basic-cli/tests/file.roc at main · codegod100/basic-cli · GitHub

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app [main!] {

pf: platform "../platform/main.roc",

json: "https://github.com/lukewilliamboswell/roc-json/releases/download/0.13.0/RqendgZw5e1RsQa3kFhgtnMP8efWoqGRsAvubx4-zus.tar.br",

}

import pf.Stdout

import pf.Stderr

import pf.File

import pf.Arg exposing [Arg]

import pf.Cmd

import json.Json

main! : List Arg => Result {} _

main! = |_args|

when run_tests!({}) is

Ok(_) ->

cleanup_test_files!(FilesNeedToExist)

Err(err) ->

_ = cleanup_test_files!(FilesMaybeExist)

Err(Exit(1, "Test run failed:\n\t${Inspect.to_str(err)}"))

run_tests! : {} => Result {} _

run_tests! = |{}|

Stdout.line!("Testing some File functions...")?

Stdout.line!("This will create and manipulate test files in the current directory.")?

Stdout.line!("")?

# Test basic file operations

test_basic_file_operations!({})?

# Test file type checking

test_file_type_checking!({})?

# Test file reader with capacity

test_file_reader_with_capacity!({})?

# Test hard link creation

test_hard_link!({})?

# Test file rename

test_file_rename!({})?

# Test file exists

test_file_exists!({})?

Stdout.line!("\nI ran all file function tests.")

test_basic_file_operations! : {} => Result {} _

test_basic_file_operations! = |{}|

Stdout.line!("Testing File.write_bytes! and File.read_bytes!:")?

test_bytes = [72, 101, 108, 108, 111, 44, 32, 87, 111, 114, 108, 100, 33] # "Hello, World!" in bytes

File.write_bytes!(test_bytes, "test_bytes.txt")?

file_content_bytes = File.read_bytes!("test_bytes.txt")?

Stdout.line!("Bytes in test_bytes.txt: ${Inspect.to_str(file_content_bytes)}")?

Stdout.line!("\nTesting File.write!:")?

File.write!({ some: "json stuff" }, "test_write.json", Json.utf8)?

json_file_content = File.read_utf8!("test_write.json")?

Stdout.line!("Content of test_write.json: ${json_file_content}")?

Ok({})

test_file_type_checking! : {} => Result {} _

test_file_type_checking! = |{}|

Stdout.line!("\nTesting File.is_file!:")?

is_file_result = File.is_file!("test_bytes.txt")?

if is_file_result then

Stdout.line!("✓ test_bytes.txt is confirmed to be a file")?

else

Stderr.line!("✗ test_bytes.txt is not recognized as a file")?

Stdout.line!("\nTesting File.is_sym_link!:")?

is_symlink_one = File.is_sym_link!("test_bytes.txt")?

if is_symlink_one then

Stderr.line!("✗ test_bytes.txt is a symbolic link")?

else

Stdout.line!("✓ test_bytes.txt is not a symbolic link")?

Cmd.exec!("ln",["-s", "test_bytes.txt","test_symlink.txt"])?

is_symlink_two = File.is_sym_link!("test_symlink.txt")?

if is_symlink_two then

Stdout.line!("✓ test_symlink.txt is a symbolic link")?

else

Stderr.line!("✗ test_symlink.txt is not a symbolic link")?

Stdout.line!("\nTesting File.type!:")?

file_type_file = File.type!("test_bytes.txt")?

Stdout.line!("test_bytes.txt file type: ${Inspect.to_str(file_type_file)}")?

file_type_dir = File.type!(".")?

Stdout.line!(". file type: ${Inspect.to_str(file_type_dir)}")?

file_type_symlink = File.type!("test_symlink.txt")?

Stdout.line!("test_symlink.txt file type: ${Inspect.to_str(file_type_symlink)}")?

Ok({})

test_file_reader_with_capacity! : {} => Result {} _

test_file_reader_with_capacity! = |{}|

Stdout.line!("\nTesting File.open_reader_with_capacity!:")?

# First, create a multi-line test file

multi_line_content = "First line\nSecond line\nThird line\n"

File.write_utf8!(multi_line_content, "test_multiline.txt")?

# Open reader with custom capacity

reader_buf_size = 3

reader = File.open_reader_with_capacity!("test_multiline.txt", reader_buf_size)?

Stdout.line!("✓ Successfully opened reader with ${Num.to_str(reader_buf_size)} byte capacity")?

# Read lines one by one

Stdout.line!("\nReading lines from file:")?

line1_bytes = File.read_line!(reader)?

line1_str = Str.from_utf8(line1_bytes) ? |_| LineOneInvalidUtf8

Stdout.line!("Line 1: ${line1_str}")?

line2_bytes = File.read_line!(reader)?

line2_str = Str.from_utf8(line2_bytes) ? |_| LineTwoInvalidUtf8

Stdout.line!("Line 2: ${line2_str}")?

Ok({})

test_hard_link! : {} => Result {} _

test_hard_link! = |{}|

Stdout.line!("\nTesting File.hard_link!:")?

# Create original file

File.write_utf8!("Original file content for hard link test", "test_original_file.txt")?

# Create hard link

when File.hard_link!("test_original_file.txt", "test_link_to_original.txt") is

Ok({}) ->

Stdout.line!("✓ Successfully created hard link: test_link_to_original.txt")?

ls_li_output =

Cmd.new("ls")

|> Cmd.args(["-li", "test_original_file.txt", "test_link_to_original.txt"])

|> Cmd.exec_output!()?

inodes =

Str.split_on(ls_li_output.stdout_utf8, "\n")

|> List.map(|line|

Str.split_on(line, " ")

|> List.take_first(1)

)

first_inode = List.get(inodes, 0) ? |_| FirstInodeNotFound

second_inode = List.get(inodes, 1) ? |_| SecondInodeNotFound

Stdout.line!("Hard link inodes should be equal: ${Inspect.to_str(first_inode == second_inode)}")?

# Verify both files exist and have same content

original_content = File.read_utf8!("test_original_file.txt")?

link_content = File.read_utf8!("test_link_to_original.txt")?

if original_content == link_content then

Stdout.line!("✓ Hard link contains same content as original")

else

Stderr.line!("✗ Hard link content differs from original")

Err(err) ->

Stderr.line!("✗ Hard link creation failed: ${Inspect.to_str(err)}")

test_file_rename! : {} => Result {} _

test_file_rename! = |{}|

Stdout.line!("\nTesting File.rename!:")?

# Create original file

original_name = "test_rename_original.txt"

new_name = "test_rename_new.txt"

File.write_utf8!("Content for rename test", original_name)?

# Rename the file

when File.rename!(original_name, new_name) is

Ok({}) ->

Stdout.line!("✓ Successfully renamed ${original_name} to ${new_name}")?

# Verify original file no longer exists

original_exists_after =

when File.is_file!(original_name) is

Ok(exists) -> exists

Err(_) -> Bool.false

if original_exists_after then

Stderr.line!("✗ Original file ${original_name} still exists after rename")?

else

Stdout.line!("✓ Original file ${original_name} no longer exists")?

# Verify new file exists and has correct content

new_exists = File.is_file!(new_name)?

if new_exists then

Stdout.line!("✓ Renamed file ${new_name} exists")?

content = File.read_utf8!(new_name)?

if content == "Content for rename test" then

Stdout.line!("✓ Renamed file has correct content")?

else

Stderr.line!("✗ Renamed file has incorrect content")?

else

Stderr.line!("✗ Renamed file ${new_name} does not exist")?

Err(err) ->

Stderr.line!("✗ File rename failed: ${Inspect.to_str(err)}")?

Ok({})

test_file_exists! : {} => Result {} _

test_file_exists! = |{}|

Stdout.line!("\nTesting File.exists!:")?

# Test that a file that exists returns true

filename = "test_exists.txt"

File.write_utf8!("", filename)?

test_file_exists = File.exists!(filename) ? FileExistsCheckFailed

if test_file_exists then

Stdout.line!("✓ File.exists! returns true for a file that exists")?

else

Stderr.line!("✗ File.exists! returned false for a file that exists")?

# Test that a file that does not exist returns false

File.delete!(filename)?

test_file_exists_after_delete = File.exists!(filename) ? FileExistsCheckAfterDeleteFailed

if test_file_exists_after_delete then

Stderr.line!("✗ File.exists! returned true for a file that does not exist")?

else

Stdout.line!("✓ File.exists! returns false for a file that does not exist")?

Ok({})

cleanup_test_files! : [FilesNeedToExist, FilesMaybeExist] => Result {} _

cleanup_test_files! = |files_requirement|

Stdout.line!("\nCleaning up test files...")?

test_files = [

"test_bytes.txt",

"test_symlink.txt",

"test_write.json",

"test_multiline.txt",

"test_original_file.txt",

"test_link_to_original.txt",

"test_rename_new.txt",

]

delete_result = List.for_each_try!(

test_files,

|filename| File.delete!(filename)

)

when files_requirement is

FilesNeedToExist ->

delete_result ? FileDeletionFailed

FilesMaybeExist ->

Ok({})?

Stdout.line!("✓ Deleted all files.")

basic-cli/tests/file.roc at main · codegod100/basic-cli · GitHub

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