Currently when a lang test fails, (or any snapshot assertion for that
matter) the error message is rather bulky.
This is due to both sides being printed fully, using escaped newlines
(i.e. everything is one line)
This is awful to read and check what the actual difference is. Also
there is no indication that one can update the golden files using the
cli flag.
This commit changes the error message when comparing snapshots against
something
a list of lines is shown, where the output differed. An additional note
about how to update the files automatically was added too
Change-Id: Ibedcf48018c27f924b807fbd42362fb608d27441
Currently, tests are marked as "passed" when golden files are updated.
With this change, the tests are marked as skipped instead.
Additionally finally introduces tests to check if the snapshot behaves
as expected
Change-Id: I438eed70e0b94d561e99cc1e0363092809da827e
Add a snapshot fixture, which allows comparing and updating strings
against external files
resolves#595
Change-Id: I518f594c601eb7805c6492c0352fca753fda04c9
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