94 lines
2.9 KiB
Kotlin
94 lines
2.9 KiB
Kotlin
/*
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* Copyright 2026 Sergey S. Chernov real.sergeych@gmail.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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import kotlinx.coroutines.test.runTest
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import net.sergeych.lyng.Benchmarks
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import net.sergeych.lyng.Script
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import net.sergeych.lyng.obj.ObjInt
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import kotlin.test.Test
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import kotlin.test.assertEquals
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import kotlin.time.TimeSource
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class MixedCompareBenchmarkTest {
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@Test
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fun benchmarkMixedCompareOps() = runTest {
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if (!Benchmarks.enabled) return@runTest
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val iterations = 200000
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val script = """
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fun mixedCompareBench(n) {
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var acc = 0
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var r = 0.0
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val strs = ["a","b","aa","bb","abc","abd","zzz",""]
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var i = 0
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while(i < n) {
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val si = strs[i % 8]
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if( si == "a" ) acc += 1 else acc -= 1
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if( si != "zzz" ) acc += 2
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if( si == "" ) acc += 3
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if( i < (i % 5) ) acc += 1 else acc -= 1
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if( (i % 3) == 0 ) acc += 2
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val r1 = i + 0.5
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if( r1 > i ) acc += 1
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if( i < r1 ) acc += 1
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r += r1 * 0.25
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if( r > 1000.0 ) acc += 1
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i++
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}
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acc
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}
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""".trimIndent()
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val scope = Script.newScope()
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scope.eval(script)
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val expected = expectedValue(iterations)
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val start = TimeSource.Monotonic.markNow()
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val result = scope.eval("mixedCompareBench($iterations)") as ObjInt
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val elapsedMs = start.elapsedNow().inWholeMilliseconds
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println("[DEBUG_LOG] [BENCH] mixed-compare elapsed=${elapsedMs} ms")
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assertEquals(expected, result.value)
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}
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private fun expectedValue(iterations: Int): Long {
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val strs = arrayOf("a", "b", "aa", "bb", "abc", "abd", "zzz", "")
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var acc = 0L
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var r = 0.0
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var i = 0
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while (i < iterations) {
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val si = strs[i % 8]
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if (si == "a") acc += 1 else acc -= 1
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if (si != "zzz") acc += 2
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if (si == "") acc += 3
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if (i < (i % 5)) acc += 1 else acc -= 1
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if ((i % 3) == 0) acc += 2
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val r1 = i + 0.5
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if (r1 > i) acc += 1
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if (i < r1) acc += 1
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r += r1 * 0.25
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if (r > 1000.0) acc += 1
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i += 1
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}
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return acc
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}
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}
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