Fixing merge of script fragments + UT
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Egor
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/*
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* Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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/*
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* Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
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* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
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*/
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package kotlin.script.experimental.test
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import junit.framework.TestCase
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.runners.Parameterized
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import kotlin.script.experimental.api.*
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import kotlin.script.experimental.host.getMergedScriptText
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import kotlin.script.experimental.host.toScriptSource
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@RunWith(Parameterized::class)
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class ScriptHostUtilTest : TestCase() {
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@Parameterized.Parameter(0)
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lateinit var testName: String
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@Parameterized.Parameter(1)
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lateinit var params: MergedScriptTextTestParams
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companion object {
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@Parameterized.Parameters(name = "{0}")
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@JvmStatic
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fun parameters(): List<Array<Any>> = listOf(
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arrayOf("first and last fragments included", MergedScriptTextTestParams(listOf(0, 2))),
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arrayOf("first fragment is included and last is excluded", MergedScriptTextTestParams(listOf(0, 1))),
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arrayOf("first fragment is excluded and last is included", MergedScriptTextTestParams(listOf(1, 2))),
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arrayOf("first and last fragments are excluded", MergedScriptTextTestParams(listOf(1))),
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arrayOf("first and last fragments included, random char pool", MergedScriptTextTestParams(listOf(0, 2), randomCharPool = true)),
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arrayOf(
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"first fragment is included and last is excluded, random char pool",
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MergedScriptTextTestParams(listOf(0, 1), randomCharPool = true)
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),
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arrayOf(
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"first fragment is excluded and last is included, random char pool",
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MergedScriptTextTestParams(listOf(1, 2), randomCharPool = true)
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),
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arrayOf(
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"first and last fragments are excluded, random char pool",
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MergedScriptTextTestParams(listOf(1), randomCharPool = true)
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),
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arrayOf("first and last fragments included, with multiple lines", MergedScriptTextTestParams(listOf(0, 2), "a\nb\nc")),
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arrayOf("first included, last excluded, with multiple lines", MergedScriptTextTestParams(listOf(0, 1), "a\nb\nc")),
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arrayOf("first excluded, last included, with multiple lines", MergedScriptTextTestParams(listOf(1, 2), "a\nb\nc")),
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arrayOf("first and last fragments are excluded, with multiple lines", MergedScriptTextTestParams(listOf(1), "a\nb\nc")),
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arrayOf("first and last fragments included, duplicate fragments", MergedScriptTextTestParams(listOf(0, 2), "aaa")),
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arrayOf("first included, last excluded, duplicate fragments", MergedScriptTextTestParams(listOf(0, 1), "aaa")),
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arrayOf("first is excluded,last is included, duplicate fragments", MergedScriptTextTestParams(listOf(1, 2), "aaa")),
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arrayOf("first and last fragments are excluded, duplicate fragments", MergedScriptTextTestParams(listOf(1), "aaa")),
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)
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}
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data class MergedScriptTextTestParams(
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val fragmentsToInclude: List<Int>,
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val intiCharPool: CharSequence = "abc",
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val randomCharPool: Boolean = false
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)
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class FragmentedText {
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private val sb: StringBuilder = StringBuilder()
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private val fragmentList: List<TextFragment> = mutableListOf()
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companion object {
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private val charPool: List<String> = ('a'..'z').map(Char::toString) + "\n"
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}
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fun fragments(): List<TextFragment> = fragmentList
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fun text(): String = sb.toString()
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data class TextFragment(
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val text: String,
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val textRange: SourceCode.Range
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) {
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fun toScriptSourceNamedFragment(index: Int) = ScriptSourceNamedFragment("fragment$index", textRange)
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}
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fun addRandomFragment(): FragmentedText {
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val randomText = (1..28).joinToString(separator = "") { charPool.random().toString() }
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return addFragment(randomText)
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}
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fun addFragment(fragmentText: String): FragmentedText = apply {
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val fragmentTextLength = fragmentText.length
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val text = text()
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val fragmentStartLine: Int = text.lines().count()
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val fragmentEndLine = fragmentStartLine + fragmentText.count { it == '\n' }
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val fullTextLength = text.length
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val fragment = TextFragment(
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text = fragmentText,
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textRange = SourceCode.Range(
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start = SourceCode.Position(fragmentStartLine, 1, fullTextLength),
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end = SourceCode.Position(fragmentEndLine, fragmentTextLength + 1, fullTextLength + fragmentTextLength + 1)
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)
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)
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(fragmentList as MutableList<TextFragment>).add(fragment)
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sb.appendLine(fragmentText)
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}
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}
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@Test
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fun `test `() {
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val fragmentedText = initFragmentedScript(params.intiCharPool, params.randomCharPool)
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val textFragments = fragmentedText.fragments()
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val includedFragments = params.fragmentsToInclude.map(textFragments::get)
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val script = fragmentedText.text().toScriptSource()
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val testConfig = scriptCompilationConfiguration(includedFragments)
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val mergedScriptText = getMergedScriptText(script, testConfig)
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runValidations(script.text, mergedScriptText, includedFragments)
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}
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private fun scriptCompilationConfiguration(includedFragments: List<FragmentedText.TextFragment>) =
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ScriptCompilationConfiguration {
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sourceFragments(
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includedFragments.mapIndexed { idx, textFragment ->
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textFragment.toScriptSourceNamedFragment(idx)
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})
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}
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/**
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* Generates text
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* if randomCharPool is false from charSequence
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* - for each char in [charSeq] it adds line of length of 3 to the generated text
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* if randomCharPool is true
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* - picks characters randomly, line count is [lines], line length is 28, some number bigger than alphabet size
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*/
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private fun initFragmentedScript(
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charSeq: CharSequence = "abc",
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randomCharPool: Boolean,
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lines: Int = charSeq.length
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): FragmentedText {
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val generateFragment: FragmentedText.(Int) -> FragmentedText = when {
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randomCharPool -> { _ -> addRandomFragment() }
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else -> { line: Int ->
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val index = line % charSeq.length
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addFragment(charSeq[index].toString().repeat(3))
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}
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}
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return (1..lines).fold(FragmentedText()) { frag, line ->
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frag.generateFragment(line)
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}
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}
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private fun runValidations(originalText: String, mergedText: String, includedFragments: List<FragmentedText.TextFragment>) {
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// Check that line count is the same
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assertEquals("Line count differ.", originalText.lines().count(), mergedText.lines().count())
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// Check that char count is the same
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assertEquals("Char count differ.", originalText.length, mergedText.length)
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includedFragments.forEach {
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// Check that every included fragment is included in correct position
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assertEquals(
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"Incorrect fragment in position.",
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it.text,
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mergedText.substring(it.textRange.start.absolutePos!!, it.textRange.end.absolutePos!! - 1)
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)
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}
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// Check that after removing included fragments there are only whitespaces
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// meaning other fragments are excluded/cleaned
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includedFragments.fold(mergedText) { text, fragment ->
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text.replaceRange(
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fragment.textRange.start.absolutePos!!,
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fragment.textRange.end.absolutePos!!,
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" ".repeat(fragment.text.length + 1)
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)
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}.also {
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assertTrue(
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"Either incorrect fragment was included OR excluded fragments were not cleaned properly.",
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it.matches("\\s*".toRegex())
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)
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}
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}
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}
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