From fe662fcb2e622e39fb7954c7933e07d2c133d441 Mon Sep 17 00:00:00 2001
From: Natalia Selezneva <natalia.selezneva@jetbrains.com>
Date: Wed, 17 Jul 2019 11:23:51 +0300
Subject: [PATCH] Provide a mesaage for NPE in scratch tests

---
 .../idea/scratch/output/ToolWindowScratchOutputHandler.kt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/output/ToolWindowScratchOutputHandler.kt b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/output/ToolWindowScratchOutputHandler.kt
index 20a1a9f46b9..bdbde2385dd 100644
--- a/idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/output/ToolWindowScratchOutputHandler.kt
+++ b/idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/output/ToolWindowScratchOutputHandler.kt
@@ -182,7 +182,13 @@ private object TestOutputHandler : ScratchOutputHandlerAdapter() {
     override fun onFinish(file: ScratchFile) {
         ApplicationManager.getApplication().invokeLater {
             if (inlays.isNotEmpty()) {
-                val psiFile = file.getPsiFile()!!
+                val psiFile = file.getPsiFile()
+                    ?: error(
+                        "PsiFile cannot be found for scratch to render inlays in tests:\n" +
+                                "project.isDisposed = ${file.project.isDisposed}\n" +
+                                "inlays = ${inlays.joinToString { it.second }}\n" +
+                                "errors = ${errors.joinToString()}"
+                    )
                 testPrint(file, inlays.map { (expression, text) ->
                     "/** ${getLineInfo(psiFile, expression)} $text */"
                 })