Issue18130: Test class idlelib.configSectionNameDialog.GetCfgSectionNameDialog.
Fix bug in existing human test and add instructions; fix two bugs in tested code; remove redundancies, add spaces, and change two internal method names. Add mock_tk with mocks for tkinter.Variable subclasses and tkinter.messagebox. Use mocks in test_config_name to unittest methods that are otherwise gui-free.
This commit is contained in:
Terry Jan Reedy
parent
964c25f1d9
commit
8d6834a28e
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@ -1,97 +1,100 @@
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"""
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Dialog that allows user to specify a new config file section name.
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Used to get new highlight theme and keybinding set names.
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The 'return value' for the dialog, used two placed in configDialog.py,
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is the .result attribute set in the Ok and Cancel methods.
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"""
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from Tkinter import *
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import tkMessageBox
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class GetCfgSectionNameDialog(Toplevel):
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def __init__(self,parent,title,message,usedNames):
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def __init__(self, parent, title, message, used_names):
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"""
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message - string, informational message to display
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usedNames - list, list of names already in use for validity check
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used_names - string collection, names already in use for validity check
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"""
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Toplevel.__init__(self, parent)
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self.configure(borderwidth=5)
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self.resizable(height=FALSE,width=FALSE)
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self.resizable(height=FALSE, width=FALSE)
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self.title(title)
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self.transient(parent)
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self.grab_set()
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self.protocol("WM_DELETE_WINDOW", self.Cancel)
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self.parent = parent
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self.message=message
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self.usedNames=usedNames
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self.result=''
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self.CreateWidgets()
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self.message = message
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self.used_names = used_names
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self.create_widgets()
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self.withdraw() #hide while setting geometry
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self.update_idletasks()
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#needs to be done here so that the winfo_reqwidth is valid
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self.messageInfo.config(width=self.frameMain.winfo_reqwidth())
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self.geometry("+%d+%d" %
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((parent.winfo_rootx()+((parent.winfo_width()/2)
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-(self.winfo_reqwidth()/2)),
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parent.winfo_rooty()+((parent.winfo_height()/2)
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-(self.winfo_reqheight()/2)) )) ) #centre dialog over parent
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self.geometry(
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"+%d+%d" % (
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parent.winfo_rootx() +
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(parent.winfo_width()/2 - self.winfo_reqwidth()/2),
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parent.winfo_rooty() +
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(parent.winfo_height()/2 - self.winfo_reqheight()/2)
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) ) #centre dialog over parent
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self.deiconify() #geometry set, unhide
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self.wait_window()
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def CreateWidgets(self):
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self.name=StringVar(self)
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self.fontSize=StringVar(self)
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self.frameMain = Frame(self,borderwidth=2,relief=SUNKEN)
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self.frameMain.pack(side=TOP,expand=TRUE,fill=BOTH)
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self.messageInfo=Message(self.frameMain,anchor=W,justify=LEFT,padx=5,pady=5,
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text=self.message)#,aspect=200)
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entryName=Entry(self.frameMain,textvariable=self.name,width=30)
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def create_widgets(self):
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self.name = StringVar(self.parent)
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self.fontSize = StringVar(self.parent)
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self.frameMain = Frame(self, borderwidth=2, relief=SUNKEN)
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self.frameMain.pack(side=TOP, expand=TRUE, fill=BOTH)
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self.messageInfo = Message(self.frameMain, anchor=W, justify=LEFT,
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padx=5, pady=5, text=self.message) #,aspect=200)
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entryName = Entry(self.frameMain, textvariable=self.name, width=30)
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entryName.focus_set()
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self.messageInfo.pack(padx=5,pady=5)#,expand=TRUE,fill=BOTH)
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entryName.pack(padx=5,pady=5)
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frameButtons=Frame(self)
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frameButtons.pack(side=BOTTOM,fill=X)
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self.buttonOk = Button(frameButtons,text='Ok',
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width=8,command=self.Ok)
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self.buttonOk.grid(row=0,column=0,padx=5,pady=5)
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self.buttonCancel = Button(frameButtons,text='Cancel',
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width=8,command=self.Cancel)
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self.buttonCancel.grid(row=0,column=1,padx=5,pady=5)
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self.messageInfo.pack(padx=5, pady=5) #, expand=TRUE, fill=BOTH)
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entryName.pack(padx=5, pady=5)
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frameButtons = Frame(self, pady=2)
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frameButtons.pack(side=BOTTOM)
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self.buttonOk = Button(frameButtons, text='Ok',
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width=8, command=self.Ok)
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self.buttonOk.pack(side=LEFT, padx=5)
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self.buttonCancel = Button(frameButtons, text='Cancel',
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width=8, command=self.Cancel)
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self.buttonCancel.pack(side=RIGHT, padx=5)
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def NameOk(self):
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#simple validity check for a sensible
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#ConfigParser file section name
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nameOk=1
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name=self.name.get()
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name.strip()
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def name_ok(self):
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''' After stripping entered name, check that it is a sensible
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ConfigParser file section name. Return it if it is, '' if not.
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'''
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name = self.name.get().strip()
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if not name: #no name specified
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tkMessageBox.showerror(title='Name Error',
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message='No name specified.', parent=self)
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nameOk=0
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elif len(name)>30: #name too long
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tkMessageBox.showerror(title='Name Error',
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message='Name too long. It should be no more than '+
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'30 characters.', parent=self)
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nameOk=0
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elif name in self.usedNames:
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name = ''
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elif name in self.used_names:
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tkMessageBox.showerror(title='Name Error',
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message='This name is already in use.', parent=self)
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nameOk=0
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return nameOk
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name = ''
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return name
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def Ok(self, event=None):
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if self.NameOk():
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self.result=self.name.get().strip()
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name = self.name_ok()
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if name:
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self.result = name
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self.destroy()
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def Cancel(self, event=None):
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self.result=''
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self.result = ''
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self.destroy()
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if __name__ == '__main__':
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#test the dialog
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root=Tk()
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import unittest
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unittest.main('idlelib.idle_test.test_config_name', verbosity=2, exit=False)
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# also human test the dialog
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root = Tk()
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def run():
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keySeq=''
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dlg=GetCfgSectionNameDialog(root,'Get Name',
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'The information here should need to be word wrapped. Test.')
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"After the text entered with [Ok] is stripped, <nothing>, "
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"'abc', or more that 30 chars are errors. "
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"Close with a valid entry (printed), [Cancel], or [X]",
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{'abc'})
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print dlg.result
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Button(root,text='Dialog',command=run).pack()
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Message(root, text='').pack() # will be needed for oher dialog tests
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Button(root, text='Click to begin dialog test', command=run).pack()
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root.mainloop()
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@ -0,0 +1,63 @@
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"""Classes that replace tkinter gui objects used by an object being tested.
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A gui object is anything with a master or parent paramenter, which is typically
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required in spite of what the doc strings say.
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"""
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class Var(object):
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"Use for String/Int/BooleanVar: incomplete"
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def __init__(self, master=None, value=None, name=None):
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self.master = master
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self.value = value
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self.name = name
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def set(self, value):
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self.value = value
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def get(self):
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return self.value
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class Mbox_func(object):
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"""Generic mock for messagebox functions. All have same call signature.
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Mbox instantiates once for each function. Tester uses attributes.
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"""
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def __init__(self):
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self.result = None # The return for all show funcs
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def __call__(self, title, message, *args, **kwds):
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# Save all args for possible examination by tester
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self.title = title
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self.message = message
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self.args = args
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self.kwds = kwds
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return self.result # Set by tester for ask functions
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class Mbox(object):
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"""Mock for tkinter.messagebox with an Mbox_func for each function.
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This module was 'tkMessageBox' in 2.x; hence the 'import as' in 3.x.
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Example usage in test_module.py for testing functios in module.py:
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---
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from idlelib.idle_test.mock_tk import Mbox
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import module
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orig_mbox = module.tkMessageBox
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showerror = Mbox.showerror # example, for attribute access in test methods
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class Test(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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module.tkMessageBox = Mbox
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@classmethod
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def tearDownClass(cls):
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module.tkMessageBox = orig_mbox
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---
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When tkMessageBox functions are the only gui making calls in a method,
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this replacement makes the method gui-free and unit-testable.
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For 'ask' functions, set func.result return before calling method.
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"""
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askokcancel = Mbox_func() # True or False
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askquestion = Mbox_func() # 'yes' or 'no'
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askretrycancel = Mbox_func() # True or False
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askyesno = Mbox_func() # True or False
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askyesnocancel = Mbox_func() # True, False, or None
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showerror = Mbox_func() # None
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showinfo = Mbox_func() # None
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showwarning = Mbox_func() # None
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"""Unit tests for idlelib.configSectionNameDialog"""
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import unittest
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from idlelib.idle_test.mock_tk import Var, Mbox
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from idlelib import configSectionNameDialog as name_dialog_module
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name_dialog = name_dialog_module.GetCfgSectionNameDialog
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class Dummy_name_dialog(object):
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# Mock for testing the following methods of name_dialog
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name_ok = name_dialog.name_ok.im_func
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Ok = name_dialog.Ok.im_func
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Cancel = name_dialog.Cancel.im_func
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# Attributes, constant or variable, needed for tests
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used_names = ['used']
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name = Var()
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result = None
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destroyed = False
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def destroy(self):
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self.destroyed = True
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# name_ok calls Mbox.showerror if name is not ok
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orig_mbox = name_dialog_module.tkMessageBox
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showerror = Mbox.showerror
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class TestConfigName(unittest.TestCase):
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dialog = Dummy_name_dialog()
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@classmethod
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def setUpClass(cls):
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name_dialog_module.tkMessageBox = Mbox
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@classmethod
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def tearDownClass(cls):
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name_dialog_module.tkMessageBox = orig_mbox
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def test_blank_name(self):
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self.dialog.name.set(' ')
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self.assertEqual(self.dialog.name_ok(), '')
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self.assertEqual(showerror.title, 'Name Error')
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self.assertIn('No', showerror.message)
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def test_used_name(self):
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self.dialog.name.set('used')
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self.assertEqual(self.dialog.name_ok(), '')
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self.assertEqual(showerror.title, 'Name Error')
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self.assertIn('use', showerror.message)
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def test_long_name(self):
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self.dialog.name.set('good'*8)
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self.assertEqual(self.dialog.name_ok(), '')
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self.assertEqual(showerror.title, 'Name Error')
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self.assertIn('too long', showerror.message)
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def test_good_name(self):
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self.dialog.name.set(' good ')
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showerror.title = 'No Error' # should not be called
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self.assertEqual(self.dialog.name_ok(), 'good')
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self.assertEqual(showerror.title, 'No Error')
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def test_ok(self):
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self.dialog.destroyed = False
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self.dialog.name.set('good')
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self.dialog.Ok()
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self.assertEqual(self.dialog.result, 'good')
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self.assertTrue(self.dialog.destroyed)
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def test_cancel(self):
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self.dialog.destroyed = False
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self.dialog.Cancel()
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self.assertEqual(self.dialog.result, '')
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self.assertTrue(self.dialog.destroyed)
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if __name__ == '__main__':
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unittest.main(verbosity=2, exit=False)
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