Extract a common module/library/header.

This is Refactoring / code cleanup.

See:

* https://refactoring.com/catalog/extractMethod.html

* https://en.wikipedia.org/wiki/Code_refactoring

* https://www.refactoring.com/

* https://www.joelonsoftware.com/2002/01/23/rub-a-dub-dub/

Some small optimisations may have slipped in as well.

tests/lib/pysol_tests/common_mocks1.py

@@ -0,0 +1,62 @@
+#! /usr/bin/env python MockItem
+# -*- coding: utf-8 -*-
+# vim:fenc=utf-8
+#
+# Copyright © 2018 Shlomi Fish <shlomif@cpan.org>
+#
+# Distributed under terms of the MIT license.
+
+from pysollib.acard import AbstractCard
+import pysollib.stack
+
+"""
+
+"""
+
+
+class MockItem:
+    def __init__(self):
+        pass
+
+    def tkraise(self):
+        return
+
+    def addtag(self, nouse):
+        return
+
+
+class MockCanvas:
+    def __init__(self):
+        self.xmargin = self.ymargin = 50
+
+
+class MockImages:
+    def __init__(self):
+        self.CARDW = self.CARDH = self.CARD_YOFFSET = 50
+
+
+class MockOpt:
+    def __init__(self):
+        self.randomize_place = False
+
+
+class MockApp:
+    def __init__(self):
+        self.images = MockImages()
+        self.opt = MockOpt()
+
+
+class MockTalon:
+    def __init__(self, g):
+        self.cards = [
+            AbstractCard(1000+r*100+s*10, 0, s, r, g)
+            for s in range(4) for r in range(13)]
+        for c in self.cards:
+            c.item = MockItem()
+
+
+def _empty_override(*args):
+    return True
+
+
+pysollib.stack.MfxCanvasGroup = _empty_override

tests/lib/pysol_tests/import_file1.py

@@ -1,50 +1,9 @@
 # Written by Shlomi Fish, under the MIT Expat License.
 
 import unittest
-from pysollib.acard import AbstractCard
 from pysollib.hint import FreeCellSolver_Hint, PySolHintLayoutImportError
 import pysollib.stack
-
+from pysol_tests.common_mocks1 import MockApp, MockCanvas, MockTalon
-
-class MockItem:
-    def __init__(self):
-        pass
-
-    def tkraise(self):
-        return
-
-    def addtag(self, nouse):
-        return
-
-
-class MockCanvas:
-    def __init__(self):
-        self.xmargin = self.ymargin = 50
-
-
-class MockImages:
-    def __init__(self):
-        self.CARDW = self.CARDH = self.CARD_YOFFSET = 50
-
-
-class MockOpt:
-    def __init__(self):
-        self.randomize_place = False
-
-
-class MockApp:
-    def __init__(self):
-        self.images = MockImages()
-        self.opt = MockOpt()
-
-
-class MockTalon:
-    def __init__(self, g):
-        self.cards = [
-            AbstractCard(1000+r*100+s*10, 0, s, r, g)
-            for s in range(4) for r in range(13)]
-        for c in self.cards:
-            c.item = MockItem()
 
 
 class MockGame:
@@ -63,13 +22,6 @@ class MockGame:
         self.preview = 0
 
 
-def _empty_override(*args):
-    return True
-
-
-pysollib.stack.MfxCanvasGroup = _empty_override
-
-
 class Mock_S_Game:
     def __init__(self):
         self.s = MockGame()

tests/lib/pysol_tests/scorpion_canMove.py

@@ -4,47 +4,7 @@ import unittest
 from pysollib.acard import AbstractCard
 import pysollib.stack
 from pysollib.games.spider import Scorpion_RowStack
-
+from pysol_tests.common_mocks1 import MockApp, MockCanvas, MockItem, MockTalon
-
-class MockItem:
-    def __init__(self):
-        pass
-
-    def tkraise(self):
-        return
-
-    def addtag(self, nouse):
-        return
-
-
-class MockCanvas:
-    def __init__(self):
-        self.xmargin = self.ymargin = 50
-
-
-class MockImages:
-    def __init__(self):
-        self.CARDW = self.CARDH = self.CARD_YOFFSET = 50
-
-
-class MockOpt:
-    def __init__(self):
-        self.randomize_place = False
-
-
-class MockApp:
-    def __init__(self):
-        self.images = MockImages()
-        self.opt = MockOpt()
-
-
-class MockTalon:
-    def __init__(self, g):
-        self.cards = [
-            AbstractCard(1000+r*100+s*10, 0, s, r, g)
-            for s in range(4) for r in range(13)]
-        for c in self.cards:
-            c.item = MockItem()
 
 
 class MockGame:
@@ -64,13 +24,6 @@ class MockGame:
         self.preview = 0
 
 
-def _empty_override(*args):
-    return True
-
-
-pysollib.stack.MfxCanvasGroup = _empty_override
-
-
 class Mock_S_Game:
     def __init__(self):
         self.s = MockGame()