stdlib tests: move JVM-only test source files

libraries/stdlib/jvm/test/io/Console.kt

@@ -0,0 +1,90 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+@file:Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+@file:kotlin.jvm.JvmVersion
+package test.io
+
+import org.junit.Test
+import java.nio.charset.Charset
+import kotlin.test.*
+
+class ConsoleTest {
+    private val linuxLineSeparator: String = "\n"
+    private val windowsLineSeparator: String = "\r\n"
+
+    @Test
+    fun shouldReadEmptyLine() {
+        testReadLine("", emptyList())
+    }
+
+    @Test
+    fun shouldReadSingleLine() {
+        for (length in 1..3) {
+            val line = buildString { repeat(length) { append('a' + it) } }
+            testReadLine(line, listOf(line))
+        }
+    }
+
+    @Test
+    fun trailingEmptyLineIsIgnored() {
+        testReadLine(linuxLineSeparator, listOf(""))
+        testReadLine(windowsLineSeparator, listOf(""))
+        testReadLine("a$linuxLineSeparator", listOf("a"))
+        testReadLine("a$windowsLineSeparator", listOf("a"))
+    }
+
+    @Test
+    fun shouldReadOneLine() {
+        testReadLine("first", listOf("first"))
+    }
+
+    @Test
+    fun shouldReadTwoLines() {
+        testReadLine("first${linuxLineSeparator}second", listOf("first", "second"))
+    }
+
+    @Test
+    fun shouldReadConsecutiveEmptyLines() {
+        testReadLine("$linuxLineSeparator$linuxLineSeparator", listOf("", ""))
+        testReadLine("$linuxLineSeparator$windowsLineSeparator", listOf("", ""))
+        testReadLine("$windowsLineSeparator$linuxLineSeparator", listOf("", ""))
+        testReadLine("$windowsLineSeparator$windowsLineSeparator", listOf("", ""))
+    }
+
+    @Test
+    fun shouldReadWindowsLineSeparator() {
+        testReadLine("first${windowsLineSeparator}second", listOf("first", "second"))
+    }
+
+    @Test
+    fun shouldReadMultibyteEncodings() {
+        testReadLine("first${linuxLineSeparator}second", listOf("first", "second"), charset = Charsets.UTF_32)
+    }
+
+    private fun testReadLine(text: String, expected: List<String>, charset: Charset = Charsets.UTF_8) {
+        val actual = readLines(text, charset)
+        assertEquals(expected, actual)
+        val referenceExpected = readLinesReference(text, charset)
+        assertEquals(referenceExpected, actual, "Comparing to reference readLine")
+
+    }
+
+    private fun readLines(text: String, charset: Charset): List<String> {
+        text.byteInputStream(charset).use { stream ->
+            val decoder = charset.newDecoder()
+            @Suppress("INVISIBLE_REFERENCE", "INVISIBLE_MEMBER")
+            return generateSequence { readLine(stream, decoder) }.toList().also {
+                assertTrue("All bytes should be read") { stream.read() == -1 }
+            }
+        }
+    }
+
+    private fun readLinesReference(text: String, charset: Charset): List<String> {
+        text.byteInputStream(charset).bufferedReader(charset).use { reader ->
+            return generateSequence { reader.readLine() }.toList()
+        }
+    }
+}