[Wi-Fi] Add a new fragment for configuring a new AccessPoint network.

When configuring a new access point in Wi-Fi settings page, it's hard to figure out there are some other option items after you tapping the "Advanced options" button.

To improve it, use full screen fragment to present the configuration items, so user can see as many items as possible.

Bug: 31052996
Test: Mock this fragment and check each button status run as expected.
Change-Id: I1c8e552fcabb1414bb500d918ed61287bf4aece2

tests/robotests/src/com/android/settings/wifi/ConfigureAccessPointFragmentTest.java

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * 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 com.android.settings.wifi;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+
+import android.app.settings.SettingsEnums;
+import android.os.Bundle;
+
+import com.android.settings.testutils.shadow.ShadowConnectivityManager;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadows.androidx.fragment.FragmentController;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(shadows = ShadowConnectivityManager.class)
+public class ConfigureAccessPointFragmentTest {
+
+    private static final String KEY_SSID = "key_ssid";
+    private static final String KEY_SECURITY = "key_security";
+
+    private ConfigureAccessPointFragment mConfigureAccessPointFragment;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        Bundle bundle = new Bundle();
+
+        bundle.putString(KEY_SSID, "Test AP");
+        bundle.putInt(KEY_SECURITY, 1 /* WEP */);
+        mConfigureAccessPointFragment = spy(new ConfigureAccessPointFragment());
+        mConfigureAccessPointFragment.setArguments(bundle);
+        FragmentController.setupFragment(mConfigureAccessPointFragment);
+    }
+
+    @Test
+    public void getMetricsCategory_shouldReturnConfigureNetwork() {
+        assertThat(mConfigureAccessPointFragment.getMetricsCategory()).isEqualTo(
+                SettingsEnums.SETTINGS_WIFI_CONFIGURE_NETWORK);
+    }
+
+    @Test
+    public void getMode_shouldBeModeConnected() {
+        assertThat(mConfigureAccessPointFragment.getMode()).isEqualTo(
+                WifiConfigUiBase.MODE_CONNECT);
+    }
+
+    @Test
+    public void launchFragment_shouldShowSubmitButton() {
+        assertThat(mConfigureAccessPointFragment.getSubmitButton()).isNotNull();
+    }
+
+    @Test
+    public void launchFragment_shouldShowCancelButton() {
+        assertThat(mConfigureAccessPointFragment.getCancelButton()).isNotNull();
+    }
+
+    @Test
+    public void onClickSubmitButton_shouldHandleSubmitAction() {
+        mConfigureAccessPointFragment.getSubmitButton().performClick();
+
+        verify(mConfigureAccessPointFragment).handleSubmitAction();
+    }
+
+    @Test
+    public void onClickCancelButton_shouldHandleCancelAction() {
+        mConfigureAccessPointFragment.getCancelButton().performClick();
+
+        verify(mConfigureAccessPointFragment).handleCancelAction();
+    }
+}