Create Vader tests for ALE linters callbacks quickly

create-callback-vader-test

#!/bin/bash -eu

# A script for quickly creating Vader tests for ALE linter callbacks.

# Generate boilerplate for variables.
variables=()

while read -r; do
    variables+=("ale_$REPLY")
done < <(grep 'ale#Set' "$1" | grep -o '[a-z]\+_[a-z_]\+')

echo 'Before:'

for var in "${variables[@]}"; do
    echo "  Save $var"
done

echo

for var in "${variables[@]}"; do
    echo "  unlet! $var"
done

# Add junk for loading the linter Vim script and resetting the linters.
echo
echo "  runtime $1"
echo
echo 'After:'
echo '  Restore'
echo
echo '  call ale#linter#Reset()'

# Add some blank Execute blocks with some assertions for each function.
function_names=()

while read -r; do
    function_names+=("$REPLY")
done < <(grep '^function!' "$1" | grep -o 'ale_linters[#a-zA-Z_]\+')

for name in "${function_names[@]}"; do
    echo
    echo "Execute(Test $name):"
    echo "  AssertEqual [], $name(bufnr(''))"
done