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/*
* Copyright (C) 2020 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.testutils
import android.net.NetworkStats
import kotlin.test.assertTrue
@JvmOverloads
fun orderInsensitiveEquals(
leftStats: NetworkStats,
rightStats: NetworkStats,
compareTime: Boolean = false
): Boolean {
if (leftStats == rightStats) return true
if (compareTime && leftStats.getElapsedRealtime() != rightStats.getElapsedRealtime()) {
return false
}
// While operations such as add/subtract will preserve empty entries. This will make
// the result be hard to verify during test. Remove them before comparing since they
// are not really affect correctness.
// TODO (b/152827872): Remove empty entries after addition/subtraction.
val leftTrimmedEmpty = leftStats.removeEmptyEntries()
val rightTrimmedEmpty = rightStats.removeEmptyEntries()
if (leftTrimmedEmpty.size() != rightTrimmedEmpty.size()) return false
val left = NetworkStats.Entry()
val right = NetworkStats.Entry()
// Order insensitive compare.
for (i in 0 until leftTrimmedEmpty.size()) {
leftTrimmedEmpty.getValues(i, left)
val j: Int = rightTrimmedEmpty.findIndexHinted(left.iface, left.uid, left.set, left.tag,
left.metered, left.roaming, left.defaultNetwork, i)
if (j == -1) return false
rightTrimmedEmpty.getValues(j, right)
if (left != right) return false
}
return true
}
/**
* Assert that two {@link NetworkStats} are equals, assuming the order of the records are not
* necessarily the same.
*
* @note {@code elapsedRealtime} is not compared by default, given that in test cases that is not
* usually used.
*/
@JvmOverloads
fun assertNetworkStatsEquals(
expected: NetworkStats,
actual: NetworkStats,
compareTime: Boolean = false
) {
assertTrue(orderInsensitiveEquals(expected, actual, compareTime),
"expected: " + expected + " but was: " + actual)
}
/**
* Assert that after being parceled then unparceled, {@link NetworkStats} is equal to the original
* object.
*/
fun assertParcelingIsLossless(stats: NetworkStats) {
assertParcelingIsLossless(stats, { a, b -> orderInsensitiveEquals(a, b) })
}
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