bats-testing-patterns

#!/usr/bin/env bats
 
setup() {
    # Check for required tools
    if ! command -v jq &>/dev/null; then
        skip "jq is not installed"
    fi
 
    export SCRIPT="${BATS_TEST_DIRNAME}/../bin/script.sh"
}
 
@test "JSON parsing works" {
    skip_if ! command -v jq &>/dev/null
    run my_json_parser '{"key": "value"}'
    [ "$status" -eq 0 ]
}

#!/usr/bin/env bats
 
@test "Script works in bash" {
    bash "${BATS_TEST_DIRNAME}/../bin/script.sh" arg1
}
 
@test "Script works in sh (POSIX)" {
    sh "${BATS_TEST_DIRNAME}/../bin/script.sh" arg1
}
 
@test "Script works in dash" {
    if command -v dash &>/dev/null; then
        dash "${BATS_TEST_DIRNAME}/../bin/script.sh" arg1
    else
        skip "dash not installed"
    fi
}

#!/usr/bin/env bats
 
@test "Multiple independent operations" {
    run bash -c 'for i in {1..10}; do
        my_operation "$i" &
    done
    wait'
    [ "$status" -eq 0 ]
}
 
@test "Concurrent file operations" {
    for i in {1..5}; do
        my_function "$TMPDIR/file$i" &
    done
    wait
    [ -f "$TMPDIR/file1" ]
    [ -f "$TMPDIR/file5" ]
}

#!/usr/bin/env bash
 
# Source script under test
export SCRIPT_DIR="${BATS_TEST_DIRNAME%/*}/bin"
 
# Common test utilities
assert_file_exists() {
    if [ ! -f "$1" ]; then
        echo "Expected file to exist: $1"
        return 1
    fi
}
 
assert_file_equals() {
    local file="$1"
    local expected="$2"
 
    if [ ! -f "$file" ]; then
        echo "File does not exist: $file"
        return 1
    fi
 
    local actual=$(cat "$file")
    if [ "$actual" != "$expected" ]; then
        echo "File contents do not match"
        echo "Expected: $expected"
        echo "Actual: $actual"
        return 1
    fi
}
 
# Create temporary test directory
setup_test_dir() {
    export TEST_DIR=$(mktemp -d)
}
 
cleanup_test_dir() {
    rm -rf "$TEST_DIR"
}

name: Tests
 
on: [push, pull_request]
 
jobs:
  test:
    runs-on: ubuntu-latest
 
    steps:
      - uses: actions/checkout@v3
 
      - name: Install Bats
        run: |
          npm install --global bats
 
      - name: Run Tests
        run: |
          bats tests/*.bats
 
      - name: Run Tests with Tap Reporter
        run: |
          bats tests/*.bats --tap | tee test_output.tap

.PHONY: test test-verbose test-tap
 
test:
	bats tests/*.bats
 
test-verbose:
	bats tests/*.bats --verbose
 
test-tap:
	bats tests/*.bats --tap
 
test-parallel:
	bats tests/*.bats --parallel 4
 
coverage: test
	# Optional: Generate coverage reports