@Test
    @Order(2)
    void basicAutoMultipleUploadMultipleFiles(Page page) {
        // Arrange
        FileUpload fileUpload = page.fileupload;
        assertEquals("", fileUpload.getValue());

        // Act
        File file1 = locateClientSideFile("file1.csv");
        File file2 = locateClientSideFile("file2.csv");
        fileUpload.setValue(file1, file2);

        // Assert
        assertNoJavascriptErrors();
        assertUploadedFiles(page.uploadedFiles, file1, file2);
        assertConfiguration(fileUpload);
    }
Tests basic auto multiple file upload.
p:fileUpload mode=simple auto=true multiple=true (skinSimple=true)
primefaces-integration-tests/src/test/java/org/primefaces/integrationtests/fileupload/FileUpload004Test.java