Fix sdl2-ttf tests (add support of incomplete versions)

Author: SerafimArts

tests/BinaryCompatibilityTestCase.php

@@ -20,6 +20,31 @@ class BinaryCompatibilityTestCase extends TestCase
 {
     private const DIR_STORAGE = __DIR__ . '/storage';
 
+    protected function skipIfVersionNotCompatible(Version $version, string $binary): void
+    {
+        $this->skipIfNoFFISupport();
+
+        $ffi = \FFI::cdef(<<<'CPP'
+        typedef struct SDL_version {
+            uint8_t major;
+            uint8_t minor;
+            uint8_t patch;
+        } SDL_version;
+
+        extern const SDL_version * TTF_Linked_Version(void);
+        CPP, $binary);
+
+        $ver = $ffi->TTF_Linked_Version();
+        $actual = \sprintf('%d.%d.%d', $ver->major, $ver->minor, $ver->patch);
+
+        if (\version_compare($version->toString(), $actual, '>')) {
+            $message = 'Unable to check compatibility because the installed version of the '
+                . 'library (v%s) is lower than the tested headers (v%s)';
+
+            $this->markTestSkipped(\sprintf($message, $actual, $version->toString()));
+        }
+    }
+
     /**
      * @requires OSFAMILY Windows
      *
@@ -34,15 +59,13 @@ public function testWindowsBinaryCompatibility(Version $version): void
                 ->extract('SDL2.dll', self::DIR_STORAGE . '/SDL2.dll');
         }
 
-        if (!\is_file(self::DIR_STORAGE . '/SDL2_ttf.dll')) {
+        if (!\is_file($binary = self::DIR_STORAGE . '/SDL2_ttf.dll')) {
             Downloader::zip('https://github.com/libsdl-org/SDL_ttf/releases/download/release-2.0.18/SDL2_ttf-2.0.18-win32-x64.zip')
                 ->extract('SDL2_ttf.dll', self::DIR_STORAGE . '/SDL2_ttf.dll');
         }
 
-        $this->assertHeadersCompatibleWith(
-            SDL2TTF::create($version),
-            self::DIR_STORAGE . '/SDL2_ttf.dll'
-        );
+        $this->skipIfVersionNotCompatible($version, $binary);
+        $this->assertHeadersCompatibleWith(SDL2TTF::create($version), $binary);
     }
 
     /**
@@ -52,14 +75,14 @@ public function testWindowsBinaryCompatibility(Version $version): void
      */
     public function testDarwinBinaryCompatibility(Version $version): void
     {
-        if (!Locator::exists('libSDL2_ttf-2.0.0.dylib')) {
+        $binary = Locator::resolve('libSDL2_ttf-2.0.0.dylib');
+
+        if ($binary === null) {
             $this->markTestSkipped('sdl2_ttf not installed');
         }
 
-        $this->assertHeadersCompatibleWith(
-            SDL2TTF::create($version),
-            Locator::resolve('libSDL2_ttf-2.0.0.dylib')
-        );
+        $this->skipIfVersionNotCompatible($version, $binary);
+        $this->assertHeadersCompatibleWith(SDL2TTF::create($version), $binary);
     }
 
     /**
@@ -69,13 +92,13 @@ public function testDarwinBinaryCompatibility(Version $version): void
      */
     public function testLinuxBinaryCompatibility(Version $version): void
     {
-        if (!Locator::exists('libSDL2_ttf-2.0.so.0')) {
+        $binary = Locator::resolve('libSDL2_ttf-2.0.so.0');
+
+        if ($binary === null) {
             $this->markTestSkipped('sdl2_ttf not installed');
         }
 
-        $this->assertHeadersCompatibleWith(
-            SDL2TTF::create($version),
-            Locator::resolve('libSDL2_ttf-2.0.so.0')
-        );
+        $this->skipIfVersionNotCompatible($version, $binary);
+        $this->assertHeadersCompatibleWith(SDL2TTF::create($version), $binary);
     }
 }