Revert "test: remove too much backslash escapes"

This reverts commit cf4115232ad4fc85168a01bccd495e368a501f06.

They are needed... Sorry...
Revert "test: remove too much backslash escapes"

This reverts commit b0d06b04de3ac837e0a65c9ec663bb46de93faae.

They are needed... Sorry.
Revert "test: remove too much backslash escapes"

This reverts commit 9b7d9b0da59b27c0c836ad4f35e09d487be01e03.

They are needed... Sorry.