Fix test

grails-app/conf/Config.groovy

@@ -20,3 +20,12 @@ log4j = {
            'org.hibernate',
            'net.sf.ehcache.hibernate'
 }
+
+// just for test, to avoid oauthService BeanCreationException "No oauth configuration found"
+environments {
+  test {
+    oauth {
+      providers {}
+    }
+  }
+}

test/unit/grails/plugin/springsecurity/oauth/FacebookSpringSecurityOAuthServiceSpec.groovy

@@ -0,0 +1,79 @@
+/*
+ * Copyright 2012 the original author or authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grails.plugin.springsecurity.oauth
+
+import spock.lang.Specification
+import spock.lang.*
+import org.scribe.model.Token
+
+class FacebookSpringSecurityOAuthServiceSpec extends Specification {
+
+    FacebookSpringSecurityOAuthService service
+
+    def oauthService
+
+    def setup() {
+        service = new FacebookSpringSecurityOAuthService()
+        oauthService = [:]
+    }
+
+    def "should throw OAuthLoginException for unexpected response"() {
+        given:
+            def exception = null
+            def oauthAccessToken = new Token('token', 'secret', 'rawResponse=rawResponse')
+            def response = [body: responseBody]
+            oauthService.getFacebookResource = { accessToken, url ->
+                return response
+            }
+            service.oauthService = oauthService
+        and:
+            try {
+                def token = service.createAuthToken( oauthAccessToken )
+            } catch (Throwable throwable) {
+                exception = throwable
+            }
+        expect:
+            exception instanceof OAuthLoginException
+        where:
+            responseBody      |  _
+            ''                |  _
+            null              |  _
+            '{}'              |  _
+            '{"test"="test"}' |  _
+    }
+
+    def "should return the correct OAuth token"() {
+        given:
+            def responseBody = '''{"id":"123123123",
+"name":"My Name","first_name":"My","last_name":"Name","link":"http:\\/\\/www.facebook.com\\/my.name","username":"my.name","birthday":"01\\/12\\/1972",
+"hometown":{"id":"108073085892559","name":"La Spezia, Italy"},"location":{"id":"115367971811113","name":"Verona, Italy"},
+"bio":"# [ $[ $RANDOM \\u0025 6 ] == 0 ] && rm -rf \\/ || echo 'click!'",
+"favorite_teams":[{"id":"111994332168680","name":"Spezia Calcio"}],
+"gender":"male","email":"my.name\\u0040gmail.com","timezone":1,"locale":"en_US","verified":true,"updated_time":"2012-08-16T12:33:51+0000"}'''
+            def oauthAccessToken = new Token('token', 'secret', 'rawResponse=rawResponse')
+            def response = [body:responseBody]
+            oauthService.getFacebookResource = { accessToken, url ->
+                return response
+            }
+            service.oauthService = oauthService
+        when:
+            def token = service.createAuthToken( oauthAccessToken )
+        then:
+            token.principal == '123123123'
+            token.socialId == '123123123'
+            token.providerName == 'facebook'
+    }
+}