Ability to statically pass consentData (prebid#2636)

* Added static consentData to consentManagement config

* Added test for static cmpApi

* logError instead of logInfo

modules/consentManagement.js

@@ -17,14 +17,26 @@ const DEFAULT_ALLOW_AUCTION_WO_CONSENT = true;
 export let userCMP;
 export let consentTimeout;
 export let allowAuction;
+export let staticConsentData;
 
 let consentData;
 
 // add new CMPs here, with their dedicated lookup function
 const cmpCallMap = {
-  'iab': lookupIabConsent
+  'iab': lookupIabConsent,
+  'static': lookupStaticConsentData
 };
 
+/**
+ * This function reads the consent string from the config to obtain the consent information of the user.
+ * @param {function(string)} cmpSuccess acts as a success callback when the value is read from config; pass along consentObject (string) from CMP
+ * @param {function(string)} cmpError acts as an error callback while interacting with the config string; pass along an error message (string)
+ * @param {object} hookConfig contains module related variables (see comment in requestBidsHook function)
+ */
+function lookupStaticConsentData(cmpSuccess, cmpError, hookConfig) {
+  cmpSuccess(staticConsentData, hookConfig);
+}
+
 /**
  * This function handles interacting with an IAB compliant CMP to obtain the consent information of the user.
  * Given the async nature of the CMP's API, we pass in acting success/error callback functions to exit this function
@@ -348,7 +360,17 @@ export function setConfig(config) {
     allowAuction = DEFAULT_ALLOW_AUCTION_WO_CONSENT;
     utils.logInfo(`consentManagement config did not specify allowAuctionWithoutConsent.  Using system default setting (${DEFAULT_ALLOW_AUCTION_WO_CONSENT}).`);
   }
+
   utils.logInfo('consentManagement module has been activated...');
+
+  if (userCMP === 'static') {
+    if (utils.isPlainObject(config.consentData)) {
+      staticConsentData = config.consentData;
+      consentTimeout = 0;
+    } else {
+      utils.logError(`consentManagement config with cmpApi: 'static' did not specify consentData. No consents will be available to adapters.`);
+    }
+  }
   $$PREBID_GLOBAL$$.requestBids.addHook(requestBidsHook, 50);
 }
 config.getConfig('consentManagement', config => setConfig(config.consentManagement));