diff --git a/.dependabot/config.yml b/.dependabot/config.yml
index a3bd09e6..6825a80a 100644
--- a/.dependabot/config.yml
+++ b/.dependabot/config.yml
@@ -3,7 +3,10 @@
 version: 1
 
 update_configs:
-  - default_assignees:
+  - automerged_updates:
+      - match:
+          dependency_type: "development"
+    default_assignees:
       - "localheinz"
     default_labels:
       - "dependency"
diff --git a/.github/settings.yml b/.github/settings.yml
index e7f323ae..3fe7fb42 100644
--- a/.github/settings.yml
+++ b/.github/settings.yml
@@ -1,7 +1,11 @@
 # https://github.com/probot/settings
 
 branches:
-  - name: master
+  - name: "master"
+
+    # https://developer.github.com/v3/repos/branches/#remove-branch-protection
+    # https://developer.github.com/v3/repos/branches/#update-branch-protection
+
     protection:
       enforce_admins: false
       required_pull_request_reviews:
@@ -30,37 +34,56 @@ branches:
           - "codecov/patch"
           - "codecov/project"
         strict: false
-      restrictions: null
+      restrictions:
+        apps:
+          - "dependabot-preview"
+        teams: []
+        users: []
+
+# https://developer.github.com/v3/issues/labels/#create-a-label
+# https://developer.github.com/v3/issues/labels/#update-a-label
 
 labels:
-  - name: bug
-    color: ee0701
+  - name: "bug"
+    color: "#ee0701"
+    description: ""
 
-  - name: dependency
-    color: 0366d6
+  - name: "dependency"
+    color: "#0366d6"
+    description: ""
 
-  - name: enhancement
-    color: 0e8a16
+  - name: "enhancement"
+    color: "#0e8a16"
+    description: ""
 
-  - name: question
-    color: cc317c
+  - name: "question"
+    color: "#cc317c"
+    description: ""
 
-  - name: security
-    color: ee0701
+  - name: "security"
+    color: "#ee0701"
+    description: ""
 
-  - name: stale
-    color: eeeeee
+  - name: "stale"
+    color: "#eeeeee"
+    description: ""
+
+# https://developer.github.com/v3/repos/#edit
 
 repository:
   allow_merge_commit: true
   allow_rebase_merge: false
   allow_squash_merge: false
-  default_branch: master
+  default_branch: "master"
   description: ":eyeglasses: Provides utilities for tests."
   has_downloads: true
   has_issues: true
   has_pages: false
   has_projects: false
   has_wiki: false
-  name: test-util
+  name: "test-util"
   private: false
+
+  # https://developer.github.com/v3/repos/branches/#remove-branch-protection
+
+  topics: "phpunit, phpunit-util, phpunit-assertions, faker"
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 05271a78..579da013 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -4,287 +4,285 @@ on:
   pull_request:
   push:
     branches:
-      - master
+      - "master"
     tags:
       - "**"
 
 name: "Continuous Integration"
 
+env:
+  MIN_COVERED_MSI: 95
+  MIN_MSI: 95
+  REQUIRED_PHP_EXTENSIONS: "mbstring"
+
 jobs:
   coding-standards:
     name: "Coding Standards"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.1
+          - "7.1"
 
         dependencies:
-          - locked
+          - "locked"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: none
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "none"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Validate composer.json and composer.lock"
-        run: composer validate --strict
+        run: "composer validate --strict"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Install locked dependencies with composer"
-        run: composer install --no-interaction --no-progress --no-suggest
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Run ergebnis/composer-normalize"
-        run: composer normalize --dry-run
+        run: "composer normalize --dry-run"
 
       - name: "Create cache directory for friendsofphp/php-cs-fixer"
-        run: mkdir -p .build/php-cs-fixer
+        run: "mkdir -p .build/php-cs-fixer"
 
       - name: "Cache cache directory for friendsofphp/php-cs-fixer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: .build/php-cs-fixer
-          key: php-${{ matrix.php-version }}-php-cs-fixer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-php-cs-fixer-
+          path: ".build/php-cs-fixer"
+          key: "php-${{ matrix.php-version }}-php-cs-fixer-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-php-cs-fixer-"
 
       - name: "Run friendsofphp/php-cs-fixer"
-        run: vendor/bin/php-cs-fixer fix --config=.php_cs --diff --diff-format=udiff --dry-run --verbose
+        run: "vendor/bin/php-cs-fixer fix --config=.php_cs --diff --diff-format=udiff --dry-run --verbose"
 
       - name: "Run friendsofphp/php-cs-fixer for test fixtures"
-        run: vendor/bin/php-cs-fixer fix --config=.php_cs.fixture --diff --diff-format=udiff --using-cache=no --verbose
+        run: "vendor/bin/php-cs-fixer fix --config=.php_cs.fixture --diff --diff-format=udiff --using-cache=no --verbose"
 
   dependency-analysis:
     name: "Dependency Analysis"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.4
+          - "7.4"
 
         dependencies:
-          - locked
+          - "locked"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: none
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "none"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Install locked dependencies with composer"
-        run: composer install --no-interaction --no-progress --no-suggest
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Run maglnet/composer-require-checker"
-        uses: docker://webfactory/composer-require-checker:2.0.0
+        uses: "docker://webfactory/composer-require-checker:2.0.0"
         with:
-          args: check --config-file=composer-require-checker.json
+          args: "check --config-file=composer-require-checker.json"
 
   static-code-analysis:
     name: "Static Code Analysis"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.4
+          - "7.4"
 
         dependencies:
-          - locked
+          - "locked"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: none
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "none"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: ${{ matrix.php-version }}-composer-locked-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            ${{ matrix.php-version }}-composer-locked-
+          path: "~/.composer/cache"
+          key: "${{ matrix.php-version }}-composer-locked-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "${{ matrix.php-version }}-composer-locked-"
 
       - name: "Install locked dependencies with composer"
-        run: composer install --no-interaction --no-progress --no-suggest
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Run phpstan/phpstan"
-        run: vendor/bin/phpstan analyse --configuration=phpstan.neon
+        run: "vendor/bin/phpstan analyse --configuration=phpstan.neon"
 
   tests:
     name: "Tests"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.1
-          - 7.2
-          - 7.3
-          - 7.4
+          - "7.1"
+          - "7.2"
+          - "7.3"
+          - "7.4"
 
         dependencies:
-          - lowest
-          - locked
-          - highest
+          - "lowest"
+          - "locked"
+          - "highest"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: none
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "none"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Install lowest dependencies with composer"
-        if: matrix.dependencies == 'lowest'
-        run: composer update --no-interaction --no-progress --no-suggest --prefer-lowest
+        if: "matrix.dependencies == 'lowest'"
+        run: "composer update --no-interaction --no-progress --no-suggest --prefer-lowest"
 
       - name: "Install locked dependencies with composer"
-        if: matrix.dependencies == 'locked'
-        run: composer install --no-interaction --no-progress --no-suggest
+        if: "matrix.dependencies == 'locked'"
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Install highest dependencies with composer"
-        if: matrix.dependencies == 'highest'
-        run: composer update --no-interaction --no-progress --no-suggest
+        if: "matrix.dependencies == 'highest'"
+        run: "composer update --no-interaction --no-progress --no-suggest"
 
       - name: "Run auto-review tests with phpunit/phpunit"
-        run: vendor/bin/phpunit --configuration=test/AutoReview/phpunit.xml
+        run: "vendor/bin/phpunit --configuration=test/AutoReview/phpunit.xml"
 
       - name: "Run unit tests with phpunit/phpunit"
-        run: vendor/bin/phpunit --configuration=test/Unit/phpunit.xml
+        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml"
 
       - name: "Run integration tests with phpunit/phpunit"
-        run: vendor/bin/phpunit --configuration=test/Integration/phpunit.xml
+        run: "vendor/bin/phpunit --configuration=test/Integration/phpunit.xml"
 
   code-coverage:
     name: "Code Coverage"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.4
+          - "7.4"
 
         dependencies:
-          - locked
+          - "locked"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: xdebug
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "xdebug"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Install locked dependencies with composer"
-        run: composer install --no-interaction --no-progress --no-suggest
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
       - name: "Dump Xdebug filter with phpunit/phpunit"
-        run: vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --dump-xdebug-filter=.build/phpunit/xdebug-filter.php
+        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --dump-xdebug-filter=.build/phpunit/xdebug-filter.php"
 
       - name: "Collect code coverage with Xdebug and phpunit/phpunit"
-        run: vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-clover=build/logs/clover.xml --prepend=.build/phpunit/xdebug-filter.php
+        run: "vendor/bin/phpunit --configuration=test/Unit/phpunit.xml --coverage-clover=.build/logs/clover.xml --prepend=.build/phpunit/xdebug-filter.php"
 
       - name: "Send code coverage report to Codecov.io"
         env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-        run: bash <(curl -s https://codecov.io/bash)
+          CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
+        run: "bash <(curl -s https://codecov.io/bash)"
 
   mutation-tests:
     name: "Mutation Tests"
 
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
 
     strategy:
       matrix:
         php-version:
-          - 7.4
+          - "7.4"
 
         dependencies:
-          - locked
+          - "locked"
 
     steps:
       - name: "Checkout"
-        uses: actions/checkout@v2.0.0
+        uses: "actions/checkout@v2.0.0"
 
       - name: "Install PHP with extensions"
-        uses: shivammathur/setup-php@1.6.1
+        uses: "shivammathur/setup-php@1.6.2"
         with:
-          coverage: xdebug
-          extensions: "mbstring"
-          php-version: ${{ matrix.php-version }}
+          coverage: "xdebug"
+          extensions: "${{ env.REQUIRED_PHP_EXTENSIONS }}"
+          php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies installed with composer"
-        uses: actions/cache@v1.0.3
+        uses: "actions/cache@v1.0.3"
         with:
-          path: ~/.composer/cache
-          key: php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}
-          restore-keys: |
-            php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-
+          path: "~/.composer/cache"
+          key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('**/composer.lock') }}"
+          restore-keys: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-"
 
       - name: "Install locked dependencies with composer"
-        run: composer install --no-interaction --no-progress --no-suggest
+        run: "composer install --no-interaction --no-progress --no-suggest"
 
-      - name: "Run mutation tests with Xdebug and infection/infection"
-        run: vendor/bin/infection --ignore-msi-with-no-mutations --min-covered-msi=95 --min-msi=95
+      - name: "Run mutation tests with pcov and infection/infection"
+        run: "vendor/bin/infection --ignore-msi-with-no-mutations --min-covered-msi=${{ env.MIN_COVERED_MSI }} --min-msi=${{ env.MIN_MSI }}"
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 8125fd9e..90a675b1 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -8,11 +8,12 @@ on:
 
 jobs:
   stale:
-    runs-on: ubuntu-latest
+    runs-on: "ubuntu-latest"
+
     steps:
-      - uses: actions/stale@v1
+      - uses: "actions/stale@v1.1.0"
         with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
           days-before-stale: 60
           days-before-close: 5
           stale-issue-label: 'stale'
@@ -24,4 +25,4 @@ jobs:
             This PR has been automatically marked as stale because it has not had
             recent activity. It will be closed if no further activity occurs. Thank you
             for your contributions.
-          stale-pr-label: 'stale'
+          stale-pr-label: "stale"
diff --git a/Makefile b/Makefile
index 9fbc8652..36955f8d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,6 @@
+MIN_COVERED_MSI:=95
+MIN_MSI:=95
+
 .PHONY: it
 it: coding-standards dependency-analysis static-code-analysis tests ## Runs the coding-standards, dependency-analysis, static-code-analysis, and tests targets
 
@@ -24,7 +27,7 @@ help: ## Displays this list of targets with descriptions
 .PHONY: mutation-tests
 mutation-tests: vendor ## Runs mutation tests with infection/infection
 	mkdir -p .build/infection
-	vendor/bin/infection --ignore-msi-with-no-mutations --min-covered-msi=95 --min-msi=95
+	vendor/bin/infection --ignore-msi-with-no-mutations --min-covered-msi=${MIN_COVERED_MSI} --min-msi=${MIN_MSI}
 
 .PHONY: static-code-analysis
 static-code-analysis: vendor ## Runs a static code analysis with phpstan/phpstan