91 lines
2.2 KiB
Perl
91 lines
2.2 KiB
Perl
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Test cases when melc is not available
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$ cat > dune-project <<EOF
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> (lang dune 3.8)
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> (using melange 0.1)
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> EOF
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$ cat > main_melange.ml <<EOF
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> let () =
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> print_endline "hello from melange"
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> EOF
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Set up some fake environment without melc
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$ mkdir _path
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$ ln -s $(command -v dune) _path/
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$ ln -s $(command -v ocamlc) _path/
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$ ln -s $(command -v ocamldep) _path/
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For melange.emit stanzas, an error is shown
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$ cat > dune <<EOF
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> (melange.emit
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> (target output)
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> (emit_stdlib false)
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> (modules main_melange)
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> (alias mel))
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> EOF
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$ (unset INSIDE_DUNE; PATH=_path dune build --always-show-command-line --root . @mel 2>&1 | grep Program)
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Error: Program melc not found in the tree or in PATH
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For libraries, if no melange.emit stanza is found, build does not fail
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$ cat > dune <<EOF
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> (library
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> (name lib1)
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> (modules :standard \ main_native)
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> (modes byte melange))
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> (executable
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> (name main_native)
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> (modules main_native)
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> (modes exe byte)
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> (libraries lib1))
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> EOF
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$ cat > main_native.ml <<EOF
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> let () =
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> print_endline Lib1.Lib.t
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> EOF
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$ cat > lib.ml <<EOF
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> let t = "hello from native"
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> EOF
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$ (unset INSIDE_DUNE; PATH=_path dune build --always-show-command-line --root . main_native.bc)
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$ dune exec ./main_native.bc
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hello from native
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If melange.emit stanza is found, but no rules are executed, build does not fail
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$ cat > dune <<EOF
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> (library
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> (name lib1)
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> (modules :standard \ main_native main_melange)
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> (modes byte melange))
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> (executable
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> (name main_native)
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> (modules main_native)
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> (modes exe byte)
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> (libraries lib1))
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> (melange.emit
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> (target output)
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> (emit_stdlib false)
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> (modules main_melange)
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> (libraries lib1))
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> EOF
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$ (unset INSIDE_DUNE; PATH=_path dune build --always-show-command-line --root . main_native.bc)
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$ dune exec ./main_native.bc
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hello from native
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But trying to build any melange artifacts will fail
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$ (unset INSIDE_DUNE; PATH=_path dune build --always-show-command-line --root . output/main_melange.js)
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File ".lib1.objs/melange/_unknown_", line 1, characters 0-0:
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Error: Program melc not found in the tree or in PATH
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(context: default)
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Hint: opam install melange
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[1]
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