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Diffstat (limited to 'src/google/protobuf/compiler/command_line_interface_unittest.cc')
-rw-r--r--src/google/protobuf/compiler/command_line_interface_unittest.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/google/protobuf/compiler/command_line_interface_unittest.cc b/src/google/protobuf/compiler/command_line_interface_unittest.cc
index 0784e781..9da41c02 100644
--- a/src/google/protobuf/compiler/command_line_interface_unittest.cc
+++ b/src/google/protobuf/compiler/command_line_interface_unittest.cc
@@ -882,7 +882,11 @@ TEST_F(CommandLineInterfaceTest, CwdRelativeInputNotMappedError) {
ExpectErrorText(
"$tmpdir/foo.proto: File does not reside within any path "
"specified using --proto_path (or -I). You must specify a "
- "--proto_path which encompasses this file.\n");
+ "--proto_path which encompasses this file. Note that the "
+ "proto_path must be an exact prefix of the .proto file "
+ "names -- protoc is too dumb to figure out when two paths "
+ "(e.g. absolute and relative) are equivalent (it's harder "
+ "than you think).\n");
}
TEST_F(CommandLineInterfaceTest, CwdRelativeInputNotFoundAndNotMappedError) {