TextCompare test util

testutil/CMakeLists.txt

@@ -5,6 +5,7 @@ set (INFRA_TESTUTIL_PUBLIC_HEADERS
     ${CMAKE_CURRENT_SOURCE_DIR}/include/infra/test/printsupport.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/infra/test/reporter.h
     ${CMAKE_CURRENT_SOURCE_DIR}/include/infra/test/tempdir.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/include/infra/test/textcompare.h
 )
 
 add_library(infratestutil

testutil/include/infra/test/textcompare.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "infra/filesystem.h"
+
+#include <doctest/doctest.h>
+
+namespace inf::test {
+
+inline void check_strings_equal_ignore_line_endings(std::string expected, std::string actual)
+{
+    str::replace_in_place(expected, "\r\n", "\n");
+    str::replace_in_place(actual, "\r\n", "\n");
+
+    CHECK(expected == actual);
+}
+
+inline void check_text_files_equal_ignore_line_endings(const fs::path& expected, const fs::path& actual)
+{
+    auto expectedContents = file::read_as_text(expected);
+    auto actualContents   = file::read_as_text(actual);
+
+    check_strings_equal_ignore_line_endings(expectedContents, actualContents);
+}
+
+}