packages/SystemUI/tests/src/com/android/systemui/media/taptotransfer/common/MediaTttLoggerTest.kt

/*
 * 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.media.taptotransfer.common

import androidx.test.filters.SmallTest
import com.android.systemui.SysuiTestCase
import com.android.systemui.dump.DumpManager
import com.android.systemui.log.LogBuffer
import com.android.systemui.log.LogBufferFactory
import com.android.systemui.log.LogcatEchoTracker
import com.google.common.truth.Truth.assertThat
import java.io.PrintWriter
import java.io.StringWriter
import org.junit.Before
import org.junit.Test
import org.mockito.Mockito.mock

@SmallTest
class MediaTttLoggerTest : SysuiTestCase() {

    private lateinit var buffer: LogBuffer
    private lateinit var logger: MediaTttLogger

    @Before
    fun setUp () {
        buffer = LogBufferFactory(DumpManager(), mock(LogcatEchoTracker::class.java))
            .create("buffer", 10)
        logger = MediaTttLogger(DEVICE_TYPE_TAG, buffer)
    }

    @Test
    fun logStateChange_bufferHasDeviceTypeTagAndParamInfo() {
        val stateName = "test state name"
        val id = "test id"
        val packageName = "this.is.a.package"

        logger.logStateChange(stateName, id, packageName)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(DEVICE_TYPE_TAG)
        assertThat(actualString).contains(stateName)
        assertThat(actualString).contains(id)
        assertThat(actualString).contains(packageName)
    }

    @Test
    fun logPackageNotFound_bufferHasPackageName() {
        val packageName = "this.is.a.package"

        logger.logPackageNotFound(packageName)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(packageName)
    }

    @Test
    fun logRemovalBypass_bufferHasReasons() {
        val removalReason = "fakeRemovalReason"
        val bypassReason = "fakeBypassReason"

        logger.logRemovalBypass(removalReason, bypassReason)

        val actualString = getStringFromBuffer()
        assertThat(actualString).contains(removalReason)
        assertThat(actualString).contains(bypassReason)
    }

    private fun getStringFromBuffer(): String {
        val stringWriter = StringWriter()
        buffer.dump(PrintWriter(stringWriter), tailLength = 0)
        return stringWriter.toString()
    }
}

private const val DEVICE_TYPE_TAG = "TEST TYPE"