135 lines
3.6 KiB
Kotlin
135 lines
3.6 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.eval
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import kotlin.test.Test
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class StdlibTest {
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@Test
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fun testIterableFilter() = runTest {
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eval("""
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assertEquals([2,4,6,8], (1..8).filter{ println("call2"); it % 2 == 0 }.toList() )
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println("-------------------")
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assertEquals([1,3,5,7], (1..8).filter{ println("call1"); it % 2 == 1 }.toList() )
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""".trimIndent())
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}
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@Test
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fun testFirstLast() = runTest {
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eval("""
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assertEquals(1, (1..8).first )
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assertEquals(8, (1..8).last )
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""".trimIndent())
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}
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@Test
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fun testTake() = runTest {
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eval("""
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val r = 1..8
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assertEquals([1,2,3], r.take(3).toList() )
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assertEquals([7,8], r.takeLast(2).toList() )
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""".trimIndent())
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}
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@Test
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fun testAnyAndAll() = runTest {
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eval("""
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assert( [1,2,3].any { it > 2 } )
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assert( ![1,2,3].any { it > 4 } )
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assert( [1,2,3].all { it <= 3 } )
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""".trimIndent())
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}
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@Test
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fun testRingBuffer() = runTest {
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eval("""
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val r = RingBuffer(3)
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assert( r is RingBuffer )
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assertEquals(0, r.size)
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assertEquals(3, r.capacity)
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r += 10
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assertEquals(1, r.size)
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assertEquals(10, r.first)
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r += 20
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assertEquals(2, r.size)
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assertEquals( [10, 20], r.toList() )
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r += 30
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assertEquals(3, r.size)
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assertEquals( [10, 20, 30], r.toList() )
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r += 40
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assertEquals(3, r.size)
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assertEquals( [20, 30, 40], r.toList() )
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""".trimIndent())
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}
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@Test
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fun testDrop() = runTest {
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eval("""
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assertEquals([7,8], (1..8).drop(6).toList() )
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assertEquals([1,2], (1..8).dropLast(6).toList() )
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""".trimIndent())
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}
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@Test
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fun testFlattenAndFilter() = runTest {
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eval("""
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assertEquals([1,2,3,4,5,6], [1,3,5].map { [it, it+1] }.flatten() )
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assertEquals([1,3,5], [null,1,null, 3,5].filterNotNull().toList())
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""")
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}
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@Test
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fun testFlatMap() = runTest {
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eval("""
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assertEquals([1,2,3,4,5,6], [1,3,5].flatMap { [it,it+1] }.toList() )
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""")
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}
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@Test
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fun testCount() = runTest {
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eval("""
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assertEquals(5, (1..10).toList().count { it % 2 == 1 } )
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""")
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}
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@Test
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fun testWith() = runTest {
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eval("""
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class Person(val name, var age)
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val p = Person("Alice", 30)
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val result = with(p) {
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assertEquals("Alice", name)
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assertEquals(30, age)
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age = 31
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"done"
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}
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assertEquals("done", result)
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assertEquals(31, p.age)
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""".trimIndent())
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}
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}
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