Class testing

Given repository has two files:

• classes.py - module with Document, Cursor, Character class
• test_classes.py - module with class TestClasses

Document

Has following methods and properties:

• "init" - inits document
• "insert" - insert character to document
• "delete" - delete character
• "save" - saves document with name "test.txt"
• "forward" - sets cursor one step forward
• "back" - sets cursor one step backward
• "string" - returns document as string

Cursor

Has following methods and properties:

• "init" - inits cursor
• "forward" - sets cursor one step forward
• "back" - sets cursor one step backward
• "home" - sets cursor home (start of the line)
• "end" - sets cursor at the end (end of current line)

Character

Has following methods and properties:

• "init" - inits character
• "str" - represents character as string

Exeptions

• NotADocument - This exeption ocures when we pass not a document to cursor
• UnvalidCharacter - This exeption ocures when unvalid character is passed in document
• EmptyDocDeleting - This exeption ocures we try to delete character from empty document

Example of usage

document.insert("h")
document.insert("e")
document.insert(Character('l', bold=True, italic=True))
document.insert(Character('l', bold=True))
document.insert("o")
print(document.string)

This will result in as "hello"

To run tests type in console:

python test_classes.py