refactor CSV Parser unit tests from the old home-made framework into PHP Unit, and add new test to check that <NULL> is parsed as a real null value

test/core/CSVParserTest.php

@@ -0,0 +1,68 @@
+<?php
+
+namespace Combodo\iTop\Test\UnitTest\Core;
+
+use Combodo\iTop\Test\UnitTest\ItopTestCase;
+use CSVParser;
+
+
+class CSVParserTest extends ItopTestCase
+{
+	protected function setUp()
+	{
+		parent::setUp();
+
+		require_once(APPROOT.'core/csvparser.class.inc.php');
+		require_once(APPROOT.'core/coreexception.class.inc.php');
+	}
+
+	public function testFile()
+	{
+		$sSeparator = ';';
+		$sDelimiter = '?';
+		$sDataFile = '?field1?;?field2?;?field3?
+?line 0, col 0?;?line 0, col 1?;?line 0, col 2?
+a;b;c
+a;b;<NULL>
+ ? a ? ; ? b ? ; ? c ? 
+ a ; b ; c 
+??;??;??
+;;
+?a"?;?b?;?c?
+?a1
+a2?;?b?;?c?
+?a1,a2?;?b?;?c?
+?a?;?b?;?c1,",c2
+,c3?
+?a?;?b?;?ouf !?
+    spaces trimmed out ; 1234; mac@enroe.com ';
+
+		$aExpectedResult = array(
+			array('line 0, col 0', 'line 0, col 1', 'line 0, col 2'),
+			array('a', 'b', 'c'),
+			array('a', 'b', null),
+			array(' a ', ' b ', ' c '),
+			array('a', 'b', 'c'),
+			array('', '', ''),
+			array('', '', ''),
+			array('a"', 'b', 'c'),
+			array("a1\na2", 'b', 'c'),
+			array('a1,a2', 'b', 'c'),
+			array('a', 'b', "c1,\",c2\n,c3"),
+			array('a', 'b', 'ouf !'),
+			array('spaces trimmed out', '1234', 'mac@enroe.com'),
+		);
+
+		$oCSVParser = new CSVParser($sDataFile, $sSeparator, $sDelimiter);
+		$aData = $oCSVParser->ToArray(1, null, 0);
+
+		foreach ($aData as $iRow => $aRow)
+		{
+			foreach ($aRow as $iCol => $cellValue)
+			{
+				$this->assertSame($aExpectedResult[$iRow][$iCol], $cellValue, "Line $iRow, Column $iCol");
+			}
+		}
+	}
+}
+