KotlinExpressionMover: trailing comma support

#KT-34744

generators/tests/org/jetbrains/kotlin/generators/tests/GenerateTests.kt

@@ -453,6 +453,7 @@ fun main(args: Array<String>) {
             model("codeInsight/moveUpDown/closingBraces", testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/expressions", pattern = KT_OR_KTS, testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/parametersAndArguments", testMethod = "doTestExpression")
+            model("codeInsight/moveUpDown/trailingComma", testMethod = "doTestExpressionWithTrailingComma")
         }
 
         testClass<AbstractMoveLeftRightTest> {

generators/tests/org/jetbrains/kotlin/generators/tests/GenerateTests.kt.as35

@@ -439,6 +439,7 @@ fun main(args: Array<String>) {
             model("codeInsight/moveUpDown/closingBraces", testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/expressions", pattern = KT_OR_KTS, testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/parametersAndArguments", testMethod = "doTestExpression")
+            model("codeInsight/moveUpDown/trailingComma", testMethod = "doTestExpressionWithTrailingComma")
         }
 
         testClass<AbstractMoveLeftRightTest> {

generators/tests/org/jetbrains/kotlin/generators/tests/GenerateTests.kt.as36

@@ -439,6 +439,7 @@ fun main(args: Array<String>) {
             model("codeInsight/moveUpDown/closingBraces", testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/expressions", pattern = KT_OR_KTS, testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/parametersAndArguments", testMethod = "doTestExpression")
+            model("codeInsight/moveUpDown/trailingComma", testMethod = "doTestExpressionWithTrailingComma")
         }
 
         testClass<AbstractMoveLeftRightTest> {

generators/tests/org/jetbrains/kotlin/generators/tests/GenerateTests.kt.as40

@@ -439,6 +439,7 @@ fun main(args: Array<String>) {
             model("codeInsight/moveUpDown/closingBraces", testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/expressions", pattern = KT_OR_KTS, testMethod = "doTestExpression")
             model("codeInsight/moveUpDown/parametersAndArguments", testMethod = "doTestExpression")
+            model("codeInsight/moveUpDown/trailingComma", testMethod = "doTestExpressionWithTrailingComma")
         }
 
         testClass<AbstractMoveLeftRightTest> {

idea/src/org/jetbrains/kotlin/idea/codeInsight/upDownMover/KotlinExpressionMover.kt

@@ -4,16 +4,19 @@
  */
 package org.jetbrains.kotlin.idea.codeInsight.upDownMover
 
+import com.intellij.application.options.CodeStyle
 import com.intellij.codeInsight.editorActions.moveUpDown.LineRange
 import com.intellij.codeInsight.editorActions.moveUpDown.StatementUpDownMover
 import com.intellij.openapi.editor.Editor
 import com.intellij.psi.*
 import com.intellij.psi.util.PsiTreeUtil
 import org.jetbrains.kotlin.idea.core.util.isMultiLine
+import org.jetbrains.kotlin.idea.formatter.TrailingCommaHelper
 import org.jetbrains.kotlin.idea.formatter.isComma
 import org.jetbrains.kotlin.lexer.KtTokens
 import org.jetbrains.kotlin.psi.*
 import org.jetbrains.kotlin.psi.psiUtil.getParentOfTypesAndPredicate
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 import java.util.function.Predicate
 
 class KotlinExpressionMover : AbstractKotlinUpDownMover() {
@@ -117,9 +120,14 @@ class KotlinExpressionMover : AbstractKotlinUpDownMover() {
             val (first, second) = parametersOrArgsToMove ?: return
             val lastElementOnFirstLine = getLastSiblingOfSameTypeInLine(first, editor)
             val lastElementOnSecondLine = getLastSiblingOfSameTypeInLine(second, editor)
+            val withTrailingComma = lastElementOnFirstLine.parent
+                ?.safeAs<KtElement>()
+                ?.let {
+                    TrailingCommaHelper.needComma(it, CodeStyle.getSettings(it.project), true)
+                } == true
 
-            fixCommaIfNeeded(lastElementOnFirstLine, down && isLastOfItsKind(lastElementOnSecondLine, true))
-            fixCommaIfNeeded(lastElementOnSecondLine, !down && isLastOfItsKind(lastElementOnFirstLine, true))
+            fixCommaIfNeeded(lastElementOnFirstLine, down && isLastOfItsKind(lastElementOnSecondLine, true), withTrailingComma)
+            fixCommaIfNeeded(lastElementOnSecondLine, !down && isLastOfItsKind(lastElementOnFirstLine, true),withTrailingComma)
             editor.project?.let { PsiDocumentManager.getInstance(it).doPostponedOperationsAndUnblockDocument(editor.document) }
         }
     }
@@ -476,15 +484,15 @@ class KotlinExpressionMover : AbstractKotlinUpDownMover() {
                 predicate = MOVABLE_ELEMENT_CONSTRAINT
             ) ?: return null
 
-            if (isBracelessBlock(movableElement)) {
-                return StatementUpDownMover.firstNonWhiteElement(
+            return if (isBracelessBlock(movableElement)) {
+                StatementUpDownMover.firstNonWhiteElement(
                     if (lookRight)
                         movableElement.lastChild
                     else
                         movableElement.firstChild, !lookRight
                 )
             } else {
-                return movableElement
+                movableElement
             }
         }
 
@@ -550,9 +558,9 @@ class KotlinExpressionMover : AbstractKotlinUpDownMover() {
 
         private fun getComma(element: PsiElement): PsiElement? = firstNonWhiteSibling(element, true)?.takeIf(PsiElement::isComma)
 
-        private fun fixCommaIfNeeded(element: PsiElement, willBeLast: Boolean) {
+        private fun fixCommaIfNeeded(element: PsiElement, willBeLast: Boolean, withTrailingComma: Boolean) {
             val comma = getComma(element)
-            if (willBeLast && comma != null) {
+            if (willBeLast && comma != null && !withTrailingComma) {
                 comma.delete()
             } else if (!willBeLast && comma == null) {
                 val parent = element.parent

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs1.kt

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = foo(
+        <caret>a,
+        b,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs1.kt.after

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = foo(
+        b,
+        <caret>a,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs2.kt

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = foo(
+        b,
+        <caret>a,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs2.kt.after

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = foo(
+        b,
+        c,
+        <caret>a
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs3.kt

@@ -0,0 +1,7 @@
+// MOVE: down
+// IS_APPLICABLE: false
+val x = foo(
+        b,
+        c,
+        <caret>a
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs4.kt

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = foo(
+        b,
+        c,
+        <caret>a
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs4.kt.after

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = foo(
+        b,
+        <caret>a,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs5.kt

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = foo(
+        b,
+        <caret>a,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs5.kt.after

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = foo(
+        <caret>a,
+        b,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs6.kt

@@ -0,0 +1,7 @@
+// MOVE: up
+// IS_APPLICABLE: false
+val x = foo(
+        <caret>a,
+        b,
+        c
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs7.kt

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = listOf(
+        1,
+        <caret>2, 3,
+        4
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs7.kt.after

@@ -0,0 +1,6 @@
+// MOVE: down
+val x = listOf(
+        1,
+        4,
+        <caret>2, 3
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs8.kt

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = listOf(
+        1,
+        4,
+        <caret>2, 3
+)

idea/testData/codeInsight/moveUpDown/trailingComma/callArgs8.kt.after

@@ -0,0 +1,6 @@
+// MOVE: up
+val x = listOf(
+        1,
+        <caret>2, 3,
+        4
+)

idea/testData/codeInsight/moveUpDown/trailingComma/classParams1.kt

@@ -0,0 +1,8 @@
+// MOVE: down
+class A(
+        b:<caret> Int,
+        a: Int,
+        c: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams1.kt.after

@@ -0,0 +1,8 @@
+// MOVE: down
+class A(
+        a: Int,
+        b:<caret> Int,
+        c: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams2.kt

@@ -0,0 +1,8 @@
+// MOVE: down
+class A(
+        b: Int,
+        <caret>a: Int,
+        c: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams2.kt.after

@@ -0,0 +1,8 @@
+// MOVE: down
+class A(
+        b: Int,
+        c: Int,
+        <caret>a: Int,
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams3.kt

@@ -0,0 +1,8 @@
+// MOVE: up
+class A(
+        a: Int,
+        b:<caret> Int,
+        c: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams3.kt.after

@@ -0,0 +1,8 @@
+// MOVE: up
+class A(
+        b:<caret> Int,
+        a: Int,
+        c: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams4.kt

@@ -0,0 +1,8 @@
+// MOVE: up
+class A(
+        b: Int,
+        c: Int,
+        <caret>a: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams4.kt.after

@@ -0,0 +1,8 @@
+// MOVE: up
+class A(
+        b: Int,
+        <caret>a: Int,
+        c: Int,
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams5.kt

@@ -0,0 +1,9 @@
+// MOVE: down
+// IS_APPLICABLE: false
+class A(
+        b: Int,
+        c: Int,
+        <caret>a: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams6.kt

@@ -0,0 +1,9 @@
+// MOVE: up
+// IS_APPLICABLE: false
+class A(
+        <caret>b: Int,
+        c: Int,
+        a: Int
+) {
+
+}

idea/testData/codeInsight/moveUpDown/trailingComma/classParams7.kt

@@ -0,0 +1,6 @@
+// MOVE: down
+class A(
+        a: Int,
+        <caret>b: Int, c: Int,
+        d: Int
+)

idea/testData/codeInsight/moveUpDown/trailingComma/classParams7.kt.after

@@ -0,0 +1,6 @@
+// MOVE: down
+class A(
+        a: Int,
+        d: Int,
+        <caret>b: Int, c: Int,
+)

idea/testData/codeInsight/moveUpDown/trailingComma/classParams8.kt

@@ -0,0 +1,6 @@
+// MOVE: up
+class A(
+        a: Int,
+        d: Int,
+        <caret>b: Int, c: Int
+)

idea/testData/codeInsight/moveUpDown/trailingComma/classParams8.kt.after

@@ -0,0 +1,6 @@
+// MOVE: up
+class A(
+        a: Int,
+        <caret>b: Int, c: Int,
+        d: Int,
+)

idea/testData/codeInsight/moveUpDown/trailingComma/funParams1.kt

@@ -0,0 +1,13 @@
+// MOVE: down
+class A {
+    fun <T, U, W> foo(
+            b:<caret> Int,
+            a: Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams1.kt.after

@@ -0,0 +1,13 @@
+// MOVE: down
+class A {
+    fun <T, U, W> foo(
+            a: Int,
+            b:<caret> Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams2.kt

@@ -0,0 +1,13 @@
+// MOVE: down
+class A {
+    fun <T, U, W> foo(
+            b: Int,
+            <caret>a: Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams2.kt.after

@@ -0,0 +1,13 @@
+// MOVE: down
+class A {
+    fun <T, U, W> foo(
+            b: Int,
+            c: Int,
+            <caret>a: Int,
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams3.kt

@@ -0,0 +1,13 @@
+// MOVE: up
+class A {
+    fun <T, U, W> foo(
+            a: Int,
+            b:<caret> Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams3.kt.after

@@ -0,0 +1,13 @@
+// MOVE: up
+class A {
+    fun <T, U, W> foo(
+            b:<caret> Int,
+            a: Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams4.kt

@@ -0,0 +1,13 @@
+// MOVE: up
+class A {
+    fun <T, U, W> foo(
+            b: Int,
+            c: Int
+            <caret>a: Int,
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams4.kt.after

@@ -0,0 +1,13 @@
+// MOVE: up
+class A {
+    fun <T, U, W> foo(
+            b: Int,
+            <caret>a: Int,
+            c: Int
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams5.kt

@@ -0,0 +1,14 @@
+// MOVE: down
+// IS_APPLICABLE: false
+class A {
+    fun <T, U, W> foo(
+            b: Int,
+            c: Int
+            <caret>a: Int,
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams6.kt

@@ -0,0 +1,14 @@
+// MOVE: up
+// IS_APPLICABLE: false
+class A {
+    fun <T, U, W> foo(
+            b: Int<caret>,
+            c: Int
+            a: Int,
+    ) {
+
+    }
+    class B {
+
+    }
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams7.kt

@@ -0,0 +1,7 @@
+// MOVE: down
+fun test(
+        a: Int,
+        <caret>b: Int, c: Int,
+        d: Int,
+) {
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams7.kt.after

@@ -0,0 +1,7 @@
+// MOVE: down
+fun test(
+        a: Int,
+        d: Int,
+        <caret>b: Int, c: Int,
+) {
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams8.kt

@@ -0,0 +1,7 @@
+// MOVE: up
+fun test(
+        a: Int,
+        d: Int,
+        <caret>b: Int, c: Int
+) {
+}

idea/testData/codeInsight/moveUpDown/trailingComma/funParams8.kt.after

@@ -0,0 +1,7 @@
+// MOVE: up
+fun test(
+        a: Int,
+        <caret>b: Int, c: Int,
+        d: Int,
+) {
+}

idea/tests/org/jetbrains/kotlin/idea/codeInsight/moveUpDown/AbstractCodeMoverTest.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 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.
  */
 
@@ -22,6 +22,7 @@ import org.jetbrains.kotlin.formatter.FormatSettingsUtil
 import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinDeclarationMover
 import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinExpressionMover
 import org.jetbrains.kotlin.idea.core.script.isScriptChangesNotifierDisabled
+import org.jetbrains.kotlin.idea.formatter.kotlinCustomSettings
 import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightTestCase
 import org.jetbrains.kotlin.test.InTextDirectivesUtils
 import org.jetbrains.kotlin.test.KotlinTestUtils
@@ -36,8 +37,12 @@ abstract class AbstractMoveStatementTest : AbstractCodeMoverTest() {
         doTest(path, KotlinExpressionMover::class.java)
     }
 
-    private fun doTest(path: String, defaultMoverClass: Class<out StatementUpDownMover>) {
-        doTest(path) { isApplicableExpected, direction ->
+    protected fun doTestExpressionWithTrailingComma(path: String) {
+        doTest(path, KotlinExpressionMover::class.java, true)
+    }
+
+    private fun doTest(path: String, defaultMoverClass: Class<out StatementUpDownMover>, trailingComma: Boolean = false) {
+        doTest(path, trailingComma) { isApplicableExpected, direction ->
             val movers = Extensions.getExtensions(StatementUpDownMover.STATEMENT_UP_DOWN_MOVER_EP)
             val info = StatementUpDownMover.MoveInfo()
             val actualMover = movers.firstOrNull {
@@ -68,7 +73,11 @@ abstract class AbstractCodeMoverTest : KotlinLightCodeInsightTestCase() {
         super.tearDown()
     }
 
-    protected fun doTest(path: String, isApplicableChecker: (isApplicableExpected: Boolean, direction: String) -> Unit) {
+    protected fun doTest(
+        path: String,
+        trailingComma: Boolean = false,
+        isApplicableChecker: (isApplicableExpected: Boolean, direction: String) -> Unit
+    ) {
         configureByFile(path)
 
         val fileText = FileUtil.loadFile(File(path), true)
@@ -87,40 +96,39 @@ abstract class AbstractCodeMoverTest : KotlinLightCodeInsightTestCase() {
 
         isApplicableChecker(isApplicableExpected, direction)
 
-        invokeAndCheck(fileText, path, action, isApplicableExpected)
-    }
-
-    private fun invokeAndCheck(fileText: String, path: String, action: EditorAction, isApplicableExpected: Boolean) {
-        val editor = editor_
-        val project = editor.project!!
-
         val codeStyleSettings = CodeStyle.getSettings(project)
-        val configurator = FormatSettingsUtil.createConfigurator(fileText, codeStyleSettings)
-        configurator.configureSettings()
-
         try {
-            val dataContext = currentEditorDataContext_
+            val configurator = FormatSettingsUtil.createConfigurator(fileText, codeStyleSettings)
+            configurator.configureSettings()
 
-            val before = editor.document.text
-            runWriteAction { action.actionPerformed(editor, dataContext) }
-
-            val after = editor.document.text
-            val actionDoesNothing = after == before
-
-            TestCase.assertEquals(isApplicableExpected, !actionDoesNothing)
-
-            if (isApplicableExpected) {
-                val afterFilePath = "$path.after"
-                try {
-                    checkResultByFile(afterFilePath)
-                } catch (e: ComparisonFailure) {
-                    KotlinTestUtils.assertEqualsToFile(File(afterFilePath), editor)
-                }
-            }
+            if (trailingComma) codeStyleSettings.kotlinCustomSettings.ALLOW_TRAILING_COMMA = true
+            invokeAndCheck(path, action, isApplicableExpected)
         } finally {
             codeStyleSettings.clearCodeStyleSettings()
         }
     }
 
+    private fun invokeAndCheck(path: String, action: EditorAction, isApplicableExpected: Boolean) {
+        val editor = editor_
+        val dataContext = currentEditorDataContext_
+
+        val before = editor.document.text
+        runWriteAction { action.actionPerformed(editor, dataContext) }
+
+        val after = editor.document.text
+        val actionDoesNothing = after == before
+
+        TestCase.assertEquals(isApplicableExpected, !actionDoesNothing)
+
+        if (isApplicableExpected) {
+            val afterFilePath = "$path.after"
+            try {
+                checkResultByFile(afterFilePath)
+            } catch (e: ComparisonFailure) {
+                KotlinTestUtils.assertEqualsToFile(File(afterFilePath), editor)
+            }
+        }
+    }
+
     override fun getTestDataPath() = ""
 }

idea/tests/org/jetbrains/kotlin/idea/codeInsight/moveUpDown/AbstractCodeMoverTest.kt.191

@@ -1,5 +1,5 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Copyright 2010-2020 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.
  */
 
@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.formatter.FormatSettingsUtil
 import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinDeclarationMover
 import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinExpressionMover
 import org.jetbrains.kotlin.idea.core.script.isScriptChangesNotifierDisabled
+import org.jetbrains.kotlin.idea.formatter.kotlinCustomSettings
 import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightTestCase
 import org.jetbrains.kotlin.test.InTextDirectivesUtils
 import org.jetbrains.kotlin.test.KotlinTestUtils
@@ -37,8 +38,12 @@ abstract class AbstractMoveStatementTest : AbstractCodeMoverTest() {
         doTest(path, KotlinExpressionMover::class.java)
     }
 
-    private fun doTest(path: String, defaultMoverClass: Class<out StatementUpDownMover>) {
-        doTest(path) { isApplicableExpected, direction ->
+    protected fun doTestExpressionWithTrailingComma(path: String) {
+        doTest(path, KotlinExpressionMover::class.java, true)
+    }
+
+    private fun doTest(path: String, defaultMoverClass: Class<out StatementUpDownMover>, trailingComma: Boolean = false) {
+        doTest(path, trailingComma) { isApplicableExpected, direction ->
             val movers = Extensions.getExtensions(StatementUpDownMover.STATEMENT_UP_DOWN_MOVER_EP)
             val info = StatementUpDownMover.MoveInfo()
             val actualMover = movers.firstOrNull {
@@ -53,7 +58,7 @@ abstract class AbstractMoveStatementTest : AbstractCodeMoverTest() {
 
 abstract class AbstractMoveLeftRightTest : AbstractCodeMoverTest() {
     protected fun doTest(path: String) {
-        doTest(path) { _, _ ->  }
+        doTest(path) { _, _ -> }
     }
 }
 
@@ -69,12 +74,15 @@ abstract class AbstractCodeMoverTest : KotlinLightCodeInsightTestCase() {
         super.tearDown()
     }
 
-    protected fun doTest(path: String, isApplicableChecker: (isApplicableExpected: Boolean, direction: String) -> Unit) {
+    protected fun doTest(
+        path: String,
+        trailingComma: Boolean = false,
+        isApplicableChecker: (isApplicableExpected: Boolean, direction: String) -> Unit
+    ) {
         configureByFile(path)
 
         val fileText = FileUtil.loadFile(File(path), true)
-        val direction = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// MOVE: ")
-                        ?: error("No MOVE directive found")
+        val direction = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// MOVE: ") ?: error("No MOVE directive found")
 
         val action = when (direction) {
             "up" -> MoveStatementUpAction()
@@ -89,41 +97,38 @@ abstract class AbstractCodeMoverTest : KotlinLightCodeInsightTestCase() {
 
         isApplicableChecker(isApplicableExpected, direction)
 
-        invokeAndCheck(fileText, path, action, isApplicableExpected)
+        val codeStyleSettings = CodeStyle.getSettings(editor_.project!!)
+        try {
+            val configurator = FormatSettingsUtil.createConfigurator(fileText, codeStyleSettings)
+            configurator.configureSettings()
+
+            if (trailingComma) codeStyleSettings.kotlinCustomSettings.ALLOW_TRAILING_COMMA = true
+            invokeAndCheck(path, action, isApplicableExpected)
+        } finally {
+            codeStyleSettings.clearCodeStyleSettings()
+        }
     }
 
-    private fun invokeAndCheck(fileText: String, path: String, action: EditorAction, isApplicableExpected: Boolean) {
+    private fun invokeAndCheck(path: String, action: EditorAction, isApplicableExpected: Boolean) {
         val editor = editor_
-        val project = editor.project!!
+        val dataContext = currentEditorDataContext_
 
-        val codeStyleSettings = CodeStyle.getSettings(project)
-        val configurator = FormatSettingsUtil.createConfigurator(fileText, codeStyleSettings)
-        configurator.configureSettings()
+        val before = editor.document.text
+        runWriteAction { action.actionPerformed(editor, dataContext) }
 
-        try {
-            val dataContext = currentEditorDataContext_
+        val after = editor.document.text
+        val actionDoesNothing = after == before
 
-            val before = editor.document.text
-            runWriteAction { action.actionPerformed(editor, dataContext) }
+        TestCase.assertEquals(isApplicableExpected, !actionDoesNothing)
 
-            val after = editor.document.text
-            val actionDoesNothing = after == before
-
-            TestCase.assertEquals(isApplicableExpected, !actionDoesNothing)
-
-            if (isApplicableExpected) {
-                val afterFilePath = path + ".after"
-                try {
-                    checkResultByFile(afterFilePath)
-                }
-                catch (e: ComparisonFailure) {
-                    KotlinTestUtils.assertEqualsToFile(File(afterFilePath), editor)
-                }
+        if (isApplicableExpected) {
+            val afterFilePath = "$path.after"
+            try {
+                checkResultByFile(afterFilePath)
+            } catch (e: ComparisonFailure) {
+                KotlinTestUtils.assertEqualsToFile(File(afterFilePath), editor)
             }
         }
-        finally {
-            codeStyleSettings.clearCodeStyleSettings()
-        }
     }
 
     override fun getTestDataPath() = ""

idea/tests/org/jetbrains/kotlin/idea/codeInsight/moveUpDown/AbstractCodeMoverTest.kt.as40

@@ -1,126 +0,0 @@
-/*
- * Copyright 2010-2019 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 org.jetbrains.kotlin.idea.codeInsight.moveUpDown
-
-import com.intellij.application.options.CodeStyle
-import com.intellij.codeInsight.editorActions.moveLeftRight.MoveElementLeftAction
-import com.intellij.codeInsight.editorActions.moveLeftRight.MoveElementRightAction
-import com.intellij.codeInsight.editorActions.moveUpDown.MoveStatementDownAction
-import com.intellij.codeInsight.editorActions.moveUpDown.MoveStatementUpAction
-import com.intellij.codeInsight.editorActions.moveUpDown.StatementUpDownMover
-import com.intellij.openapi.application.ApplicationManager
-import com.intellij.openapi.application.runWriteAction
-import com.intellij.openapi.editor.actionSystem.EditorAction
-import com.intellij.openapi.extensions.Extensions
-import com.intellij.openapi.util.io.FileUtil
-import junit.framework.ComparisonFailure
-import junit.framework.TestCase
-import org.jetbrains.kotlin.formatter.FormatSettingsUtil
-import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinDeclarationMover
-import org.jetbrains.kotlin.idea.codeInsight.upDownMover.KotlinExpressionMover
-import org.jetbrains.kotlin.idea.core.script.isScriptChangesNotifierDisabled
-import org.jetbrains.kotlin.idea.test.KotlinLightCodeInsightTestCase
-import org.jetbrains.kotlin.test.InTextDirectivesUtils
-import org.jetbrains.kotlin.test.KotlinTestUtils
-import java.io.File
-
-abstract class AbstractMoveStatementTest : AbstractCodeMoverTest() {
-    protected fun doTestClassBodyDeclaration(path: String) {
-        doTest(path, KotlinDeclarationMover::class.java)
-    }
-
-    protected fun doTestExpression(path: String) {
-        doTest(path, KotlinExpressionMover::class.java)
-    }
-
-    private fun doTest(path: String, defaultMoverClass: Class<out StatementUpDownMover>) {
-        doTest(path) { isApplicableExpected, direction ->
-            val movers = Extensions.getExtensions(StatementUpDownMover.STATEMENT_UP_DOWN_MOVER_EP)
-            val info = StatementUpDownMover.MoveInfo()
-            val actualMover = movers.firstOrNull {
-                it.checkAvailable(editor, file, info, direction == "down")
-            } ?: error("No mover found")
-
-            assertEquals("Unmatched movers", defaultMoverClass.name, actualMover::class.java.name)
-            assertEquals("Invalid applicability", isApplicableExpected, info.toMove2 != null)
-        }
-    }
-}
-
-abstract class AbstractMoveLeftRightTest : AbstractCodeMoverTest() {
-    protected fun doTest(path: String) {
-        doTest(path) { _, _ -> }
-    }
-}
-
-@Suppress("DEPRECATION")
-abstract class AbstractCodeMoverTest : KotlinLightCodeInsightTestCase() {
-    override fun setUp() {
-        super.setUp()
-        ApplicationManager.getApplication().isScriptChangesNotifierDisabled = true
-    }
-
-    override fun tearDown() {
-        ApplicationManager.getApplication().isScriptChangesNotifierDisabled = false
-        super.tearDown()
-    }
-
-    protected fun doTest(path: String, isApplicableChecker: (isApplicableExpected: Boolean, direction: String) -> Unit) {
-        configureByFile(path)
-
-        val fileText = FileUtil.loadFile(File(path), true)
-        val direction = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// MOVE: ") ?: error("No MOVE directive found")
-
-        val action = when (direction) {
-            "up" -> MoveStatementUpAction()
-            "down" -> MoveStatementDownAction()
-            "left" -> MoveElementLeftAction()
-            "right" -> MoveElementRightAction()
-            else -> error("Unknown direction: $direction")
-        }
-
-        val isApplicableString = InTextDirectivesUtils.findStringWithPrefixes(fileText, "// IS_APPLICABLE: ")
-        val isApplicableExpected = isApplicableString == null || isApplicableString == "true"
-
-        isApplicableChecker(isApplicableExpected, direction)
-
-        invokeAndCheck(fileText, path, action, isApplicableExpected)
-    }
-
-    private fun invokeAndCheck(fileText: String, path: String, action: EditorAction, isApplicableExpected: Boolean) {
-        val editor = editor_
-        val project = editor.project!!
-
-        val codeStyleSettings = CodeStyle.getSettings(project)
-        val configurator = FormatSettingsUtil.createConfigurator(fileText, codeStyleSettings)
-        configurator.configureSettings()
-
-        try {
-            val dataContext = currentEditorDataContext_
-
-            val before = editor.document.text
-            runWriteAction { action.actionPerformed(editor, dataContext) }
-
-            val after = editor.document.text
-            val actionDoesNothing = after == before
-
-            TestCase.assertEquals(isApplicableExpected, !actionDoesNothing)
-
-            if (isApplicableExpected) {
-                val afterFilePath = "$path.after"
-                try {
-                    checkResultByFile(afterFilePath)
-                } catch (e: ComparisonFailure) {
-                    KotlinTestUtils.assertEqualsToFile(File(afterFilePath), editor)
-                }
-            }
-        } finally {
-            codeStyleSettings.clearCodeStyleSettings()
-        }
-    }
-
-    override fun getTestDataPath() = ""
-}

idea/tests/org/jetbrains/kotlin/idea/codeInsight/moveUpDown/MoveStatementTestGenerated.java

@@ -1366,4 +1366,137 @@ public class MoveStatementTestGenerated extends AbstractMoveStatementTest {
             runTest("idea/testData/codeInsight/moveUpDown/parametersAndArguments/funParams8.kt");
         }
     }
+
+    @TestMetadata("idea/testData/codeInsight/moveUpDown/trailingComma")
+    @TestDataPath("$PROJECT_ROOT")
+    @RunWith(JUnit3RunnerWithInners.class)
+    public static class TrailingComma extends AbstractMoveStatementTest {
+        private void runTest(String testDataFilePath) throws Exception {
+            KotlinTestUtils.runTest(this::doTestExpressionWithTrailingComma, this, testDataFilePath);
+        }
+
+        public void testAllFilesPresentInTrailingComma() throws Exception {
+            KotlinTestUtils.assertAllTestsPresentByMetadataWithExcluded(this.getClass(), new File("idea/testData/codeInsight/moveUpDown/trailingComma"), Pattern.compile("^(.+)\\.kt$"), null, true);
+        }
+
+        @TestMetadata("callArgs1.kt")
+        public void testCallArgs1() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs1.kt");
+        }
+
+        @TestMetadata("callArgs2.kt")
+        public void testCallArgs2() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs2.kt");
+        }
+
+        @TestMetadata("callArgs3.kt")
+        public void testCallArgs3() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs3.kt");
+        }
+
+        @TestMetadata("callArgs4.kt")
+        public void testCallArgs4() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs4.kt");
+        }
+
+        @TestMetadata("callArgs5.kt")
+        public void testCallArgs5() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs5.kt");
+        }
+
+        @TestMetadata("callArgs6.kt")
+        public void testCallArgs6() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs6.kt");
+        }
+
+        @TestMetadata("callArgs7.kt")
+        public void testCallArgs7() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs7.kt");
+        }
+
+        @TestMetadata("callArgs8.kt")
+        public void testCallArgs8() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/callArgs8.kt");
+        }
+
+        @TestMetadata("classParams1.kt")
+        public void testClassParams1() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams1.kt");
+        }
+
+        @TestMetadata("classParams2.kt")
+        public void testClassParams2() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams2.kt");
+        }
+
+        @TestMetadata("classParams3.kt")
+        public void testClassParams3() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams3.kt");
+        }
+
+        @TestMetadata("classParams4.kt")
+        public void testClassParams4() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams4.kt");
+        }
+
+        @TestMetadata("classParams5.kt")
+        public void testClassParams5() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams5.kt");
+        }
+
+        @TestMetadata("classParams6.kt")
+        public void testClassParams6() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams6.kt");
+        }
+
+        @TestMetadata("classParams7.kt")
+        public void testClassParams7() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams7.kt");
+        }
+
+        @TestMetadata("classParams8.kt")
+        public void testClassParams8() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/classParams8.kt");
+        }
+
+        @TestMetadata("funParams1.kt")
+        public void testFunParams1() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams1.kt");
+        }
+
+        @TestMetadata("funParams2.kt")
+        public void testFunParams2() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams2.kt");
+        }
+
+        @TestMetadata("funParams3.kt")
+        public void testFunParams3() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams3.kt");
+        }
+
+        @TestMetadata("funParams4.kt")
+        public void testFunParams4() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams4.kt");
+        }
+
+        @TestMetadata("funParams5.kt")
+        public void testFunParams5() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams5.kt");
+        }
+
+        @TestMetadata("funParams6.kt")
+        public void testFunParams6() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams6.kt");
+        }
+
+        @TestMetadata("funParams7.kt")
+        public void testFunParams7() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams7.kt");
+        }
+
+        @TestMetadata("funParams8.kt")
+        public void testFunParams8() throws Exception {
+            runTest("idea/testData/codeInsight/moveUpDown/trailingComma/funParams8.kt");
+        }
+    }
 }