From 49329ae2272f488949653f5e06b3f2d82e924261 Mon Sep 17 00:00:00 2001
From: Even Oscar Andersen <even.oscar.andersen@qt.io>
Date: Fri, 9 Feb 2024 11:45:06 +0100
Subject: [PATCH] wasm: Add corelib/io/largefile
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The test does not run just like that it is necessary to:
  set maxSizeBits to 28
  mapOffsetOverflow: Settings copied from Linux

Change-Id: Idc276a7e2d777a9a6ad0c0e90d729fb4646a38b6
Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
---
 tests/auto/CMakeLists.txt                         |  1 +
 tests/auto/corelib/io/largefile/tst_largefile.cpp | 15 ++++++++++-----
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/tests/auto/CMakeLists.txt b/tests/auto/CMakeLists.txt
index 73b249d5d1..9a590cf93c 100644
--- a/tests/auto/CMakeLists.txt
+++ b/tests/auto/CMakeLists.txt
@@ -57,6 +57,7 @@ if(QT_BUILD_MINIMAL_ANDROID_MULTI_ABI_TESTS)
 endif()
 
 if(WASM)
+    add_subdirectory(corelib/io/largefile)
     add_subdirectory(corelib/io/qdataurl)
     add_subdirectory(corelib/io/qbuffer)
     add_subdirectory(corelib/io/qabstractfileengine)
diff --git a/tests/auto/corelib/io/largefile/tst_largefile.cpp b/tests/auto/corelib/io/largefile/tst_largefile.cpp
index 6fcd78cf8e..6fa3569c4f 100644
--- a/tests/auto/corelib/io/largefile/tst_largefile.cpp
+++ b/tests/auto/corelib/io/largefile/tst_largefile.cpp
@@ -46,6 +46,8 @@ public:
         // This means that files are limited to 2 GB − 1 bytes.
         // Limit max size to 256MB
         maxSizeBits = 28; // 256 MiB
+    #elif defined (Q_OS_WASM)
+        maxSizeBits = 28; // 256 MiB
     #elif defined(QT_LARGEFILE_SUPPORT)
         maxSizeBits = 36; // 64 GiB
     #else
@@ -491,19 +493,22 @@ void tst_LargeFile::mapFile()
 //Linux: memory-mapping beyond EOF usually succeeds, but depends on the filesystem
 //  32-bit: limited to 44-bit offsets (when sizeof(off_t) == 8)
 //Windows: memory-mapping beyond EOF is not allowed
+//wasm: as for linux
 void tst_LargeFile::mapOffsetOverflow()
 {
     enum {
-#ifdef Q_OS_WIN
+#if defined(Q_OS_WIN)
         Succeeds = false,
         MaxOffset = 63
+#elif defined(Q_OS_WASM)
+        Succeeds = true,
+        MaxOffset = sizeof(QT_OFF_T) > 4 ? 43 : 30
+#elif (defined(Q_OS_LINUX) || defined(Q_OS_ANDROID)) && (Q_PROCESSOR_WORDSIZE == 4)
+        Succeeds = true,
+        MaxOffset = sizeof(QT_OFF_T) > 4 ? 43 : 30
 #else
         Succeeds = true,
-#  if (defined(Q_OS_LINUX) || defined(Q_OS_ANDROID)) && Q_PROCESSOR_WORDSIZE == 4
-        MaxOffset = sizeof(QT_OFF_T) > 4 ? 43 : 30
-#  else
         MaxOffset = 8 * sizeof(QT_OFF_T) - 1
-#  endif
 #endif
     };