Bump up PHP version constraint.

.gitignore

@@ -6,3 +6,4 @@
 /phpunit.xml
 /test/TestAsset/.cache/
 /vendor/
+.phpunit.result.cache

.travis.yml

@@ -13,38 +13,28 @@ env:
 matrix:
   fast_finish: true
   include:
-    - php: 7.1
-      env:
-        - DEPS=lowest
-    - php: 7.1
-      env:
-        - DEPS=latest
-        - CS_CHECK=true
-        - TEST_COVERAGE=true
-    - php: 7.2
-      env:
-        - DEPS=lowest
-    - php: 7.2
-      env:
-        - DEPS=latest
     - php: 7.3
       env:
         - DEPS=lowest
     - php: 7.3
       env:
         - DEPS=latest
+        - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.4
       env:
         - DEPS=lowest
     - php: 7.4
       env:
         - DEPS=latest
+    - php: 'nightly'
+      env:
+        - DEPS=latest
 
 before_install:
-  - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
+  - if [[ $TEST_COVERAGE != 'true' && $TRAVIS_PHP_VERSION != 'nightly' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
 
 install:
-  - travis_retry composer install $COMPOSER_ARGS
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi

composer.json

@@ -32,7 +32,7 @@
         }
     },
     "require": {
-        "php": "^7.1",
+        "php": "^7.3 || ^8.0",
         "laminas/laminas-zendframework-bridge": "^1.0",
         "psr/http-factory": "^1.0",
         "psr/http-message": "^1.0"
@@ -41,10 +41,11 @@
         "ext-curl": "*",
         "ext-dom": "*",
         "ext-libxml": "*",
-        "http-interop/http-factory-tests": "^0.5.0",
+        "http-interop/http-factory-tests": "^0.7.0",
         "laminas/laminas-coding-standard": "~1.0.0",
-        "php-http/psr7-integration-tests": "^1.0",
-        "phpunit/phpunit": "^7.5.18"
+        "php-http/psr7-integration-tests": "^1.1",
+        "phpspec/prophecy-phpunit": "^2.0",
+        "phpunit/phpunit": "^9.1"
     },
     "provide": {
         "psr/http-factory-implementation": "1.0",

test/RelativeStreamTest.php

@@ -14,6 +14,7 @@
 use Laminas\Diactoros\Stream;
 use PHPUnit\Framework\TestCase;
 use Prophecy\Argument;
+use Prophecy\PhpUnit\ProphecyTrait;
 use RuntimeException;
 
 use const SEEK_SET;
@@ -23,6 +24,8 @@
  */
 class RelativeStreamTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testToString()
     {
         $decorated = $this->prophesize(Stream::class);

test/Request/SerializerTest.php

@@ -54,8 +54,8 @@ public function testSerializesRequestWithBody()
             ->withBody($stream);
 
         $message = Serializer::toString($request);
-        $this->assertContains("POST /foo/bar HTTP/1.1\r\n", $message);
-        $this->assertContains("\r\n\r\n" . $body, $message);
+        $this->assertStringContainsString("POST /foo/bar HTTP/1.1\r\n", $message);
+        $this->assertStringContainsString("\r\n\r\n" . $body, $message);
     }
 
     public function testSerializesMultipleHeadersCorrectly()
@@ -67,8 +67,8 @@ public function testSerializesMultipleHeadersCorrectly()
             ->withAddedHeader('X-Foo-Bar', 'Bat');
 
         $message = Serializer::toString($request);
-        $this->assertContains("X-Foo-Bar: Baz", $message);
-        $this->assertContains("X-Foo-Bar: Bat", $message);
+        $this->assertStringContainsString("X-Foo-Bar: Baz", $message);
+        $this->assertStringContainsString("X-Foo-Bar: Bat", $message);
     }
 
     public function originForms()

test/RequestTest.php

@@ -342,7 +342,7 @@ public function testGetHeadersContainsHostHeaderIfUriWithHostIsPresent()
         $request = new Request('http://example.com');
         $headers = $request->getHeaders();
         $this->assertArrayHasKey('Host', $headers);
-        $this->assertContains('example.com', $headers['Host']);
+        $this->assertStringContainsString('example.com', $headers['Host'][0]);
     }
 
     /**
@@ -421,7 +421,7 @@ public function testGetHostHeaderLineReturnsUriHostWhenPresent()
     {
         $request = new Request('http://example.com');
         $header = $request->getHeaderLine('host');
-        $this->assertContains('example.com', $header);
+        $this->assertStringContainsString('example.com', $header);
     }
 
     /**

test/Response/HtmlResponseTest.php

@@ -14,9 +14,12 @@
 use Laminas\Diactoros\Response\HtmlResponse;
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\StreamInterface;
+use Prophecy\PhpUnit\ProphecyTrait;
 
 class HtmlResponseTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testConstructorAcceptsHtmlString()
     {
         $body = '<html>Uh oh not found</html>';

test/Response/JsonResponseTest.php

@@ -128,7 +128,7 @@ public function testUsesSaneDefaultJsonEncodingFlags($value, $key)
         $contents = (string) $stream;
 
         $expected = json_encode($value, $defaultFlags);
-        $this->assertContains(
+        $this->assertStringContainsString(
             $expected,
             $contents,
             sprintf('Did not encode %s properly; expected (%s), received (%s)', $key, $expected, $contents)

test/Response/SerializerTest.php

@@ -56,8 +56,8 @@ public function testSerializesMultipleHeadersCorrectly()
             ->withAddedHeader('X-Foo-Bar', 'Bat');
 
         $message = Serializer::toString($response);
-        $this->assertContains("X-Foo-Bar: Baz", $message);
-        $this->assertContains("X-Foo-Bar: Bat", $message);
+        $this->assertStringContainsString("X-Foo-Bar: Baz", $message);
+        $this->assertStringContainsString("X-Foo-Bar: Bat", $message);
     }
 
     public function testOmitsReasonPhraseFromStatusLineIfEmpty()
@@ -68,7 +68,7 @@ public function testOmitsReasonPhraseFromStatusLineIfEmpty()
         $response->getBody()->write('Content!');
 
         $message = Serializer::toString($response);
-        $this->assertContains("HTTP/1.1 299\r\n", $message);
+        $this->assertStringContainsString("HTTP/1.1 299\r\n", $message);
     }
 
     public function testCanDeserializeBasicResponse()

test/Response/TextResponseTest.php

@@ -14,9 +14,12 @@
 use Laminas\Diactoros\Response\TextResponse;
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\StreamInterface;
+use Prophecy\PhpUnit\ProphecyTrait;
 
 class TextResponseTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testConstructorAcceptsBodyAsString()
     {
         $body = 'Uh oh not found';

test/Response/XmlResponseTest.php

@@ -14,11 +14,14 @@
 use Laminas\Diactoros\Response\XmlResponse;
 use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\StreamInterface;
+use Prophecy\PhpUnit\ProphecyTrait;
 
 use const PHP_EOL;
 
 class XmlResponseTest extends TestCase
 {
+    use ProphecyTrait;
+
     public function testConstructorAcceptsBodyAsString()
     {
         $body = 'Super valid XML';

test/UriTest.php

@@ -13,6 +13,7 @@
 use InvalidArgumentException;
 use Laminas\Diactoros\Uri;
 use PHPUnit\Framework\TestCase;
+use ReflectionObject;
 
 use function sprintf;
 
@@ -468,10 +469,19 @@ public function testMutationResetsUriStringPropertyInClone($method, $value)
     {
         $uri = new Uri('http://example.com/path?query=string#fragment');
         $string = (string) $uri;
-        $this->assertAttributeSame($string, 'uriString', $uri);
+
+        $r = new ReflectionObject($uri);
+        $p = $r->getProperty('uriString');
+        $p->setAccessible(true);
+        $this->assertSame($string, $p->getValue($uri));
+
         $test = $uri->{$method}($value);
-        $this->assertAttributeInternalType('null', 'uriString', $test);
-        $this->assertAttributeSame($string, 'uriString', $uri);
+        $r2 = new ReflectionObject($uri);
+        $p2 = $r2->getProperty('uriString');
+        $p2->setAccessible(true);
+        $this->assertNull($p2->getValue($test));
+
+        $this->assertSame($string, $p->getValue($uri));
     }
 
     /**
@@ -662,7 +672,7 @@ public function testReservedCharsInPathUnencoded()
             ->withHost('api.linkedin.com')
             ->withPath('/v1/people/~:(first-name,last-name,email-address,picture-url)');
 
-        $this->assertContains('/v1/people/~:(first-name,last-name,email-address,picture-url)', (string) $uri);
+        $this->assertStringContainsString('/v1/people/~:(first-name,last-name,email-address,picture-url)', (string) $uri);
     }
 
     public function testHostIsLowercase()