add some test for operators

test/test_operator.py

@@ -4,6 +4,43 @@
 from pymath.operator import op
 
 
+# Test de op.add
+
+def test_add_render_tex():
+    assert op.add.__tex__('1','2') == '1 + 2'
+    assert op.add.__tex__('1','-2') == '1 - 2'
+
+def test_add_render_txt():
+    assert op.add.__txt__('1','2') == '1 + 2'
+    assert op.add.__txt__('1','-2') == '1 - 2'
+
+# Test de op.sub
+
+def test_sub_render_tex():
+    assert op.sub.__tex__('1','2') == '1 - 2'
+    assert op.sub.__tex__('1','-2') == '1 - ( -2 )'
+
+def test_sub_render_txt():
+    assert op.sub.__txt__('1','2') == '1 - 2'
+    assert op.sub.__txt__('1','-2') == '1 - ( -2 )'
+
+# Test de op.sub1
+
+def test_sub1_render():
+    assert op.sub1.__tex__('1') == '- 1'
+    assert op.sub1.__tex__('-1') == '- ( -1 )'
+    assert op.sub1.__txt__('1') == '- 1'
+    assert op.sub1.__txt__('-1') == '- ( -1 )'
+
+# Test de op.mul
+def test_mul_render_tex():
+    assert op.mul.__tex__('1','2') == '1 \\times 2'
+    assert op.mul.__tex__('1','-2') == '1 \\times ( -2 )'
+
+def test_mul_render_txt():
+    assert op.mul.__txt__('1','2') == '1 * 2'
+    assert op.mul.__txt__('1','-2') == '1 * ( -2 )'
+
 def test_mul_is_visible():
     assert op.mul.is_visible(2,3) == True
     assert op.mul.is_visible(2,-3) == True
@@ -20,7 +57,25 @@ def test_mul_is_visible():
     assert op.mul.is_visible('(3x - 1)', '(2a + 1)') == False
     assert op.mul.is_visible(2, '(-2x + 1)(3x + 2)') == False
 
+# Test de op.div
+def test_div_render_tex():
+    assert op.div.__tex__('1','2') == '\\frac{ 1 }{ 2 }'
+    assert op.div.__tex__('1','-2') == '\\frac{ 1 }{ -2 }'
 
+def test_div_render_txt():
+    assert op.div.__txt__('1','2') == '1 / 2'
+    assert op.div.__txt__('1','-2') == '1 / ( -2 )'
+
+# Test de op.pw
+def test_pw_render_tex():
+    assert op.pw.__tex__('1','2') == '1^{  2 }'
+    assert op.pw.__tex__('1','-2') == '1^{-2}'
+    assert op.pw.__tex__('-1','2') == '( -1 )^{ 2 }'
+
+def test_pw_render_txt():
+    assert op.pw.__txt__('1','2') == '1 ^ 2'
+    assert op.pw.__txt__('1','-2') == '1 ^ ( -2 )'
+    assert op.pw.__txt__('-1','2') == '( -1 ) ^ 2 '