mutations

Due to the migration, some new mutations were added to the javascript mutator.

• The mutation ArrayDeclaration will now mutate new Array() to new Array([])
• The mutation ArrayDeclaration will now mutate [] to ["Stryker was here"]

These mutations were already performed by the typescript mutator.

• promisified fs: removed fsAsPromised from @​stryker-mutator/util

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[jimmyandrade]

Good news coming from stryker-mutator/stryker-js#1983 (comment)

[jimmyandrade]

OK