unikernel/duniverse/dune_/test/blackbox-tests/test-cases/long-lines.t

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+Test the behavior of long lines
+
+In the default output, user input affects on which lines which of the output
+lines appear. For example, with a short project name, the line wraps later:
+
+  $ cat > dune-project <<EOF
+  > (lang dune 3.17)
+  > (package
+  >  (name short))
+  > EOF
+  $ dune build
+  Error: The package short does not have any user defined stanzas attached to
+  it. If this is intentional, add (allow_empty) to the package definition in
+  the dune-project file
+  -> required by _build/default/short.install
+  -> required by alias all
+  -> required by alias default
+  [1]
+
+With a long project name, there are less words on the line and thus it wraps in
+a different position:
+
+  $ cat > dune-project <<EOF
+  > (lang dune 3.17)
+  > (package
+  >  (name verylongnamethatcauseslinewrappingincases))
+  > EOF
+  $ dune build
+  Error: The package verylongnamethatcauseslinewrappingincases does not have
+  any user defined stanzas attached to it. If this is intentional, add
+  (allow_empty) to the package definition in the dune-project file
+  -> required by
+     _build/default/verylongnamethatcauseslinewrappingincases.install
+  -> required by alias all
+  -> required by alias default
+  [1]
+
+Disabling line breaks should thus only break lines where there are explicit
+line breaks in the input and not when the line gets too long.
+
+  $ export DUNE_CONFIG__SKIP_LINE_BREAK=enabled
+  $ dune build
+  Error: The package verylongnamethatcauseslinewrappingincases does not have any user defined stanzas attached to it. If this is intentional, add (allow_empty) to the package definition in the dune-project file
+  -> required by _build/default/verylongnamethatcauseslinewrappingincases.install
+  -> required by alias all
+  -> required by alias default
+  [1]