UI screenshot diff test for user switcher.

Using the new, modern architecture user switcher UI, we implement a UI
screenshot diff test for it. This is a prerequisite for the next step,
where we replace the XML file and view-binder code with a Jetpack
Compose implementation.

Bug: 243843440
Test: N/A this CL is a test
Change-Id: I2831129f44702007be64133a3edcd418e30bd4c1

packages/SystemUI/compose/gallery/src/com/android/systemui/user/Fakes.kt

@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2022 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.systemui.user
+
+import android.content.Context
+import androidx.appcompat.content.res.AppCompatResources
+import com.android.systemui.common.shared.model.Text
+import com.android.systemui.compose.gallery.R
+import com.android.systemui.keyguard.data.repository.FakeKeyguardRepository
+import com.android.systemui.keyguard.domain.interactor.KeyguardInteractor
+import com.android.systemui.power.data.repository.FakePowerRepository
+import com.android.systemui.power.domain.interactor.PowerInteractor
+import com.android.systemui.user.data.repository.FakeUserRepository
+import com.android.systemui.user.domain.interactor.UserInteractor
+import com.android.systemui.user.shared.model.UserActionModel
+import com.android.systemui.user.shared.model.UserModel
+import com.android.systemui.user.ui.viewmodel.UserSwitcherViewModel
+import com.android.systemui.util.mockito.mock
+
+object Fakes {
+    private val USER_TINT_COLORS =
+        arrayOf(
+            0x000000,
+            0x0000ff,
+            0x00ff00,
+            0x00ffff,
+            0xff0000,
+            0xff00ff,
+            0xffff00,
+            0xffffff,
+        )
+
+    fun fakeUserSwitcherViewModel(
+        context: Context,
+        userCount: Int,
+    ): UserSwitcherViewModel {
+        return UserSwitcherViewModel.Factory(
+                userInteractor =
+                    UserInteractor(
+                        repository =
+                            FakeUserRepository().apply {
+                                setUsers(
+                                    (0 until userCount).map { index ->
+                                        UserModel(
+                                            id = index,
+                                            name = Text.Loaded("user_$index"),
+                                            image =
+                                                checkNotNull(
+                                                    AppCompatResources.getDrawable(
+                                                        context,
+                                                        R.drawable.ic_avatar_guest_user
+                                                    )
+                                                ),
+                                            isSelected = index == 0,
+                                            isSelectable = true,
+                                        )
+                                    }
+                                )
+                                setActions(
+                                    UserActionModel.values().mapNotNull {
+                                        if (it == UserActionModel.NAVIGATE_TO_USER_MANAGEMENT) {
+                                            null
+                                        } else {
+                                            it
+                                        }
+                                    }
+                                )
+                            },
+                        controller = mock(),
+                        activityStarter = mock(),
+                        keyguardInteractor =
+                            KeyguardInteractor(
+                                repository =
+                                    FakeKeyguardRepository().apply { setKeyguardShowing(false) },
+                            ),
+                    ),
+                powerInteractor =
+                    PowerInteractor(
+                        repository = FakePowerRepository(),
+                    )
+            )
+            .create(UserSwitcherViewModel::class.java)
+    }
+}

packages/SystemUI/tests/utils/src/com/android/systemui/keyguard/data/repository/FakeKeyguardRepository.kt

@@ -12,6 +12,7 @@
  * 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.systemui.keyguard.data.repository