Add instrumentation test for CalculatorEditText.

Just basic show/hide tests for now.

app/src/androidTest/java/org/gnucash/android/test/ui/CalculatorEditTextTest.java

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2012 - 2015 Ngewi Fet <ngewif@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.gnucash.android.test.ui;
+
+import android.content.Intent;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteDatabase;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.ActivityInstrumentationTestCase2;
+import android.util.Log;
+
+import org.gnucash.android.R;
+import org.gnucash.android.db.AccountsDbAdapter;
+import org.gnucash.android.db.DatabaseHelper;
+import org.gnucash.android.db.SplitsDbAdapter;
+import org.gnucash.android.db.TransactionsDbAdapter;
+import org.gnucash.android.model.Account;
+import org.gnucash.android.model.Commodity;
+import org.gnucash.android.ui.common.UxArgument;
+import org.gnucash.android.ui.transaction.TransactionsActivity;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.Espresso.pressBack;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static org.hamcrest.Matchers.not;
+
+// TODO: Find out how to press the keys in the KeyboardView.
+@RunWith(AndroidJUnit4.class)
+public class CalculatorEditTextTest extends
+		ActivityInstrumentationTestCase2<TransactionsActivity> {
+	private static final String DUMMY_ACCOUNT_UID = "transactions-account";
+	private static final String DUMMY_ACCOUNT_NAME = "Transactions Account";
+
+    private static final String TRANSFER_ACCOUNT_NAME   = "Transfer account";
+    private static final String TRANSFER_ACCOUNT_UID    = "transfer_account";
+    public static final String CURRENCY_CODE = "USD";
+
+    private SQLiteDatabase mDb;
+    private DatabaseHelper mDbHelper;
+    private AccountsDbAdapter mAccountsDbAdapter;
+    private TransactionsDbAdapter mTransactionsDbAdapter;
+    private SplitsDbAdapter mSplitsDbAdapter;
+	private TransactionsActivity mTransactionsActivity;
+
+	public CalculatorEditTextTest() {
+		super(TransactionsActivity.class);
+	}
+
+	@Override
+	@Before
+	public void setUp() throws Exception {
+		super.setUp();
+		injectInstrumentation(InstrumentationRegistry.getInstrumentation());
+		AccountsActivityTest.preventFirstRunDialogs(getInstrumentation().getTargetContext());
+
+
+        mDbHelper = new DatabaseHelper(getInstrumentation().getTargetContext());
+        try {
+            mDb = mDbHelper.getWritableDatabase();
+        } catch (SQLException e) {
+            Log.e(getClass().getName(), "Error getting database: " + e.getMessage());
+            mDb = mDbHelper.getReadableDatabase();
+        }
+        mSplitsDbAdapter = new SplitsDbAdapter(mDb);
+        mTransactionsDbAdapter = new TransactionsDbAdapter(mDb, mSplitsDbAdapter);
+        mAccountsDbAdapter = new AccountsDbAdapter(mDb, mTransactionsDbAdapter);
+		mAccountsDbAdapter.deleteAllRecords();
+
+        Account account = new Account(DUMMY_ACCOUNT_NAME);
+        account.setUID(DUMMY_ACCOUNT_UID);
+        account.setCommodity(Commodity.getInstance(CURRENCY_CODE));
+
+        Account account2 = new Account(TRANSFER_ACCOUNT_NAME);
+        account2.setUID(TRANSFER_ACCOUNT_UID);
+        account2.setCommodity(Commodity.getInstance(CURRENCY_CODE));
+
+        mAccountsDbAdapter.addRecord(account);
+        mAccountsDbAdapter.addRecord(account2);
+
+        Intent intent = new Intent(Intent.ACTION_VIEW);
+        intent.putExtra(UxArgument.SELECTED_ACCOUNT_UID, DUMMY_ACCOUNT_UID);
+        setActivityIntent(intent);
+		mTransactionsActivity = getActivity();
+	}
+
+    /**
+     * Checks the calculator keyboard is showed/hided as expected.
+     */
+    @Test
+    public void testShowingHidingOfCalculatorKeyboard() {
+        clickOnView(R.id.fab_create_transaction);
+
+        // Giving the focus to the amount field shows the keyboard
+        onView(withId(R.id.input_transaction_amount)).perform(click());
+        onView(withId(R.id.calculator_keyboard)).check(matches(isDisplayed()));
+
+        // Pressing back hides the keyboard (still with focus)
+        pressBack();
+        onView(withId(R.id.calculator_keyboard)).check(matches(not(isDisplayed())));
+
+        // Clicking the amount field already focused shows the keyboard again
+        clickOnView(R.id.input_transaction_amount);
+        onView(withId(R.id.calculator_keyboard)).check(matches(isDisplayed()));
+
+        // Changing the focus to another field hides the keyboard
+        clickOnView(R.id.input_transaction_name);
+        onView(withId(R.id.calculator_keyboard)).check(matches(not(isDisplayed())));
+    }
+
+	/**
+	 * Simple wrapper for clicking on views with espresso
+	 * @param viewId View resource ID
+	 */
+	private void clickOnView(int viewId){
+		onView(withId(viewId)).perform(click());
+	}
+
+	@Override
+	@After
+	public void tearDown() throws Exception {
+		mTransactionsActivity.finish();
+		super.tearDown();
+	}
+}