[TASK] Only allow string for some OutputFormat properties

`sBeforeAfterListArgumentSeparator` and
`sSpaceAfterListArgumentSeparator` now can only hold strings,
and no longer arrays (which was deprecated in V8.8.0).

Author: oliverklee

src/OutputFormat.php

@@ -94,10 +94,7 @@ class OutputFormat
     /**
      * This is what’s inserted before the separator in value lists, by default.
      *
-     * `array` is deprecated in version 8.8.0, and will be removed in version 9.0.0.
-     * To set the spacing for specific separators, use {@see $aSpaceBeforeListArgumentSeparators} instead.
-     *
-     * @var string|array<non-empty-string, string>
+     * @var string
      */
     public $sSpaceBeforeListArgumentSeparator = '';
 
@@ -111,10 +108,7 @@ class OutputFormat
     /**
      * This is what’s inserted after the separator in value lists, by default.
      *
-     * `array` is deprecated in version 8.8.0, and will be removed in version 9.0.0.
-     * To set the spacing for specific separators, use {@see $aSpaceAfterListArgumentSeparators} instead.
-     *
-     * @var string|array<non-empty-string, string>
+     * @var string
      */
     public $sSpaceAfterListArgumentSeparator = '';
 
@@ -545,21 +539,17 @@ public function setSpaceBeforeListArgumentSeparators(array $separatorSpaces): se
     }
 
     /**
-     * @return string|array<non-empty-string, string>
-     *
      * @internal
      */
-    public function getSpaceAfterListArgumentSeparator()
+    public function getSpaceAfterListArgumentSeparator(): string
     {
         return $this->sSpaceAfterListArgumentSeparator;
     }
 
     /**
-     * @param string|array<non-empty-string, string> $whitespace
-     *
      * @return $this fluent interface
      */
-    public function setSpaceAfterListArgumentSeparator($whitespace): self
+    public function setSpaceAfterListArgumentSeparator(string $whitespace): self
     {
         $this->sSpaceAfterListArgumentSeparator = $whitespace;
 

tests/OutputFormatTest.php

@@ -96,26 +96,6 @@ public function spaceAfterListArgumentSeparator(): void
         );
     }
 
-    /**
-     * @test
-     *
-     * @deprecated since version 8.8.0; will be removed in version 9.0.
-     * Use `setSpaceAfterListArgumentSeparators()` to set different spacing per separator.
-     */
-    public function spaceAfterListArgumentSeparatorComplexDeprecated(): void
-    {
-        self::assertSame(
-            '.main, .test {font: italic normal bold 16px/1.2 "Helvetica",	Verdana,	sans-serif;background: white;}'
-            . "\n@media screen {.main {background-size: 100% 100%;font-size: 1.3em;background-color: #fff;}}",
-            $this->document->render(OutputFormat::create()->setSpaceAfterListArgumentSeparator([
-                'default' => ' ',
-                ',' => "\t",
-                '/' => '',
-                ' ' => '',
-            ]))
-        );
-    }
-
     /**
      * @test
      */