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+--TEST--
+Bug #76502: Chain of mixed exceptions and errors does not serialize properly
+--FILE--
+<?php
+
+$examples = [
+ "Exception(Exception())" => new Exception("outer", 0, new Exception("inner")),
+ "Error(Error())" => new Error("outer", 0, new Error("inner")),
+ "Error(Exception())" => new Error("outer", 0, new Exception("inner")),
+ "Exception(Error())" => new Exception("outer", 0, new Error("inner"))
+];
+
+foreach ($examples as $name => $example) {
+ $processed = unserialize(serialize($example));
+ $processedPrev = $processed->getPrevious();
+ echo "---- $name ----\n";
+ echo "before: ", get_class($example), ".previous == ",
+ get_class($example->getPrevious()), "\n";
+ echo "after : ", get_class($processed), ".previous == ",
+ $processedPrev ? get_class($processedPrev) : "null", "\n";
+}
+
+?>
+--EXPECT--
+---- Exception(Exception()) ----
+before: Exception.previous == Exception
+after : Exception.previous == Exception
+---- Error(Error()) ----
+before: Error.previous == Error
+after : Error.previous == Error
+---- Error(Exception()) ----
+before: Error.previous == Exception
+after : Error.previous == Exception
+---- Exception(Error()) ----
+before: Exception.previous == Error
+after : Exception.previous == Error