Add support for PHP 8

.travis.yml

@@ -4,19 +4,13 @@ matrix:
   include:
     - php: 7.2
       dist: bionic
-      env: COMPOSER_OPTS=""
     - php: 7.3
       dist: bionic
-      env: COMPOSER_OPTS=""
     - php: 7.4
       dist: bionic
-      env: COMPOSER_OPTS=""
     - php: nightly
       dist: bionic
-      env: COMPOSER_OPTS="--ignore-platform-reqs"
-  allow_failures:
-    - php: nightly
-      env: COMPOSER_OPTS="--ignore-platform-reqs"
+      env: COMPOSER_OPTS="--ignore-platform-req=php"
 
 cache:
   directories:
@@ -25,10 +19,28 @@ cache:
 install:
   - travis_retry composer install $COMPOSER_OPTS
 
+  # Where PHPUnit v8 is used, we need to replace the config.
+  - if [[ ${TRAVIS_PHP_VERSION:0:1} == "7" ]]
+    && [ ${TRAVIS_PHP_VERSION:2:1} -lt 4 ]; then
+      cp -v tests/phpunit.legacy.xml tests/phpunit.xml
+    ; fi
+
+  # PHPUnit 9 supports 7.3, but Infection PHP 18 can't read
+  # its config so instead we downgrade to PHPUnit 8.5 here.
+  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7.3" ]]; then
+      travis_retry composer require -W phpunit/phpunit:^8.5
+    ; fi
+
 script:
   - vendor/bin/grumphp run
   - composer test
-  - composer infection
+
+  - if [[ ${TRAVIS_PHP_VERSION:0:1} == "7" ]]; then composer infection; else
+      vendor/bin/infection --ansi --threads=4
+        --initial-tests-php-options="-d xdebug.mode=coverage"
+        --only-covered --min-msi=100 --min-covered-msi=100
+    ; fi
+
   - composer psalm
 
 after_success: bash <(curl -s https://codecov.io/bash)

composer.json

@@ -7,12 +7,12 @@
         "process-timeout": 0
     },
     "require-dev": {
-        "phpunit/phpunit": "^8.5",
-        "vimeo/psalm": "^3.11",
-        "infection/infection": "^0.15.3",
-        "spatie/phpunit-watcher": "^1.22",
-        "phpunit/php-invoker": "^2.0",
-        "pluswerk/grumphp-config": "^3.0"
+        "phpunit/phpunit": "^8.5 || ^9.4",
+        "vimeo/psalm": "^4.1",
+        "infection/infection": "^0.15.3 || ^0.18.2 || ^0.20.1",
+        "spatie/phpunit-watcher": "^1.24 || dev-master#071fbbf",
+        "phpunit/php-invoker": "^2.0 || ^3.1",
+        "pluswerk/grumphp-config": "^4.0.1"
     },
     "license": "MIT",
     "authors": [

src/Conditional/BasicExpression.php

@@ -17,7 +17,7 @@ abstract class BasicExpression implements ShellInterface
      * This is not POSIX-compatible (only eg. Korn and Bash), beware before using it
      * @var bool
      */
-    protected $bashEnhancedBrackets;
+    protected $bashEnhancedBrackets = false;
     /** @var bool this is always double quoted */
     protected $escapedValue = false;
     /** @var bool */

src/Literal/ShellWord.php

@@ -64,9 +64,9 @@ class ShellWord implements ShellInterface
     /** @var string */
     protected $delimiter = ' ';
     /** @var string */
-    protected $argument;
+    protected $argument = '';
     /** @var string|ShellInterface */
-    protected $value;
+    protected $value = '';
 
     /**
      * The constructor is protected, you must choose one of the children

tests/Collection/CollectionTupleTest.php

@@ -45,6 +45,13 @@ public function testTupleToArray(): void
         $this->assertEquals(['||', 'a'], $tuple->__toArray());
     }
 
+    public function testToArrayWithBuilder(): void
+    {
+        $builder = ShellBuilder::command('echo')->addArgument('hunter1');
+        $tuple = CollectionTuple::create($builder, ControlOperator::AND_OPERATOR);
+        $this->assertEquals(['&&', $builder->__toArray()], $tuple->__toArray());
+    }
+
     public function testWithoutCreatingTuple(): void
     {
         $tuple = new Pipeline();

tests/ShellBuilderTest.php

@@ -756,7 +756,7 @@ static function (ShellBuilder $builder) {
 
     public function testComplexCondiditionalArgumentsWithWrongArguments(): void
     {
-        self::expectException(\ErrorException::class);
+        self::expectException(\AssertionError::class);
         ShellBuilder::new()
             ->ifThis(static function (ShellBuilder $builder) {
                 return 'world';
@@ -769,7 +769,7 @@ public function testComplexCondiditionalArgumentsWithWrongArguments(): void
 
     public function testCondiditionalArgumentsWithWrongArguments(): void
     {
-        self::expectException(\ErrorException::class);
+        self::expectException(\AssertionError::class);
         ShellBuilder::new()
             ->if(
                 true,

tests/phpunit-bootstrap.php

@@ -3,6 +3,7 @@
 declare(strict_types=1);
 
 error_reporting(E_ALL);
+ini_set('assert.exception', '1');
 ini_set('display_errors', '1');
 
 // Currently phpunit's default error handling doesn't properly catch warnings / errors from data providers

tests/phpunit.legacy.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit
+        bootstrap="phpunit-bootstrap.php"
+        convertErrorsToExceptions="true"
+        convertNoticesToExceptions="true"
+        convertWarningsToExceptions="true"
+        beStrictAboutTestsThatDoNotTestAnything="true"
+        beStrictAboutCoversAnnotation="true"
+        beStrictAboutOutputDuringTests="true"
+        beStrictAboutChangesToGlobalState="true"
+        enforceTimeLimit="true"
+        executionOrder="default"
+        resolveDependencies="true"
+        timeoutForLargeTests="1"
+        timeoutForMediumTests="1"
+        timeoutForSmallTests="1"
+        colors="true">
+    <testsuites>
+        <testsuite name="All">
+            <directory suffix="Test.php">../tests/</directory>
+        </testsuite>
+    </testsuites>
+    <filter>
+        <whitelist>
+            <directory suffix=".php">../src/</directory>
+        </whitelist>
+    </filter>
+    <logging>
+        <log type="coverage-html" target="test-results/report" lowUpperBound="49" highLowerBound="89"/>
+        <log type="coverage-clover" target="test-results/coverage.xml"/>
+        <log type="coverage-text" target="test-results/report.txt" showUncoveredFiles="false"/>
+        <log type="junit" target="test-results/logfile.xml"/>
+        <log type="testdox-html" target="test-results/testdox.html"/>
+        <log type="testdox-text" target="test-results/testdox.txt"/>
+    </logging>
+</phpunit>

tests/phpunit.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         bootstrap="phpunit-bootstrap.php"
         convertErrorsToExceptions="true"
         convertNoticesToExceptions="true"
@@ -14,23 +14,26 @@
         timeoutForLargeTests="1"
         timeoutForMediumTests="1"
         timeoutForSmallTests="1"
-        colors="true">
+        colors="true"
+        xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+    <coverage>
+        <include>
+            <directory suffix=".php">../src/</directory>
+        </include>
+        <report>
+            <clover outputFile="test-results/coverage.xml"/>
+            <html outputDirectory="test-results/report" lowUpperBound="49" highLowerBound="89"/>
+            <text outputFile="test-results/report.txt" showUncoveredFiles="false"/>
+        </report>
+    </coverage>
     <testsuites>
         <testsuite name="All">
             <directory suffix="Test.php">../tests/</directory>
         </testsuite>
     </testsuites>
-    <filter>
-        <whitelist>
-            <directory suffix=".php">../src/</directory>
-        </whitelist>
-    </filter>
     <logging>
-        <log type="coverage-html" target="test-results/report" lowUpperBound="49" highLowerBound="89"/>
-        <log type="coverage-clover" target="test-results/coverage.xml"/>
-        <log type="coverage-text" target="test-results/report.txt" showUncoveredFiles="false"/>
-        <log type="junit" target="test-results/logfile.xml"/>
-        <log type="testdox-html" target="test-results/testdox.html"/>
-        <log type="testdox-text" target="test-results/testdox.txt"/>
+        <junit outputFile="test-results/logfile.xml"/>
+        <testdoxHtml outputFile="test-results/testdox.html"/>
+        <testdoxText outputFile="test-results/testdox.txt"/>
     </logging>
 </phpunit>