Complete the policy tests with provider and replacement tests

tests/Composer/Test/DependencyResolver/DefaultPolicyTest.php

@@ -98,4 +98,43 @@ class DefaultPolicyTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals($expected, $selected);
     }
+
+    public function testSelectAllProviders()
+    {
+        $this->markTestIncomplete();
+
+        $this->repo->addPackage($packageA = new MemoryPackage('A', '1.0'));
+        $this->repo->addPackage($packageB = new MemoryPackage('B', '2.0'));
+
+        $packageA->setProvides(array(new Link('A', 'X', new VersionConstraint('==', '1.0'), 'provides')));
+        $packageB->setProvides(array(new Link('B', 'X', new VersionConstraint('==', '1.0'), 'provides')));
+
+        $this->pool->addRepository($this->repo);
+
+        $literals = array(new Literal($packageA, true), new Literal($packageB, true));
+        $expected = $literals;
+
+        $selected = $this->policy->selectPreferedPackages($this->pool, $this->repoInstalled, $literals);
+
+        $this->assertEquals($expected, $selected);
+    }
+
+    public function testSelectNonReplacingFromSameRepo()
+    {
+        $this->markTestIncomplete();
+
+        $this->repo->addPackage($packageA = new MemoryPackage('A', '1.0'));
+        $this->repo->addPackage($packageB = new MemoryPackage('B', '2.0'));
+
+        $packageB->setReplaces(array(new Link('B', 'A', new VersionConstraint('==', '1.0'), 'replaces')));
+
+        $this->pool->addRepository($this->repo);
+
+        $literals = array(new Literal($packageA, true), new Literal($packageB, true));
+        $expected = array(new Literal($packageA, true));
+
+        $selected = $this->policy->selectPreferedPackages($this->pool, $this->repoInstalled, $literals);
+
+        $this->assertEquals($expected, $selected);
+    }
 }