diff --git a/tests/PhpSpreadsheetTests/Cell/AddressHelperTest.php b/tests/PhpSpreadsheetTests/Cell/AddressHelperTest.php
index 9b21767be3..ffe0e05f8b 100644
--- a/tests/PhpSpreadsheetTests/Cell/AddressHelperTest.php
+++ b/tests/PhpSpreadsheetTests/Cell/AddressHelperTest.php
@@ -26,9 +26,13 @@ public function providerR1C1ConversionToA1Absolute()
     /**
      * @dataProvider providerR1C1ConversionToA1Relative
      */
-    public function testR1C1ConversionToA1Relative(string $expectedValue, string $address, ?int $row = null, ?int $column = null): void
-    {
-        $args = [$address];
+    public function testR1C1ConversionToA1Relative(
+        string $expectedValue,
+        string $address,
+        ?int $row = null,
+        ?int $column = null
+    ): void {
+        $args = [];
         if ($row !== null) {
             $args[] = $row;
         }
@@ -36,7 +40,7 @@ public function testR1C1ConversionToA1Relative(string $expectedValue, string $ad
             $args[] = $column;
         }
 
-        $actualValue = AddressHelper::convertToA1(...$args);
+        $actualValue = AddressHelper::convertToA1($address, ...$args);
 
         self::assertSame($expectedValue, $actualValue);
     }
diff --git a/tests/PhpSpreadsheetTests/Cell/CoordinateTest.php b/tests/PhpSpreadsheetTests/Cell/CoordinateTest.php
index 8e0e98a90d..159af3b9a2 100644
--- a/tests/PhpSpreadsheetTests/Cell/CoordinateTest.php
+++ b/tests/PhpSpreadsheetTests/Cell/CoordinateTest.php
@@ -232,10 +232,11 @@ public function providerSplitRange()
      * @dataProvider providerBuildRange
      *
      * @param mixed $expectedResult
+     * @param mixed $rangeSets
      */
-    public function testBuildRange($expectedResult, ...$args): void
+    public function testBuildRange($expectedResult, $rangeSets): void
     {
-        $result = Coordinate::buildRange(...$args);
+        $result = Coordinate::buildRange($rangeSets);
         self::assertEquals($expectedResult, $result);
     }
 
@@ -248,7 +249,16 @@ public function testBuildRangeInvalid(): void
     {
         $this->expectException(TypeError::class);
 
-        $cellRange = '';
+        $cellRange = null;
+        Coordinate::buildRange($cellRange);
+    }
+
+    public function testBuildRangeInvalid2(): void
+    {
+        $this->expectException(Exception::class);
+        $this->expectExceptionMessage('Range does not contain any information');
+
+        $cellRange = [];
         Coordinate::buildRange($cellRange);
     }
 
@@ -342,10 +352,11 @@ public function providerInvalidRange()
      * @dataProvider providerMergeRangesInCollection
      *
      * @param mixed $expectedResult
+     * @param mixed $rangeSets
      */
-    public function testMergeRangesInCollection($expectedResult, ...$args): void
+    public function testMergeRangesInCollection($expectedResult, $rangeSets): void
     {
-        $result = Coordinate::mergeRangesInCollection(...$args);
+        $result = Coordinate::mergeRangesInCollection($rangeSets);
         self::assertEquals($expectedResult, $result);
     }
 
diff --git a/tests/PhpSpreadsheetTests/Shared/CodePageTest.php b/tests/PhpSpreadsheetTests/Shared/CodePageTest.php
index 2bdbda72f7..eb12188983 100644
--- a/tests/PhpSpreadsheetTests/Shared/CodePageTest.php
+++ b/tests/PhpSpreadsheetTests/Shared/CodePageTest.php
@@ -12,10 +12,11 @@ class CodePageTest extends TestCase
      * @dataProvider providerCodePage
      *
      * @param mixed $expectedResult
+     * @param mixed $codePageIndex
      */
-    public function testCodePageNumberToName($expectedResult, ...$args): void
+    public function testCodePageNumberToName($expectedResult, $codePageIndex): void
     {
-        $result = CodePage::numberToName(...$args);
+        $result = CodePage::numberToName($codePageIndex);
         self::assertEquals($expectedResult, $result);
     }
 
diff --git a/tests/PhpSpreadsheetTests/Shared/DateTest.php b/tests/PhpSpreadsheetTests/Shared/DateTest.php
index 550e2f6a9c..4ab7461b12 100644
--- a/tests/PhpSpreadsheetTests/Shared/DateTest.php
+++ b/tests/PhpSpreadsheetTests/Shared/DateTest.php
@@ -39,7 +39,7 @@ public function testSetExcelCalendar(): void
 
     public function testSetExcelCalendarWithInvalidValue(): void
     {
-        $unsupportedCalendar = '2012';
+        $unsupportedCalendar = 2012;
         $result = Date::setExcelCalendar($unsupportedCalendar);
         self::assertFalse($result);
     }
@@ -48,15 +48,16 @@ public function testSetExcelCalendarWithInvalidValue(): void
      * @dataProvider providerDateTimeExcelToTimestamp1900
      *
      * @param mixed $expectedResult
+     * @param mixed $excelDateTimeValue
      */
-    public function testDateTimeExcelToTimestamp1900($expectedResult, ...$args): void
+    public function testDateTimeExcelToTimestamp1900($expectedResult, $excelDateTimeValue): void
     {
         if (is_numeric($expectedResult) && ($expectedResult > PHP_INT_MAX || $expectedResult < PHP_INT_MIN)) {
             self::markTestSkipped('Test invalid on 32-bit system.');
         }
         Date::setExcelCalendar(Date::CALENDAR_WINDOWS_1900);
 
-        $result = Date::excelToTimestamp(...$args);
+        $result = Date::excelToTimestamp($excelDateTimeValue);
         self::assertEquals($expectedResult, $result);
     }
 
@@ -69,12 +70,13 @@ public function providerDateTimeExcelToTimestamp1900()
      * @dataProvider providerDateTimeTimestampToExcel1900
      *
      * @param mixed $expectedResult
+     * @param mixed $unixTimestamp
      */
-    public function testDateTimeTimestampToExcel1900($expectedResult, ...$args): void
+    public function testDateTimeTimestampToExcel1900($expectedResult, $unixTimestamp): void
     {
         Date::setExcelCalendar(Date::CALENDAR_WINDOWS_1900);
 
-        $result = Date::timestampToExcel(...$args);
+        $result = Date::timestampToExcel($unixTimestamp);
         self::assertEqualsWithDelta($expectedResult, $result, 1E-5);
     }
 
@@ -87,12 +89,13 @@ public function providerDateTimeTimestampToExcel1900()
      * @dataProvider providerDateTimeDateTimeToExcel
      *
      * @param mixed $expectedResult
+     * @param mixed $dateTimeObject
      */
-    public function testDateTimeDateTimeToExcel($expectedResult, ...$args): void
+    public function testDateTimeDateTimeToExcel($expectedResult, $dateTimeObject): void
     {
         Date::setExcelCalendar(Date::CALENDAR_WINDOWS_1900);
 
-        $result = Date::dateTimeToExcel(...$args);
+        $result = Date::dateTimeToExcel($dateTimeObject);
         self::assertEqualsWithDelta($expectedResult, $result, 1E-5);
     }
 
@@ -123,15 +126,16 @@ public function providerDateTimeFormattedPHPToExcel1900()
      * @dataProvider providerDateTimeExcelToTimestamp1904
      *
      * @param mixed $expectedResult
+     * @param mixed $excelDateTimeValue
      */
-    public function testDateTimeExcelToTimestamp1904($expectedResult, ...$args): void
+    public function testDateTimeExcelToTimestamp1904($expectedResult, $excelDateTimeValue): void
     {
         if (is_numeric($expectedResult) && ($expectedResult > PHP_INT_MAX || $expectedResult < PHP_INT_MIN)) {
             self::markTestSkipped('Test invalid on 32-bit system.');
         }
         Date::setExcelCalendar(Date::CALENDAR_MAC_1904);
 
-        $result = Date::excelToTimestamp(...$args);
+        $result = Date::excelToTimestamp($excelDateTimeValue);
         self::assertEquals($expectedResult, $result);
     }
 
@@ -144,12 +148,13 @@ public function providerDateTimeExcelToTimestamp1904()
      * @dataProvider providerDateTimeTimestampToExcel1904
      *
      * @param mixed $expectedResult
+     * @param mixed $unixTimestamp
      */
-    public function testDateTimeTimestampToExcel1904($expectedResult, ...$args): void
+    public function testDateTimeTimestampToExcel1904($expectedResult, $unixTimestamp): void
     {
         Date::setExcelCalendar(Date::CALENDAR_MAC_1904);
 
-        $result = Date::timestampToExcel(...$args);
+        $result = Date::timestampToExcel($unixTimestamp);
         self::assertEqualsWithDelta($expectedResult, $result, 1E-5);
     }
 
@@ -178,15 +183,17 @@ public function providerIsDateTimeFormatCode()
      * @dataProvider providerDateTimeExcelToTimestamp1900Timezone
      *
      * @param mixed $expectedResult
+     * @param mixed $excelDateTimeValue
+     * @param mixed $timezone
      */
-    public function testDateTimeExcelToTimestamp1900Timezone($expectedResult, ...$args): void
+    public function testDateTimeExcelToTimestamp1900Timezone($expectedResult, $excelDateTimeValue, $timezone): void
     {
         if (is_numeric($expectedResult) && ($expectedResult > PHP_INT_MAX || $expectedResult < PHP_INT_MIN)) {
             self::markTestSkipped('Test invalid on 32-bit system.');
         }
         Date::setExcelCalendar(Date::CALENDAR_WINDOWS_1900);
 
-        $result = Date::excelToTimestamp(...$args);
+        $result = Date::excelToTimestamp($excelDateTimeValue, $timezone);
         self::assertEquals($expectedResult, $result);
     }
 
@@ -202,29 +209,37 @@ public function testVarious(): void
         self::assertTrue((bool) Date::stringToExcel('2019-02-28'));
         self::assertTrue((bool) Date::stringToExcel('2019-02-28 11:18'));
         self::assertFalse(Date::stringToExcel('2019-02-28 11:71'));
+
         $date = Date::PHPToExcel('2020-01-01');
         self::assertEquals(43831.0, $date);
+
         $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
         $sheet = $spreadsheet->getActiveSheet();
         $sheet->setCellValue('B1', 'x');
         $val = $sheet->getCell('B1')->getValue();
         self::assertFalse(Date::timestampToExcel($val));
+
         $cell = $sheet->getCell('A1');
         self::assertNotNull($cell);
+
         $cell->setValue($date);
         $sheet->getStyle('A1')
             ->getNumberFormat()
             ->setFormatCode(NumberFormat::FORMAT_DATE_DATETIME);
         self::assertTrue(null !== $cell && Date::isDateTime($cell));
+
         $cella2 = $sheet->getCell('A2');
         self::assertNotNull($cella2);
+
         $cella2->setValue('=A1+2');
         $sheet->getStyle('A2')
             ->getNumberFormat()
             ->setFormatCode(NumberFormat::FORMAT_DATE_DATETIME);
         self::assertTrue(null !== $cella2 && Date::isDateTime($cella2));
+
         $cella3 = $sheet->getCell('A3');
         self::assertNotNull($cella3);
+
         $cella3->setValue('=A1+4');
         $sheet->getStyle('A3')
             ->getNumberFormat()