From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Sun, 8 Jan 2006 01:30:03 +0000 (+0000)
Subject: unit tests to test column/pk/fk exports on relational objects
X-Git-Tag: rel_0_1_0~161
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0e8fc7abc2daca43b9fafb1b81c7bc5e8f5b4295;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

unit tests to test column/pk/fk exports on relational objects
---

diff --git a/test/selectable.py b/test/selectable.py
new file mode 100755
index 0000000000..37b1f28eca
--- /dev/null
+++ b/test/selectable.py
@@ -0,0 +1,91 @@
+"""tests that various From objects properly export their columns, as well as useable primary keys
+and foreign keys.  Full relational algebra depends on every selectable unit behaving
+nicely with others.."""
+
+import testbase
+import unittest, sys, datetime
+
+
+db = testbase.db
+
+from sqlalchemy import *
+
+
+table = Table('table1', db, 
+    Column('col1', Integer, primary_key=True),
+    Column('col2', String(20)),
+    Column('col3', Integer),
+    redefine=True
+)
+
+table2 = Table('table2', db,
+    Column('col1', Integer, primary_key=True),
+    Column('col2', Integer, ForeignKey('table1.col1')),
+    Column('col3', String(20)),
+    redefine=True
+)
+
+class SelectableTest(testbase.AssertMixin):
+    def testtablealias(self):
+        a = table.alias('a')
+        
+        j = join(a, table2)
+        
+        criterion = a.c.col1 == table2.c.col2
+        print
+        print str(j)
+        self.assert_(criterion.compare(j.onclause))
+
+    def testjoin(self):
+        a = join(table, table2)
+        print str(a.select(use_labels=True))
+        # TODO - figure out what we're trying to do here
+        return
+        b = table2.alias('b')
+        j = join(a, b)
+        print str(j)
+        return
+        criterion = a.c.col1 == b.c.col2
+        print
+        print str(j)
+        self.assert_(criterion.compare(j.onclause))
+
+    def testselectalias(self):
+        a = table.select().alias('a')
+        print str(a.select())
+        j = join(a, table2)
+        
+        criterion = a.c.col1 == table2.c.col2
+        print
+        print str(j)
+        self.assert_(criterion.compare(j.onclause))
+
+    def testselectlabels(self):
+        a = table.select(use_labels=True)
+        print str(a.select())
+        j = join(a, table2)
+        
+        criterion = a.c.table1_col1 == table2.c.col2
+        print
+        print str(j)
+        self.assert_(criterion.compare(j.onclause))
+
+    def testcolumnlabels(self):
+        a = select([table.c.col1.label('acol1'), table.c.col2.label('acol2'), table.c.col3.label('acol3')])
+        print str(a)
+        print [c for c in a.columns]
+        j = join(a, table2)
+        
+    def testselectaliaslabels(self):
+        a = table2.select(use_labels=True).alias('a')
+        print str(a.select())
+        j = join(a, table)
+        
+        criterion =  table.c.col1 == a.c.table2_col2
+        print str(criterion)
+        print str(j.onclause)
+        self.assert_(criterion.compare(j.onclause))
+        
+if __name__ == "__main__":
+    testbase.main()
+    
\ No newline at end of file