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/*
* 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.example.android.pdfrendererbasic
import androidx.arch.core.executor.testing.InstantTaskExecutorRule
import androidx.test.core.app.ApplicationProvider
import androidx.test.runner.AndroidJUnit4
import com.google.common.truth.Truth.assertThat
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith
@RunWith(AndroidJUnit4::class)
class PdfRendererBasicViewModelTest {
@get:Rule
val instantTaskExecutorRule = InstantTaskExecutorRule()
private val viewModel = PdfRendererBasicViewModel(
ApplicationProvider.getApplicationContext(), true)
@Test
fun allPages() {
assertThat(viewModel).isNotNull()
assertThat(viewModel.pageInfo.value).isEqualTo(0 to 10)
assertThat(viewModel.previousEnabled.value).isFalse()
assertThat(viewModel.nextEnabled.value).isTrue()
assertThat(viewModel.pageBitmap.value).isNotNull()
repeat(9) { viewModel.showNext() }
assertThat(viewModel.pageInfo.value).isEqualTo(9 to 10)
assertThat(viewModel.previousEnabled.value).isTrue()
assertThat(viewModel.nextEnabled.value).isFalse()
assertThat(viewModel.pageBitmap.value).isNotNull()
}
}
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