fixed exception in tests

app/src/androidTest/java/org/isoron/uhabits/BaseViewTest.java

@@ -225,7 +225,7 @@ public class BaseViewTest extends BaseAndroidTest
         throws IOException
     {
         File dir = FileUtils.getSDCardDir("test-screenshots");
-        if (dir == null) dir = FileUtils.getFilesDir(testContext,"test-screenshots");
+        if (dir == null) dir = FileUtils.getFilesDir(targetContext,"test-screenshots");
         if (dir == null) throw new RuntimeException(
             "Could not find suitable dir for screenshots");
 

app/src/androidTest/java/org/isoron/uhabits/tasks/ExportCSVTaskTest.java

@@ -56,7 +56,7 @@ public class ExportCSVTaskTest extends BaseAndroidTest
         for (Habit h : habitList) selected.add(h);
 
         taskRunner.execute(
-            new ExportCSVTask(testContext,habitList, selected, archiveFilename -> {
+            new ExportCSVTask(targetContext,habitList, selected, archiveFilename -> {
                 assertThat(archiveFilename, is(not(nullValue())));
                 File f = new File(archiveFilename);
                 assertTrue(f.exists());

app/src/androidTest/java/org/isoron/uhabits/tasks/ExportDBTaskTest.java

@@ -46,7 +46,7 @@ public class ExportDBTaskTest extends BaseAndroidTest
     @Test
     public void testExportCSV() throws Throwable
     {
-        ExportDBTask task = new ExportDBTask(testContext, filename -> {
+        ExportDBTask task = new ExportDBTask(targetContext, filename -> {
             assertThat(filename, is(not(nullValue())));
 
             File f = new File(filename);