Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -18467,6 +18467,22 @@
               PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
   CHECK_PARSE("PackConstructorInitializers: NextLine",
               PackConstructorInitializers, FormatStyle::PCIS_NextLine);
+  // For backward compatibility:
+  CHECK_PARSE("BasedOnStyle: Google\n"
+              "ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
+              "AllowAllConstructorInitializersOnNextLine: false",
+              PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
+  Style.PackConstructorInitializers = FormatStyle::PCIS_NextLine;
+  CHECK_PARSE("BasedOnStyle: Google\n"
+              "ConstructorInitializerAllOnOneLineOrOnePerLine: false",
+              PackConstructorInitializers, FormatStyle::PCIS_BinPack);
+  CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
+              "AllowAllConstructorInitializersOnNextLine: false",
+              PackConstructorInitializers, FormatStyle::PCIS_CurrentLine);
+  Style.PackConstructorInitializers = FormatStyle::PCIS_BinPack;
+  CHECK_PARSE("ConstructorInitializerAllOnOneLineOrOnePerLine: true\n"
+              "AllowAllConstructorInitializersOnNextLine: true",
+              PackConstructorInitializers, FormatStyle::PCIS_NextLine);
 
   Style.EmptyLineBeforeAccessModifier = FormatStyle::ELBAMS_LogicalBlock;
   CHECK_PARSE("EmptyLineBeforeAccessModifier: Never",