student_tests.sh

#!/usr/bin/env bats

# File: student_tests.sh
# 
# Create your unit tests suit in this file

@test "Example: check ls runs without errors" {
    run ./dsh <<EOF                
ls
EOF

    # Assertions
    [ "$status" -eq 0 ]
}

# Test: Basic command execution
@test "Basic command execution: echo" {
    run ./dsh <<EOF
echo Hello World
EOF
    output=$(echo "$output" | tr -d '\r')
    echo "Captured output: $output"  # Debugging
    [ "$status" -eq 0 ]
    [[ "$output" == *"Hello World"* ]]
}

# Test: Input Redirection (`<`)
@test "Input Redirection: wc -w < test_input.txt" {
    echo "Hello World" > test_input.txt
    run ./dsh <<EOF
wc -w < test_input.txt
EOF
    output=$(echo "$output" | tr -d '\r')
    echo "Captured output: $output"  # Debugging
    [ "$status" -eq 0 ]
    [[ "$output" == *"2"* ]]
    rm -f test_input.txt
}



# Test: Built-in Commands (`cd`)
@test "Built-in command: cd" {
    run ./dsh <<EOF
cd /tmp
pwd
EOF
    [ "$status" -eq 0 ]
    [[ "$output" =~ "/tmp" ]]
}

# Test: Built-in Commands (`exit`)
@test "Built-in command: exit" {
    run ./dsh <<EOF
exit
EOF
    [ "$status" -eq 0 ]
}



@test "Output Redirection: echo Hello > test_output.txt" {
    rm -f test_output.txt  # Ensure file does not exist before test
    run ./dsh <<EOF
echo Hello > test_output.txt
EOF
    sleep 1  # Give time for file creation
    echo "Debug: Checking test_output.txt after execution..."
    ls -l test_output.txt
    [ "$status" -eq 0 ]
    if [ ! -f test_output.txt ]; then
        echo "Test Failed: Output file test_output.txt does not exist!"
        exit 1
    fi
    trimmed_output=$(cat test_output.txt | tr -d '\r')
    echo "Captured output: $trimmed_output"
    [[ "$trimmed_output" == *"Hello"* ]]
    rm -f test_output.txt
}