From d9744cbcaeaa24095fed99f2714c5f3bdfdc8e19 Mon Sep 17 00:00:00 2001
From: Lafrite <lafrite@poneyworld.net>
Date: Tue, 21 Apr 2015 18:10:14 +0200
Subject: [PATCH] All tests pass :D

---
 pymath/abstract_polynom.py | 13 +++++++++++++
 pymath/explicable.py       | 12 ++++++++++++
 pymath/expression.py       | 22 +++++++++++-----------
 3 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/pymath/abstract_polynom.py b/pymath/abstract_polynom.py
index 9eb8894..bc2fcf6 100644
--- a/pymath/abstract_polynom.py
+++ b/pymath/abstract_polynom.py
@@ -307,6 +307,11 @@ class AbstractPolynom(Explicable):
         >>> Q = P.reduce()
         >>> Q
         < <class 'pymath.abstract_polynom.AbstractPolynom'> [3, 12, 6]>
+        >>> for i in Q.explain():
+        ...     print(i)
+        6 x^{  2 } + ( 3 + 4 + 5 ) x + 1 + 2
+        6 x^{  2 } + ( 7 + 5 ) x + 3
+        6 x^{  2 } + 12 x + 3
         >>> Q.steps
         [< <class 'pymath.abstract_polynom.AbstractPolynom'> [< <class 'pymath.expression.Expression'> [1, 2, '+'] >, < <class 'pymath.expression.Expression'> [3, 4, '+', 5, '+'] >, 6]>, < <class 'pymath.abstract_polynom.AbstractPolynom'> [3, < <class 'pymath.expression.Expression'> [7, 5, '+'] >, 6]>]
         """
@@ -580,6 +585,14 @@ class AbstractPolynom(Explicable):
     def __xor__(self, power):
         return self.__pow__(power)
 
+if __name__ == '__main__':
+    P = AbstractPolynom([[1,2],[3,4,5],6])
+    Q = P.reduce()
+    for i in Q.explain():
+        print(i)
+
+    #import doctest
+    #doctest.testmod()
 
 
 # -----------------------------
diff --git a/pymath/explicable.py b/pymath/explicable.py
index d764132..fb91efd 100644
--- a/pymath/explicable.py
+++ b/pymath/explicable.py
@@ -4,6 +4,9 @@
 from .render import txt, tex
 
 class Renderable(object):
+    """
+    A Renderable object is an object which can work with Render class. It means that it has to have attribute postfix_tokens.
+    """
     STR_RENDER = tex
     DEFAULT_RENDER = tex
 
@@ -60,6 +63,15 @@ class Renderable(object):
             def __exit__(self, type, value, traceback):
                 Renderable.set_render(self.old_render)
         return TmpRenderEnv()
+
+    def __eq__(self, other):
+        """ Two Renderable objects are the same if they have same postfix_tokens """
+        try:
+            return self.postfix_tokens == other.postfix_tokens
+        except AttributeError:
+            return False
+
+    
         
 class Explicable(Renderable):
 
diff --git a/pymath/expression.py b/pymath/expression.py
index 5d1e8d7..c44c2a1 100644
--- a/pymath/expression.py
+++ b/pymath/expression.py
@@ -350,11 +350,11 @@ def untest(exp):
 
 if __name__ == '__main__':
     #print('\n')
-    A = Expression("( -8 x + 8 ) ( -8 - ( -6 x ) )")
-    Ar = A.simplify()
+    #A = Expression("( -8 x + 8 ) ( -8 - ( -6 x ) )")
+    #Ar = A.simplify()
     #print("Ar.steps -> ", Ar.steps)
-    for i in Ar.explain():
-        print(i)
+    #for i in Ar.explain():
+    #    print(i)
     #print("------------")
     #for i in Ar.explain():
     #    print(i)
@@ -362,20 +362,20 @@ if __name__ == '__main__':
     #print(type(Ar))
     
 
-    print('\n-----------')
-    A = Expression("2 / 3 + 4 / 5")
-    Ar = A.simplify()
+    #print('\n-----------')
+    #A = Expression("2 / 3 + 4 / 5")
+    #Ar = A.simplify()
     #print("Ar.steps -> ", Ar.steps)
     #for i in Ar.steps:
     #    print(i)
     #print("------------")
-    for i in Ar.explain():
-        print(i)
+    #for i in Ar.explain():
+    #    print(i)
 
     #print(type(Ar))
 
-    #import doctest
-    #doctest.testmod()
+    import doctest
+    doctest.testmod()
 
 # -----------------------------
 # Reglages pour 'vim'