mirror of https://github.com/python/cpython
bpo-1612262: IDLE: Class Browser shows nested functions, classes (#2573)
Original patches for code and tests by Guilherme Polo and Cheryl Sabella, respectively.
This commit is contained in:
Cheryl Sabella
Terry Jan Reedy
parent
0a1ff24acf
commit
058de11360
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@ -19,14 +19,49 @@ from idlelib import pyshell
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from idlelib.tree import TreeNode, TreeItem, ScrolledCanvas
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from idlelib.windows import ListedToplevel
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file_open = None # Method...Item and Class...Item use this.
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# Normally pyshell.flist.open, but there is no pyshell.flist for htest.
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def transform_children(child_dict, modname=None):
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"""Transform a child dictionary to an ordered sequence of objects.
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The dictionary maps names to pyclbr information objects.
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Filter out imported objects.
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Augment class names with bases.
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Sort objects by line number.
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The current tree only calls this once per child_dic as it saves
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TreeItems once created. A future tree and tests might violate this,
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so a check prevents multiple in-place augmentations.
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"""
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obs = [] # Use list since values should already be sorted.
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for key, obj in child_dict.items():
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if modname is None or obj.module == modname:
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if hasattr(obj, 'super') and obj.super and obj.name == key:
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# If obj.name != key, it has already been suffixed.
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supers = []
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for sup in obj.super:
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if type(sup) is type(''):
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sname = sup
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else:
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sname = sup.name
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if sup.module != obj.module:
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sname = f'{sup.module}.{sname}'
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supers.append(sname)
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obj.name += '({})'.format(', '.join(supers))
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obs.append(obj)
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return sorted(obs, key=lambda o: o.lineno)
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class ClassBrowser:
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"""Browse module classes and functions in IDLE.
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"""
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# This class is the base class for pathbrowser.PathBrowser.
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# Init and close are inherited, other methods are overriden.
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def __init__(self, flist, name, path, _htest=False):
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def __init__(self, flist, name, path, _htest=False, _utest=False):
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# XXX This API should change, if the file doesn't end in ".py"
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# XXX the code here is bogus!
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"""Create a window for browsing a module's structure.
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@ -47,11 +82,12 @@ class ClassBrowser:
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the tree and subsequently in the children.
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"""
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global file_open
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if not _htest:
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if not (_htest or _utest):
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file_open = pyshell.flist.open
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self.name = name
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self.file = os.path.join(path[0], self.name + ".py")
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self._htest = _htest
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self._utest = _utest
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self.init(flist)
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def close(self, event=None):
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@ -80,8 +116,9 @@ class ClassBrowser:
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sc.frame.pack(expand=1, fill="both")
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item = self.rootnode()
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self.node = node = TreeNode(sc.canvas, None, item)
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node.update()
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node.expand()
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if not self._utest:
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node.update()
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node.expand()
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def settitle(self):
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"Set the window title."
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@ -92,6 +129,7 @@ class ClassBrowser:
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"Return a ModuleBrowserTreeItem as the root of the tree."
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return ModuleBrowserTreeItem(self.file)
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class ModuleBrowserTreeItem(TreeItem):
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"""Browser tree for Python module.
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@ -115,16 +153,8 @@ class ModuleBrowserTreeItem(TreeItem):
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return "python"
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def GetSubList(self):
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"""Return the list of ClassBrowserTreeItem items.
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Each item returned from listclasses is the first level of
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classes/functions within the module.
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"""
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sublist = []
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for name in self.listclasses():
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item = ClassBrowserTreeItem(name, self.classes, self.file)
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sublist.append(item)
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return sublist
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"Return ChildBrowserTreeItems for children."
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return [ChildBrowserTreeItem(obj) for obj in self.listchildren()]
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def OnDoubleClick(self):
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"Open a module in an editor window when double clicked."
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@ -132,89 +162,44 @@ class ModuleBrowserTreeItem(TreeItem):
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return
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if not os.path.exists(self.file):
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return
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pyshell.flist.open(self.file)
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file_open(self.file)
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def IsExpandable(self):
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"Return True if Python (.py) file."
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return os.path.normcase(self.file[-3:]) == ".py"
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def listclasses(self):
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"""Return list of classes and functions in the module.
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The dictionary output from pyclbr is re-written as a
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list of tuples in the form (lineno, name) and
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then sorted so that the classes and functions are
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processed in line number order. The returned list only
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contains the name and not the line number. An instance
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variable self.classes contains the pyclbr dictionary values,
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which are instances of Class and Function.
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"""
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def listchildren(self):
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"Return sequenced classes and functions in the module."
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dir, file = os.path.split(self.file)
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name, ext = os.path.splitext(file)
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if os.path.normcase(ext) != ".py":
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return []
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try:
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dict = pyclbr.readmodule_ex(name, [dir] + sys.path)
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tree = pyclbr.readmodule_ex(name, [dir] + sys.path)
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except ImportError:
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return []
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items = []
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self.classes = {}
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for key, cl in dict.items():
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if cl.module == name:
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s = key
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if hasattr(cl, 'super') and cl.super:
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supers = []
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for sup in cl.super:
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if type(sup) is type(''):
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sname = sup
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else:
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sname = sup.name
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if sup.module != cl.module:
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sname = "%s.%s" % (sup.module, sname)
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supers.append(sname)
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s = s + "(%s)" % ", ".join(supers)
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items.append((cl.lineno, s))
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self.classes[s] = cl
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items.sort()
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list = []
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for item, s in items:
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list.append(s)
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return list
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return transform_children(tree, name)
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class ClassBrowserTreeItem(TreeItem):
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"""Browser tree for classes within a module.
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class ChildBrowserTreeItem(TreeItem):
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"""Browser tree for child nodes within the module.
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Uses TreeItem as the basis for the structure of the tree.
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"""
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def __init__(self, name, classes, file):
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"""Create a TreeItem for the class/function.
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Args:
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name: Name of the class/function.
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classes: Dictonary of Class/Function instances from pyclbr.
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file: Full path and module name.
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Instance variables:
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self.cl: Class/Function instance for the class/function name.
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self.isfunction: True if self.cl is a Function.
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"""
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self.name = name
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# XXX - Does classes need to be an instance variable?
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self.classes = classes
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self.file = file
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try:
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self.cl = self.classes[self.name]
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except (IndexError, KeyError):
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self.cl = None
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self.isfunction = isinstance(self.cl, pyclbr.Function)
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def __init__(self, obj):
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"Create a TreeItem for a pyclbr class/function object."
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self.obj = obj
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self.name = obj.name
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self.isfunction = isinstance(obj, pyclbr.Function)
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def GetText(self):
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"Return the name of the function/class to display."
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name = self.name
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if self.isfunction:
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return "def " + self.name + "(...)"
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return "def " + name + "(...)"
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else:
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return "class " + self.name
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return "class " + name
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def GetIconName(self):
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"Return the name of the icon to display."
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@ -224,95 +209,34 @@ class ClassBrowserTreeItem(TreeItem):
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return "folder"
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def IsExpandable(self):
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"Return True if this class has methods."
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if self.cl:
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try:
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return not not self.cl.methods
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except AttributeError:
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return False
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return None
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"Return True if self.obj has nested objects."
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return self.obj.children != {}
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def GetSubList(self):
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"""Return Class methods as a list of MethodBrowserTreeItem items.
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Each item is a method within the class.
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"""
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if not self.cl:
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return []
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sublist = []
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for name in self.listmethods():
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item = MethodBrowserTreeItem(name, self.cl, self.file)
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sublist.append(item)
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return sublist
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"Return ChildBrowserTreeItems for children."
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return [ChildBrowserTreeItem(obj)
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for obj in transform_children(self.obj.children)]
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def OnDoubleClick(self):
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"Open module with file_open and position to lineno, if it exists."
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if not os.path.exists(self.file):
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return
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edit = file_open(self.file)
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if hasattr(self.cl, 'lineno'):
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lineno = self.cl.lineno
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edit.gotoline(lineno)
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"Open module with file_open and position to lineno."
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try:
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edit = file_open(self.obj.file)
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edit.gotoline(self.obj.lineno)
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except (OSError, AttributeError):
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pass
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def listmethods(self):
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"Return list of methods within a class sorted by lineno."
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if not self.cl:
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return []
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items = []
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for name, lineno in self.cl.methods.items():
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items.append((lineno, name))
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items.sort()
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list = []
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for item, name in items:
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list.append(name)
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return list
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class MethodBrowserTreeItem(TreeItem):
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"""Browser tree for methods within a class.
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Uses TreeItem as the basis for the structure of the tree.
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"""
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def __init__(self, name, cl, file):
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"""Create a TreeItem for the methods.
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Args:
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name: Name of the class/function.
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cl: pyclbr.Class instance for name.
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file: Full path and module name.
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"""
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self.name = name
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self.cl = cl
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self.file = file
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def GetText(self):
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"Return the method name to display."
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return "def " + self.name + "(...)"
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def GetIconName(self):
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"Return the name of the icon to display."
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return "python"
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def IsExpandable(self):
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"Return False as there are no tree items after methods."
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return False
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def OnDoubleClick(self):
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"Open module with file_open and position at the method start."
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if not os.path.exists(self.file):
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return
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edit = file_open(self.file)
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edit.gotoline(self.cl.methods[self.name])
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def _class_browser(parent): # htest #
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try:
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file = sys.argv[1] # If pass file on command line
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# If this succeeds, unittest will fail.
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except IndexError:
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file = __file__
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except NameError:
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file = sys.argv[0]
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if sys.argv[1:]:
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file = sys.argv[1]
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else:
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file = sys.argv[0]
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# Add objects for htest
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class Nested_in_func(TreeNode):
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def nested_in_class(): pass
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def closure():
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class Nested_in_closure: pass
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dir, file = os.path.split(file)
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name = os.path.splitext(file)[0]
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flist = pyshell.PyShellFileList(parent)
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@ -321,5 +245,7 @@ def _class_browser(parent): # htest #
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ClassBrowser(flist, name, [dir], _htest=True)
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if __name__ == "__main__":
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from unittest import main
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main('idlelib.idle_test.test_browser', verbosity=2, exit=False)
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from idlelib.idle_test.htest import run
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run(_class_browser)
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@ -0,0 +1,242 @@
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""" Test idlelib.browser.
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Coverage: 88%
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(Higher, because should exclude 3 lines that .coveragerc won't exclude.)
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"""
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import os.path
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import unittest
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import pyclbr
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from idlelib import browser, filelist
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from idlelib.tree import TreeNode
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from test.support import requires
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from unittest import mock
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from tkinter import Tk
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from idlelib.idle_test.mock_idle import Func
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from collections import deque
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class ClassBrowserTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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requires('gui')
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cls.root = Tk()
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cls.root.withdraw()
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cls.flist = filelist.FileList(cls.root)
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cls.file = __file__
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cls.path = os.path.dirname(cls.file)
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cls.module = os.path.basename(cls.file).rstrip('.py')
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cls.cb = browser.ClassBrowser(cls.flist, cls.module, [cls.path], _utest=True)
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@classmethod
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def tearDownClass(cls):
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cls.cb.close()
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cls.root.destroy()
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del cls.root, cls.flist, cls.cb
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def test_init(self):
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cb = self.cb
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eq = self.assertEqual
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eq(cb.name, self.module)
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eq(cb.file, self.file)
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eq(cb.flist, self.flist)
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eq(pyclbr._modules, {})
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self.assertIsInstance(cb.node, TreeNode)
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def test_settitle(self):
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cb = self.cb
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self.assertIn(self.module, cb.top.title())
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self.assertEqual(cb.top.iconname(), 'Class Browser')
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def test_rootnode(self):
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cb = self.cb
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rn = cb.rootnode()
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self.assertIsInstance(rn, browser.ModuleBrowserTreeItem)
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def test_close(self):
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cb = self.cb
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cb.top.destroy = Func()
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cb.node.destroy = Func()
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cb.close()
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self.assertTrue(cb.top.destroy.called)
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self.assertTrue(cb.node.destroy.called)
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del cb.top.destroy, cb.node.destroy
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# Same nested tree creation as in test_pyclbr.py except for super on C0.
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mb = pyclbr
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module, fname = 'test', 'test.py'
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f0 = mb.Function(module, 'f0', fname, 1)
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f1 = mb._nest_function(f0, 'f1', 2)
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f2 = mb._nest_function(f1, 'f2', 3)
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c1 = mb._nest_class(f0, 'c1', 5)
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C0 = mb.Class(module, 'C0', ['base'], fname, 6)
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F1 = mb._nest_function(C0, 'F1', 8)
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C1 = mb._nest_class(C0, 'C1', 11, [''])
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C2 = mb._nest_class(C1, 'C2', 12)
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F3 = mb._nest_function(C2, 'F3', 14)
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mock_pyclbr_tree = {'f0': f0, 'C0': C0}
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# transform_children(mock_pyclbr_tree, 'test') mutates C0.name.
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class TransformChildrenTest(unittest.TestCase):
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def test_transform_children(self):
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eq = self.assertEqual
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# Parameter matches tree module.
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tcl = list(browser.transform_children(mock_pyclbr_tree, 'test'))
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eq(tcl[0], f0)
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eq(tcl[1], C0)
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eq(tcl[1].name, 'C0(base)')
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# Check that second call does not add second '(base)' suffix.
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tcl = list(browser.transform_children(mock_pyclbr_tree, 'test'))
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eq(tcl[1].name, 'C0(base)')
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# Nothing to traverse if parameter name isn't same as tree module.
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tn = browser.transform_children(mock_pyclbr_tree, 'different name')
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self.assertEqual(list(tn), [])
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# No name parameter.
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tn = browser.transform_children({'f1': f1, 'c1': c1})
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self.assertEqual(list(tn), [f1, c1])
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class ModuleBrowserTreeItemTest(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.mbt = browser.ModuleBrowserTreeItem(fname)
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def test_init(self):
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self.assertEqual(self.mbt.file, fname)
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def test_gettext(self):
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self.assertEqual(self.mbt.GetText(), fname)
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def test_geticonname(self):
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self.assertEqual(self.mbt.GetIconName(), 'python')
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def test_isexpandable(self):
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self.assertTrue(self.mbt.IsExpandable())
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def test_listchildren(self):
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save_rex = browser.pyclbr.readmodule_ex
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save_tc = browser.transform_children
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browser.pyclbr.readmodule_ex = Func(result=mock_pyclbr_tree)
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browser.transform_children = Func(result=[f0, C0])
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try:
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self.assertEqual(self.mbt.listchildren(), [f0, C0])
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finally:
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browser.pyclbr.readmodule_ex = save_rex
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browser.transform_children = save_tc
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def test_getsublist(self):
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mbt = self.mbt
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mbt.listchildren = Func(result=[f0, C0])
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sub0, sub1 = mbt.GetSubList()
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del mbt.listchildren
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self.assertIsInstance(sub0, browser.ChildBrowserTreeItem)
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self.assertIsInstance(sub1, browser.ChildBrowserTreeItem)
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self.assertEqual(sub0.name, 'f0')
|
||||
self.assertEqual(sub1.name, 'C0')
|
||||
|
||||
|
||||
def test_ondoubleclick(self):
|
||||
mbt = self.mbt
|
||||
fopen = browser.file_open = mock.Mock()
|
||||
|
||||
with mock.patch('os.path.exists', return_value=False):
|
||||
mbt.OnDoubleClick()
|
||||
fopen.assert_not_called()
|
||||
|
||||
with mock.patch('os.path.exists', return_value=True):
|
||||
mbt.OnDoubleClick()
|
||||
fopen.assert_called()
|
||||
fopen.called_with(fname)
|
||||
|
||||
del browser.file_open
|
||||
|
||||
|
||||
class ChildBrowserTreeItemTest(unittest.TestCase):
|
||||
|
||||
@classmethod
|
||||
def setUpClass(cls):
|
||||
CBT = browser.ChildBrowserTreeItem
|
||||
cls.cbt_f1 = CBT(f1)
|
||||
cls.cbt_C1 = CBT(C1)
|
||||
cls.cbt_F1 = CBT(F1)
|
||||
|
||||
@classmethod
|
||||
def tearDownClass(cls):
|
||||
del cls.cbt_C1, cls.cbt_f1, cls.cbt_F1
|
||||
|
||||
def test_init(self):
|
||||
eq = self.assertEqual
|
||||
eq(self.cbt_C1.name, 'C1')
|
||||
self.assertFalse(self.cbt_C1.isfunction)
|
||||
eq(self.cbt_f1.name, 'f1')
|
||||
self.assertTrue(self.cbt_f1.isfunction)
|
||||
|
||||
def test_gettext(self):
|
||||
self.assertEqual(self.cbt_C1.GetText(), 'class C1')
|
||||
self.assertEqual(self.cbt_f1.GetText(), 'def f1(...)')
|
||||
|
||||
def test_geticonname(self):
|
||||
self.assertEqual(self.cbt_C1.GetIconName(), 'folder')
|
||||
self.assertEqual(self.cbt_f1.GetIconName(), 'python')
|
||||
|
||||
def test_isexpandable(self):
|
||||
self.assertTrue(self.cbt_C1.IsExpandable())
|
||||
self.assertTrue(self.cbt_f1.IsExpandable())
|
||||
self.assertFalse(self.cbt_F1.IsExpandable())
|
||||
|
||||
def test_getsublist(self):
|
||||
eq = self.assertEqual
|
||||
CBT = browser.ChildBrowserTreeItem
|
||||
|
||||
f1sublist = self.cbt_f1.GetSubList()
|
||||
self.assertIsInstance(f1sublist[0], CBT)
|
||||
eq(len(f1sublist), 1)
|
||||
eq(f1sublist[0].name, 'f2')
|
||||
|
||||
eq(self.cbt_F1.GetSubList(), [])
|
||||
|
||||
def test_ondoubleclick(self):
|
||||
fopen = browser.file_open = mock.Mock()
|
||||
goto = fopen.return_value.gotoline = mock.Mock()
|
||||
self.cbt_F1.OnDoubleClick()
|
||||
fopen.assert_called()
|
||||
goto.assert_called()
|
||||
goto.assert_called_with(self.cbt_F1.obj.lineno)
|
||||
del browser.file_open
|
||||
# Failure test would have to raise OSError or AttributeError.
|
||||
|
||||
|
||||
class NestedChildrenTest(unittest.TestCase):
|
||||
"Test that all the nodes in a nested tree are added to the BrowserTree."
|
||||
|
||||
def test_nested(self):
|
||||
queue = deque()
|
||||
actual_names = []
|
||||
# The tree items are processed in breadth first order.
|
||||
# Verify that processing each sublist hits every node and
|
||||
# in the right order.
|
||||
expected_names = ['f0', 'C0', # This is run before transform test.
|
||||
'f1', 'c1', 'F1', 'C1()',
|
||||
'f2', 'C2',
|
||||
'F3']
|
||||
CBT = browser.ChildBrowserTreeItem
|
||||
queue.extend((CBT(f0), CBT(C0)))
|
||||
while queue:
|
||||
cb = queue.popleft()
|
||||
sublist = cb.GetSubList()
|
||||
queue.extend(sublist)
|
||||
self.assertIn(cb.name, cb.GetText())
|
||||
self.assertIn(cb.GetIconName(), ('python', 'folder'))
|
||||
self.assertIs(cb.IsExpandable(), sublist != [])
|
||||
actual_names.append(cb.name)
|
||||
self.assertEqual(actual_names, expected_names)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main(verbosity=2)
|
||||
|
|
@ -9,11 +9,12 @@ from idlelib.tree import TreeItem
|
|||
|
||||
class PathBrowser(ClassBrowser):
|
||||
|
||||
def __init__(self, flist, _htest=False):
|
||||
def __init__(self, flist, _htest=False, _utest=False):
|
||||
"""
|
||||
_htest - bool, change box location when running htest
|
||||
"""
|
||||
self._htest = _htest
|
||||
self._utest = _utest
|
||||
self.init(flist)
|
||||
|
||||
def settitle(self):
|
||||
|
|
|
|||
|
|
@ -0,0 +1,3 @@
|
|||
IDLE module browser now shows nested classes and functions.
|
||||
Original patches for code and tests by Guilherme Polo and
|
||||
Cheryl Sabella, respectively.
|
||||
Loading…
Reference in New Issue