From b45cf8967a73017505d40d201e602d2ed884d170 Mon Sep 17 00:00:00 2001
From: "Anna.Kozlova" <anna.kozlova@jetbrains.com>
Date: Tue, 7 Feb 2017 09:45:21 +0100
Subject: [PATCH] check for case sensitive fs

---
 .../intellij/codeInsight/CodeInsightTestCase.java    |  5 +++++
 .../LightPlatformCodeInsightTestCase.java            | 12 +++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/java/testFramework/src/com/intellij/codeInsight/CodeInsightTestCase.java b/java/testFramework/src/com/intellij/codeInsight/CodeInsightTestCase.java
index e10fbee71add..5111b4f81126 100644
--- a/java/testFramework/src/com/intellij/codeInsight/CodeInsightTestCase.java
+++ b/java/testFramework/src/com/intellij/codeInsight/CodeInsightTestCase.java
@@ -133,6 +133,9 @@ public abstract class CodeInsightTestCase extends PsiTestCase {
     final VirtualFile[] vFiles = new VirtualFile[files.length];
     for (int i = 0; i < files.length; i++) {
       vFiles[i] = findVirtualFile(files[i]);
+      if (vFiles[i] != null) {
+        VfsTestUtil.assertFilePathEndsWithCaseSensitivePath(vFiles[i], files[i]);
+      }
     }
 
     File projectFile = projectRoot == null ? null : new File(getTestDataPath() + projectRoot);
@@ -454,6 +457,8 @@ public abstract class CodeInsightTestCase extends PsiTestCase {
         PsiDocumentManager.getInstance(myProject).commitAllDocuments();
 
         VirtualFile vFile = findVirtualFile(filePath);
+
+        VfsTestUtil.assertFilePathEndsWithCaseSensitivePath(vFile, filePath);
         String ft;
         try {
           ft = VfsUtilCore.loadText(vFile);
diff --git a/platform/testFramework/src/com/intellij/testFramework/LightPlatformCodeInsightTestCase.java b/platform/testFramework/src/com/intellij/testFramework/LightPlatformCodeInsightTestCase.java
index 60f9b1a004f0..03f53a01aedc 100644
--- a/platform/testFramework/src/com/intellij/testFramework/LightPlatformCodeInsightTestCase.java
+++ b/platform/testFramework/src/com/intellij/testFramework/LightPlatformCodeInsightTestCase.java
@@ -113,7 +113,9 @@ public abstract class LightPlatformCodeInsightTestCase extends LightPlatformTest
    */
   protected void configureByFile(@TestDataFile @NonNls @NotNull String filePath) {
     try {
-      final File ioFile = new File(getTestDataPath() + filePath);
+      String fullPath = getTestDataPath() + filePath;
+      final File ioFile = new File(fullPath);
+      checkCaseSensitiveFS(fullPath, ioFile);
       String fileText = FileUtilRt.loadFile(ioFile, CharsetToolkit.UTF8, true);
       configureFromFileText(ioFile.getName(), fileText);
     }
@@ -122,6 +124,13 @@ public abstract class LightPlatformCodeInsightTestCase extends LightPlatformTest
     }
   }
 
+  private static void checkCaseSensitiveFS(String fullPath, File ioFile) throws IOException {
+    fullPath = FileUtil.toSystemDependentName(FileUtil.toCanonicalPath(fullPath));
+    if (!ioFile.getCanonicalPath().equals(fullPath)) {
+      throw new RuntimeException("Search for: " + fullPath + "; but found: " + ioFile.getCanonicalPath());
+    }
+  }
+
   @NonNls
   @NotNull
   protected String getTestDataPath() {
@@ -341,6 +350,7 @@ public abstract class LightPlatformCodeInsightTestCase extends LightPlatformTest
     assertTrue(getMessage("Cannot find file " + fullPath, message), ioFile.exists());
     String fileText;
     try {
+     checkCaseSensitiveFS(fullPath, ioFile);
       fileText = FileUtil.loadFile(ioFile, CharsetToolkit.UTF8_CHARSET);
     }
     catch (IOException e) {