From 358eaa3dcea1dee6350c2cbf80aab3c25db4d4d9 Mon Sep 17 00:00:00 2001
From: Cameron Desrochers <Cameron.Desrochers@octasic.com>
Date: Fri, 15 Nov 2019 11:48:06 -0500
Subject: [clang-format] Flexible line endings

Line ending detection is now set with the `DeriveLineEnding` option.
CRLF can now be used as the default line ending by setting `UseCRLF`.
When line ending detection is disabled, all line endings are converted
according to the `UseCRLF` option.

Differential Revision: https://reviews.llvm.org/D19031
---
 clang/unittests/Format/FormatTest.cpp | 90 +++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

(limited to 'clang/unittests/Format/FormatTest.cpp')

diff --git a/clang/unittests/Format/FormatTest.cpp b/clang/unittests/Format/FormatTest.cpp
index b8a73621c77..122c59782b6 100644
--- a/clang/unittests/Format/FormatTest.cpp
+++ b/clang/unittests/Format/FormatTest.cpp
@@ -12500,6 +12500,7 @@ TEST_F(FormatTest, ParsesConfigurationBools) {
   CHECK_PARSE_BOOL(BreakStringLiterals);
   CHECK_PARSE_BOOL(CompactNamespaces);
   CHECK_PARSE_BOOL(ConstructorInitializerAllOnOneLineOrOnePerLine);
+  CHECK_PARSE_BOOL(DeriveLineEnding);
   CHECK_PARSE_BOOL(DerivePointerAlignment);
   CHECK_PARSE_BOOL_FIELD(DerivePointerAlignment, "DerivePointerBinding");
   CHECK_PARSE_BOOL(DisableFormat);
@@ -12528,6 +12529,7 @@ TEST_F(FormatTest, ParsesConfigurationBools) {
   CHECK_PARSE_BOOL(SpaceBeforeCtorInitializerColon);
   CHECK_PARSE_BOOL(SpaceBeforeInheritanceColon);
   CHECK_PARSE_BOOL(SpaceBeforeRangeBasedForLoopColon);
+  CHECK_PARSE_BOOL(UseCRLF);
 
   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterCaseLabel);
   CHECK_PARSE_NESTED_BOOL(BraceWrapping, AfterClass);
@@ -14056,6 +14058,94 @@ TEST_F(FormatTest, SupportsCRLF) {
             format("/*\r\n"
                    "    \r\r\r\n"
                    "*/"));
+
+  FormatStyle style = getLLVMStyle();
+
+  style.DeriveLineEnding = true;
+  style.UseCRLF = false;
+  EXPECT_EQ("union FooBarBazQux {\n"
+            "  int foo;\n"
+            "  int bar;\n"
+            "  int baz;\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "};",
+                   style));
+  style.UseCRLF = true;
+  EXPECT_EQ("union FooBarBazQux {\r\n"
+            "  int foo;\r\n"
+            "  int bar;\r\n"
+            "  int baz;\r\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "};",
+                   style));
+
+  style.DeriveLineEnding = false;
+  style.UseCRLF = false;
+  EXPECT_EQ("union FooBarBazQux {\n"
+            "  int foo;\n"
+            "  int bar;\n"
+            "  int baz;\n"
+            "  int qux;\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "  int qux;\r\n"
+                   "};",
+                   style));
+  style.UseCRLF = true;
+  EXPECT_EQ("union FooBarBazQux {\r\n"
+            "  int foo;\r\n"
+            "  int bar;\r\n"
+            "  int baz;\r\n"
+            "  int qux;\r\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "  int qux;\n"
+                   "};",
+                   style));
+
+  style.DeriveLineEnding = true;
+  style.UseCRLF = false;
+  EXPECT_EQ("union FooBarBazQux {\r\n"
+            "  int foo;\r\n"
+            "  int bar;\r\n"
+            "  int baz;\r\n"
+            "  int qux;\r\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "  int qux;\r\n"
+                   "};",
+                   style));
+  style.UseCRLF = true;
+  EXPECT_EQ("union FooBarBazQux {\n"
+            "  int foo;\n"
+            "  int bar;\n"
+            "  int baz;\n"
+            "  int qux;\n"
+            "};",
+            format("union FooBarBazQux {\r\n"
+                   "  int foo;\n"
+                   "  int bar;\r\n"
+                   "  int baz;\n"
+                   "  int qux;\n"
+                   "};",
+                   style));
 }
 
 TEST_F(FormatTest, MunchSemicolonAfterBlocks) {
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