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w6/student_tests.sh

+#!/usr/bin/env bats
+
+# File: student_tests.sh
+# 
+# Create your unit tests suit in this file
+
+@test "Check if shell starts" {
+    run ./dsh <<< "exit"
+    [ "$status" -eq 0 ]
+        # These echo commands will help with debugging and will only print
+    #if the test fails
+    echo "Captured stdout:" 
+    echo "Output: $output"
+    echo "Exit Status: $status"
+    echo "${stripped_output} -> ${expected_output}"
+
+    # Check exact match
+    [ "$stripped_output" = "$expected_output" ]
+}
+
+@test "Example: check ls runs without errors" {
+    run ./dsh <<EOF                
+ls
+EOF
+
+    # Assertions
+    [ "$status" -eq 0 ]
+        # These echo commands will help with debugging and will only print
+    #if the test fails
+    echo "Captured stdout:" 
+    echo "Output: $output"
+    echo "Exit Status: $status"
+    echo "${stripped_output} -> ${expected_output}"
+
+    # Check exact match
+    [ "$stripped_output" = "$expected_output" ]
+}
+
+@test "Create and navigate into new directory" {
+    run ./dsh <<EOF
+mkdir -p /tmp/student_test_dir
+cd /tmp/student_test_dir
+pwd
+EOF
+
+    # Remove extra spaces but **preserve newlines**
+    stripped_output=$(echo "$output" | tr -s '[:space:]' | tr '\n' '|' )
+
+    # Adjust expected output to match actual shell behavior
+    expected_output="/tmp/student_test_dir|dsh2> dsh2> dsh2> dsh2> |cmd loop returned 0|"
+
+    # Debugging output
+    echo "Captured stdout:"
+    echo "Output: $output"
+    echo "Exit Status: $status"
+    echo "${stripped_output} -> ${expected_output}"
+
+    # Assertion: Check exact match
+    [ "$stripped_output" = "$expected_output" ]
+}
+
+@test "Handle command execution failures gracefully" {
+    run ./dsh <<< "command_that_does_not_exist"
+    
+    # Expected error message
+    expected_error="execvp failed: No such file or directory"
+
+    
+
+    # Check if output contains the expected error message
+    [[ "$output" == *"$expected_error"* ]]
+
+     # Debugging output
+    echo "Captured stdout:"
+    echo "Output: $output"
+    echo "Exit Status: $status"
+    echo "${stripped_output} -> ${expected_output}"
+
+    # Assertion: Check exact match
+    [ "$stripped_output" = "$expected_output" ]
+}
+
+@test "Detect too many arguments for built-in cd" {
+    run ./dsh <<< "cd /tmp extra_argument"
+    
+    # Expected error message
+    expected_error="error: cd command accepts at most 1 argument"
+
+    
+
+    # Check if output contains the expected error message
+    [[ "$output" == *"$expected_error"* ]]
+
+    # Debugging output
+    echo "Captured stdout:"
+    echo "Output: $output"
+    echo "Exit Status: $status"
+    # Assertion: Check exact match
+    [ "$stripped_output" = "$expected_output" ]
+}