New BillingCycleRepository

Migrate BillingCyclePreference to BillingCycleRepository first, will
also migrate DataUsageList in future cl.

Also fix an issue that the BillingCyclePreference initial enable state
not set.

Bug: 290856342
Test: manual - on mobile settings
Test: unit test
Change-Id: Idd171fefbc30763010afb7bfb68543612f7b9b1a

tests/spa_unit/src/com/android/settings/datausage/BillingCyclePreferenceTest.kt

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2023 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.datausage
+
+import android.content.Context
+import android.net.NetworkTemplate
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.datausage.lib.BillingCycleRepository
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.kotlin.doReturn
+import org.mockito.kotlin.mock
+
+@RunWith(AndroidJUnit4::class)
+class BillingCyclePreferenceTest {
+
+    private val mockBillingCycleRepository = mock<BillingCycleRepository> {
+        on { isModifiable(SUB_ID) } doReturn false
+    }
+
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    private val preference = BillingCyclePreference(context, null, mockBillingCycleRepository)
+
+    @Test
+    fun isEnabled_initialState() {
+        val enabled = preference.isEnabled
+
+        assertThat(enabled).isTrue()
+    }
+
+    @Test
+    fun isEnabled_afterSetTemplate_updated() {
+        preference.setTemplate(mock<NetworkTemplate>(), SUB_ID, null)
+
+        val enabled = preference.isEnabled
+
+        assertThat(enabled).isFalse()
+    }
+
+    private companion object {
+        const val SUB_ID = 1
+    }
+}

tests/spa_unit/src/com/android/settings/datausage/lib/BillingCycleRepositoryTest.kt

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2023 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.datausage.lib
+
+import android.content.Context
+import android.os.INetworkManagementService
+import android.os.UserManager
+import android.telephony.TelephonyManager
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settingslib.spaprivileged.framework.common.userManager
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.kotlin.doReturn
+import org.mockito.kotlin.mock
+import org.mockito.kotlin.spy
+import org.mockito.kotlin.whenever
+
+@RunWith(AndroidJUnit4::class)
+class BillingCycleRepositoryTest {
+
+    private val mockNetworkManagementService = mock<INetworkManagementService> {
+        on { isBandwidthControlEnabled } doReturn true
+    }
+
+    private val mockUserManager = mock<UserManager> {
+        on { isAdminUser } doReturn true
+    }
+
+    private val mockTelephonyManager = mock<TelephonyManager> {
+        on { createForSubscriptionId(SUB_ID) } doReturn mock
+        on { isDataEnabledForReason(TelephonyManager.DATA_ENABLED_REASON_USER) } doReturn false
+    }
+
+    private val context: Context = spy(ApplicationProvider.getApplicationContext()) {
+        on { userManager } doReturn mockUserManager
+        on { getSystemService(TelephonyManager::class.java) } doReturn mockTelephonyManager
+    }
+
+    private val repository = BillingCycleRepository(context, mockNetworkManagementService)
+
+    @Test
+    fun isModifiable_bandwidthControlDisabled_returnFalse() {
+        whenever(mockNetworkManagementService.isBandwidthControlEnabled).thenReturn(false)
+
+        val modifiable = repository.isModifiable(SUB_ID)
+
+        assertThat(modifiable).isFalse()
+    }
+
+    @Test
+    fun isModifiable_notAdminUser_returnFalse() {
+        whenever(mockUserManager.isAdminUser).thenReturn(false)
+
+        val modifiable = repository.isModifiable(SUB_ID)
+
+        assertThat(modifiable).isFalse()
+    }
+
+    @Test
+    fun isModifiable_dataDisabled_returnFalse() {
+        whenever(
+            mockTelephonyManager.isDataEnabledForReason(TelephonyManager.DATA_ENABLED_REASON_USER)
+        ).thenReturn(false)
+
+        val modifiable = repository.isModifiable(SUB_ID)
+
+        assertThat(modifiable).isFalse()
+    }
+
+    @Test
+    fun isModifiable_meetAllRequirements_returnTrue() {
+        whenever(mockNetworkManagementService.isBandwidthControlEnabled).thenReturn(true)
+        whenever(mockUserManager.isAdminUser).thenReturn(true)
+        whenever(
+            mockTelephonyManager.isDataEnabledForReason(TelephonyManager.DATA_ENABLED_REASON_USER)
+        ).thenReturn(true)
+
+        val modifiable = repository.isModifiable(SUB_ID)
+
+        assertThat(modifiable).isTrue()
+    }
+
+    @Test
+    fun isBandwidthControlEnabled_bandwidthControlDisabled_returnFalse() {
+        whenever(mockNetworkManagementService.isBandwidthControlEnabled).thenReturn(false)
+
+        val enabled = repository.isBandwidthControlEnabled()
+
+        assertThat(enabled).isFalse()
+    }
+
+    @Test
+    fun isBandwidthControlEnabled_bandwidthControlEnabled_returnTrue() {
+        whenever(mockNetworkManagementService.isBandwidthControlEnabled).thenReturn(true)
+
+        val enabled = repository.isBandwidthControlEnabled()
+
+        assertThat(enabled).isTrue()
+    }
+
+    private companion object {
+        const val SUB_ID = 1
+    }
+}