Saturate overflowing values when adjusting time marks

KT-46132

libraries/stdlib/jvm/test/time/TimeMarkJVMTest.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package test.time
+
+import kotlin.test.*
+import kotlin.time.*
+import kotlin.time.Duration.Companion.nanoseconds
+
+@OptIn(ExperimentalTime::class)
+class TimeMarkJVMTest {
+
+    @Test
+    fun longDurationElapsed() {
+        TimeMarkTest().testLongDisplacement(TimeSource.Monotonic, { waitDuration -> Thread.sleep(waitDuration.inWholeMilliseconds) })
+    }
+
+    @Test
+    fun defaultTimeMarkAdjustmentInfinite() {
+        val baseMark = TimeSource.Monotonic.markNow()
+        val longDuration = Long.MAX_VALUE.nanoseconds
+
+        val pastMark = baseMark - longDuration
+        val infiniteFutureMark1 = pastMark + longDuration * 3
+
+        assertEquals(-Duration.INFINITE, infiniteFutureMark1.elapsedNow())
+    }
+
+}