mongrations_test.rb in leifcr-mongrations-0.1.7

- old
+ new
@@ -1,8 +1,61 @@
 require 'test_helper'
 
 class MongrationsTest < ActiveSupport::TestCase
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
+  context "A valid MongoMapper connection" do
+    setup do
+      @path = File.join("test", "mongrations")
+      @version = "20101125020919"
+    end
+
+    context "with a valid database" do
+      context "with a pending migration" do
+        should "migrate up to a given version" do
+          Widget.create(:name => "Sparkling Wizzles", :price => 100)
+          Widget.first.price.should == 100
+          Mongrations::Migrator.run(:up, @path, @version)
+          Widget.first.price.should == 200
+        end
+
+        should "run all pending migrations" do
+
+          Widget.create(:name => "Sparkling Wizzles", :price => 100)
+          Widget.first.price.should == 100
+          Mongrations::Migrator.migrate(@path, nil)
+          Widget.first.price.should == 200
+        end
+      end
+
+      should "run a migration:down" do
+        Widget.create(:name => "Sparkling Wizzles", :price => 100)
+        Widget.first.price.should == 100
+        Mongrations::Migrator.migrate(@path, nil)
+        Widget.first.price.should == 200
+        Mongrations::Migrator.run(:down, @path, @version)
+        Widget.first.price.should == 100
+      end
+
+      should "run a migration rollback" do
+        Widget.create(:name => "Sparkling Wizzles", :price => 100)
+        Widget.first.price.should == 100
+        Mongrations::Migrator.migrate(@path, nil)
+        Widget.first.price.should == 200
+        Mongrations::Migrator.rollback(@path, 1)
+        Widget.first.price.should == 100
+      end
+
+      should "not run a migration more than once" do
+        Widget.create(:name => "Sparkling Wizzles", :price => 100)
+        Widget.first.price.should == 100
+        Mongrations::Migrator.migrate(@path, nil)
+        Widget.first.price.should == 200
+        Mongrations::Migrator.migrate(@path, nil)
+        Widget.first.price.should == 200
+      end
+    end
+
+    teardown do
+      # Not gonna remove it. For now.
+      # MongoMapper.connection.drop_database "mongrations_test"
+    end
   end
-end
+end
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