Add unit tests to prove that new json_encode modifier works with spec…

…ial characters in both UTF-8 and other encodings

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierJsonEncodeCp1252Test.php

@@ -0,0 +1,76 @@
+<?php
+/**
+ * Smarty PHPunit tests of modifier.
+ * This file must be saved in Windows-1252 encoding!
+ */
+
+namespace UnitTests\TemplateSource\TagTests\PluginModifier;
+use PHPUnit_Smarty;
+
+class PluginModifierJsonEncodeTest extends PHPUnit_Smarty
+{
+	public function setUp(): void
+	{
+		$this->setUpSmarty(__DIR__);
+		\Smarty\Smarty::$_CHARSET = 'cp1252';
+	}
+
+	/**
+	 * @dataProvider dataForDefault
+	 */
+	public function testDefault($value, $expected)
+	{
+		$tpl = $this->smarty->createTemplate('string:{$v|json_encode}');
+		$tpl->assign("v", $value);
+		$this->assertEquals($expected, $this->smarty->fetch($tpl));
+	}
+
+	/**
+	 * @dataProvider dataForDefault
+	 */
+	public function testDefaultAsFunction($value, $expected)
+	{
+		$tpl = $this->smarty->createTemplate('string:{json_encode($v)}');
+		$tpl->assign("v", $value);
+		$this->assertEquals($expected, $this->smarty->fetch($tpl));
+	}
+
+	public function dataForDefault() {
+		return [
+			["abc", '"abc"'],
+			[["abc"], '["abc"]'],
+			[["abc",["a"=>2]], '["abc",{"a":2}]'],
+			[['€uro',['Schlüssel'=>'Straße']], '["\u20acuro",{"Schl\u00fcssel":"Stra\u00dfe"}]'],	# € = x80 in cp1252; ü = xFC in cp1252; ß = xDF in cp1252;
+		];
+	}
+
+	/**
+	 * @dataProvider dataForForceObject
+	 */
+	public function testForceObject($value, $expected)
+	{
+		$tpl = $this->smarty->createTemplate('string:{$v|json_encode:16}');
+		$tpl->assign("v", $value);
+		$this->assertEquals($expected, $this->smarty->fetch($tpl));
+	}
+
+	/**
+	 * @dataProvider dataForForceObject
+	 */
+	public function testForceObjectAsFunction($value, $expected)
+	{
+		$tpl = $this->smarty->createTemplate('string:{json_encode($v,16)}');
+		$tpl->assign("v", $value);
+		$this->assertEquals($expected, $this->smarty->fetch($tpl));
+	}
+
+	public function dataForForceObject() {
+		return [
+			["abc", '"abc"'],
+			[["abc"], '{"0":"abc"}'],
+			[["abc",["a"=>2]], '{"0":"abc","1":{"a":2}}'],
+			[['€uro'], '{"0":"\u20acuro"}'],
+		];
+	}
+
+}

tests/UnitTests/TemplateSource/TagTests/PluginModifier/PluginModifierJsonEncodeTest.php

@@ -1,6 +1,7 @@
 <?php
 /**
- * Smarty PHPunit tests of modifier
+ * Smarty PHPunit tests of modifier.
+ * This file must be saved in UTF-8 encoding!
  */
 
 namespace UnitTests\TemplateSource\TagTests\PluginModifier;
@@ -38,6 +39,7 @@ public function dataForDefault() {
 			["abc", '"abc"'],
 			[["abc"], '["abc"]'],
 			[["abc",["a"=>2]], '["abc",{"a":2}]'],
+			[['€uro',['Schlüssel'=>'Straße']], '["\u20acuro",{"Schl\u00fcssel":"Stra\u00dfe"}]'],	# € = x80 in cp1252; ü = xFC in cp1252; ß = xDF in cp1252;
 		];
 	}
 
@@ -66,6 +68,7 @@ public function dataForForceObject() {
 			["abc", '"abc"'],
 			[["abc"], '{"0":"abc"}'],
 			[["abc",["a"=>2]], '{"0":"abc","1":{"a":2}}'],
+			[['€uro'], '{"0":"\u20acuro"}'],
 		];
 	}