Add some controller tests for import and update

Currently these just  validate expected errors caused by limitations
in the test stack.

helpers/TeiEditions_Helpers_DataImporter.php

@@ -115,7 +115,7 @@ public function updateItems($items, $neatline, &$updated)
                     $currentItem->id, metadata($currentItem, "display_title"), $e->getMessage());
                 throw new TeiEditions_Helpers_ImportError($msg, 0, $e);
             } else {
-                throw $e;
+                throw new TeiEditions_Helpers_ImportError("Error running update", 0, $e);
             }
         }
     }

test/integration/AdminController_FilesTest.php

@@ -0,0 +1,52 @@
+<?php
+/**
+ * @package TeiEditions
+ *
+ * @copyright Copyright 2021 King's College London Department of Digital Humanities
+ */
+
+
+class AdminController_FilesTest extends TeiEditions_Case_Default
+{
+    public function setUpLegacy()
+    {
+        parent::setUpLegacy();
+
+        $importer = new TeiEditions_Helpers_DataImporter(get_db());
+
+        $created = 0;
+        $updated = 0;
+        $onDone = function() { };
+        $importer->importData(
+            __DIR__ . '/../resources/enhance-tei.xml',
+            'text/xml',
+            false,
+            false,
+            $created,
+            $updated,
+            function(){}
+        );
+        $this->assertEquals(1, $created);
+    }
+
+    public function testFilesImport() {
+        // TODO: figure out how to test an upload...???
+        $this->request->setMethod('POST');
+        $this->dispatch('tei-editions/files/import');
+
+        // The form will error because we haven't provided a file
+        $this->assertXpath("//div[@id='flash']/ul/li[@class='error']");
+    }
+
+    public function testFilesUpdate() {
+        // An empty items[] key should update all items...
+        $this->request->setMethod('POST')->setPost(['create_exhibit' => 0]);
+        $this->dispatch('tei-editions/files/update');
+
+        // NB: as with the Data Import test I haven't figured out how to
+        // make updating work in the test environment because the files are
+        // not available at their web URL. Therefore, for now asserting that
+        // this method errors as expected at least ensures it doesn't crash.
+        $this->assertXpath("//div[@id='flash']/ul/li[@class='error']");
+    }
+}