Tests for current behavior, related to codegram#84.

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2015-08-15 16:01:39 -0400 using RuboCop version 0.33.0.
+# on 2015-08-15 17:01:12 -0400 using RuboCop version 0.33.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -11,7 +11,7 @@
 Metrics/ClassLength:
   Max: 103
 
-# Offense count: 80
+# Offense count: 85
 # Configuration parameters: AllowURI, URISchemes.
 Metrics/LineLength:
   Max: 142
@@ -24,7 +24,7 @@ Metrics/MethodLength:
 # Offense count: 3
 # Configuration parameters: CountComments.
 Metrics/ModuleLength:
-  Max: 238
+  Max: 258
 
 # Offense count: 1
 Style/AsciiComments:

test/hyperclient/link_test.rb

@@ -75,6 +75,21 @@ module Hyperclient
           link._expand._url.must_equal '/orders'
           link._url.must_equal '/orders'
         end
+
+        it 'does not expand unknown variables' do
+          link = Link.new('key', { 'href' => '/orders{?id}', 'templated' => true }, entry_point)
+          link._expand(unknown: '1')._url.must_equal '/orders'
+        end
+
+        it 'only expands known variables' do
+          link = Link.new('key', { 'href' => '/orders{?id}', 'templated' => true }, entry_point)
+          link._expand(unknown: '1', id: '2')._url.must_equal '/orders?id=2'
+        end
+
+        it 'only expands templated links' do
+          link = Link.new('key', { 'href' => '/orders{?id}', 'templated' => false }, entry_point)
+          link._expand(id: '1')._url.must_equal '/orders{?id}'
+        end
       end
     end
 
@@ -91,6 +106,18 @@ module Hyperclient
         link._url.must_equal '/orders?id=1'
       end
 
+      it 'does not expand an uri template with unknown variables' do
+        link = Link.new('key', { 'href' => '/orders{?id}', 'templated' => true }, entry_point, unknown: 1)
+
+        link._url.must_equal '/orders'
+      end
+
+      it 'only expands known variables in a uri template' do
+        link = Link.new('key', { 'href' => '/orders{?id}', 'templated' => true }, entry_point, unknown: 1, id: 2)
+
+        link._url.must_equal '/orders?id=2'
+      end
+
       it 'returns the link when no uri template' do
         link = Link.new('key', { 'href' => '/orders' }, entry_point)
         link._url.must_equal '/orders'