Add test for setting diff calculator for all further assertions

meyfa · Feb 22, 2024 · 17833ef · 17833ef
1 parent b71c795
commit 17833ef
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Showing 2 changed files with 9 additions and 1 deletion.
diff --git a/src/GDAssertTrait.php b/src/GDAssertTrait.php
@@ -81,7 +81,7 @@ public function assertNotSimilarGD($expected, $actual, $message = '', $threshold
      */
     public function isSimilarGD($expected, $threshold = 0, $diffCalculator = null)
     {
-        return new GDSimilarityConstraint($expected, $threshold, $diffCalculator ?? new RgbaChannels());
+        return new GDSimilarityConstraint($expected, $threshold, $diffCalculator ?? $this->diffCalculator ?? new RgbaChannels());
     }
 
     /**

diff --git a/tests/GDAssertTraitTest.php b/tests/GDAssertTraitTest.php
@@ -61,4 +61,12 @@ public function testAlternativeDiffCalculator()
         $this->assertSimilarGD('./tests/images/transparent-black.gif', './tests/images/transparent-white.gif',
              '', 0, new ScaledRgbChannels());
     }
+
+    public function testSetDiffCalculator()
+    {
+        // apply diff calculator on all further assertions
+        $this->setDiffCalculator(new ScaledRgbChannels());
+
+        $this->assertSimilarGD('./tests/images/transparent-black.gif', './tests/images/transparent-white.gif');
+    }
 }
-Original file line number
+Diff line change
@@ Expand Up @@
          */
         public function isSimilarGD($expected, $threshold = 0, $diffCalculator = null)
         {
-            return new GDSimilarityConstraint($expected, $threshold, $diffCalculator ?? new RgbaChannels());
+            return new GDSimilarityConstraint($expected, $threshold, $diffCalculator ?? $this->diffCalculator ?? new RgbaChannels());
         }
         /**
@@ Expand Down @@