From 8bb19cb5499f6ed20a789d243a8831a02f45ab8c Mon Sep 17 00:00:00 2001
From: Agustin Gomes <me@agustingomes.com>
Date: Tue, 19 Oct 2021 21:56:30 +0200
Subject: [PATCH] Add test cases for backed enum implementing interface

In the Enumeration RFC, it states Backed Enums can implement
interfaces, but it was not clear where the backed Enum type
would need to be placed in such situation.

This commit adds a test case for these scenarios.

Signed-off-by: Agustin Gomes <me@agustingomes.com>

Closes GH-7593.
---
 .../enum/backed-implements-multiple.phpt      | 58 +++++++++++++++++++
 Zend/tests/enum/backed-implements.phpt        | 34 +++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 Zend/tests/enum/backed-implements-multiple.phpt
 create mode 100644 Zend/tests/enum/backed-implements.phpt

diff --git a/Zend/tests/enum/backed-implements-multiple.phpt b/Zend/tests/enum/backed-implements-multiple.phpt
new file mode 100644
index 00000000000..8ec40fd9302
--- /dev/null
+++ b/Zend/tests/enum/backed-implements-multiple.phpt
@@ -0,0 +1,58 @@
+--TEST--
+Backed Enum with multiple implementing interfaces
+--FILE--
+<?php
+
+interface Colorful {
+    public function color(): string;
+}
+
+interface Shaped {
+    public function shape(): string;
+}
+
+interface ExtendedShaped extends Shaped {
+}
+
+enum Suit: string implements Colorful, ExtendedShaped {
+    case Hearts = 'H';
+    case Diamonds = 'D';
+    case Clubs = 'C';
+    case Spades = 'S';
+
+    public function color(): string {
+        return match ($this) {
+            self::Hearts, self::Diamonds => 'Red',
+            self::Clubs, self::Spades => 'Black',
+        };
+    }
+
+    public function shape(): string {
+        return match ($this) {
+            self::Hearts => 'heart',
+            self::Diamonds => 'diamond',
+            self::Clubs => 'club',
+            self::Spades => 'spade',
+        };
+    }
+}
+
+echo Suit::Hearts->color() . "\n";
+echo Suit::Hearts->shape() . "\n";
+echo Suit::Diamonds->color() . "\n";
+echo Suit::Diamonds->shape() . "\n";
+echo Suit::Clubs->color() . "\n";
+echo Suit::Clubs->shape() . "\n";
+echo Suit::Spades->color() . "\n";
+echo Suit::Spades->shape() . "\n";
+
+?>
+--EXPECT--
+Red
+heart
+Red
+diamond
+Black
+club
+Black
+spade
diff --git a/Zend/tests/enum/backed-implements.phpt b/Zend/tests/enum/backed-implements.phpt
new file mode 100644
index 00000000000..3b06db17198
--- /dev/null
+++ b/Zend/tests/enum/backed-implements.phpt
@@ -0,0 +1,34 @@
+--TEST--
+Backed Enum implements
+--FILE--
+<?php
+
+interface Colorful {
+    public function color(): string;
+}
+
+enum Suit: string implements Colorful {
+    case Hearts = 'H';
+    case Diamonds = 'D';
+    case Clubs = 'C';
+    case Spades = 'S';
+
+    public function color(): string {
+        return match ($this) {
+            self::Hearts, self::Diamonds => 'Red',
+            self::Clubs, self::Spades => 'Black',
+        };
+    }
+}
+
+echo Suit::Hearts->color() . "\n";
+echo Suit::Diamonds->color() . "\n";
+echo Suit::Clubs->color() . "\n";
+echo Suit::Spades->color() . "\n";
+
+?>
+--EXPECT--
+Red
+Red
+Black
+Black