File: test_functions.sh

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#!/bin/bash
##===----------------------------------------------------------------------===##
##
## This source file is part of the SwiftNIO open source project
##
## Copyright (c) 2017-2018 Apple Inc. and the SwiftNIO project authors
## Licensed under Apache License v2.0
##
## See LICENSE.txt for license information
## See CONTRIBUTORS.txt for the list of SwiftNIO project authors
##
## SPDX-License-Identifier: Apache-2.0
##
##===----------------------------------------------------------------------===##
function fail() {
    echo >&2 "FAILURE: $*"
    false
}

function assert_equal() {
    if [[ "$1" != "$2" ]]; then
        fail "expected '$1', got '$2' ${3-}"
    fi
}

function assert_equal_files() {
    if ! cmp -s "$1" "$2"; then
        diff -u "$1" "$2" || true
        echo
        echo "--- SNIP ($1, size=$(wc "$1"), SHA=$(shasum "$1")) ---"
        cat "$1"
        echo "--- SNAP ($1)---"
        echo "--- SNIP ($2, size=$(wc "$2"), SHA=$(shasum "$2")) ---"
        cat "$2"
        echo "--- SNAP ($2) ---"
        fail "file '$1' not equal to '$2'"
    fi
}

function assert_less_than() {
    if [[ ! "$1" -lt "$2" ]]; then
        fail "assertion '$1' < '$2' failed"
    fi
}

function assert_less_than_or_equal() {
    if [[ ! "$1" -le "$2" ]]; then
        fail "assertion '$1' <= '$2' failed"
    fi
}

function assert_greater_than() {
    if [[ ! "$1" -gt "$2" ]]; then
        fail "assertion '$1' > '$2' failed"
    fi
}

function assert_greater_than_or_equal() {
    if [[ ! "$1" -ge "$2" ]]; then
        fail "assertion '$1' >= '$2' failed"
    fi
}

g_has_previously_infoed=false

function info() {
    if $g_show_info; then
        if ! $g_has_previously_infoed; then
            echo >&3 || true # echo an extra newline so it looks better
            g_has_previously_infoed=true
        fi
        echo >&3 "info: $*" || true
    fi
}

function warn() {
    echo >&4 "warning: $*"
}