libraries/flicker/src/com/android/server/wm/traces/common/assertions/Fact.kt

/*
 * 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.server.wm.traces.common.assertions

/** A string key-value pair in a failure message, such as "expected: abc" or "but was: xyz." */
data class Fact(val key: String, val value: String) {

    constructor(key: String, value: Any? = null) : this(key, "$value")

    override fun toString(): String {
        return if (value.isEmpty()) key else "$key: $value"
    }
}