set -euxo pipefail

main() {
    if [[ $TRAVIS_RUST_VERSION == 1.*.* ]]; then
        # test on a fixed version (MSRV) to avoid problems with changes in rustc diagnostics
        cargo test --test ui
    else
        cargo test --lib --examples
    fi
}

# fake Travis variables to be able to run this on a local machine
if [ -z ${TRAVIS_BRANCH-} ]; then
    TRAVIS_BRANCH=auto
fi

if [ -z ${TRAVIS_PULL_REQUEST-} ]; then
    TRAVIS_PULL_REQUEST=false
fi

if [ -z ${TRAVIS_RUST_VERSION-} ]; then
    case $(rustc -V) in
        *nightly*)
            TRAVIS_RUST_VERSION=nightly
            ;;
        *beta*)
            TRAVIS_RUST_VERSION=beta
            ;;
        *)
            TRAVIS_RUST_VERSION=stable
            ;;
    esac
fi

if [ $TRAVIS_BRANCH != master ] || [ $TRAVIS_PULL_REQUEST != false ]; then
    main
fi