more requested changes

adapters/tappx/tappx.go

@@ -28,7 +28,7 @@ func NewTappxBidder(client *http.Client, endpointTemplate string) *TappxAdapter
 	a := &adapters.HTTPAdapter{Client: client}
 	template, err := template.New("endpointTemplate").Parse(endpointTemplate)
 	if err != nil {
-		glog.Fatal("Unable to parse endpoint url template")
+		glog.Fatal("Unable to parse endpoint url template: " + err.Error())
 		return nil
 	}
 	return &TappxAdapter{
@@ -98,56 +98,46 @@ func (a *TappxAdapter) MakeRequests(request *openrtb.BidRequest, reqInfo *adapte
 
 // Builds enpoint url based on adapter-specific pub settings from imp.ext
 func (a *TappxAdapter) buildEndpointURL(params *openrtb_ext.ExtImpTappx, test int) (string, error) {
-	reqHost, reqKey, reqEndpoint := "", "", ""
-	if params.Host != "" {
-		reqHost = params.Host
-	}
-	if params.Endpoint != "" {
-		reqEndpoint = params.Endpoint
-	}
-	if params.TappxKey != "" {
-		reqKey = params.TappxKey
-	}
 
-	if reqHost == "" {
+	if params.Host == "" {
 		return "", &errortypes.BadInput{
 			Message: "Tappx host undefined",
 		}
 	}
 
-	endpointParams := macros.EndpointTemplateParams{Host: reqHost}
-	host, err := macros.ResolveMacros(a.endpointTemplate, endpointParams)
+	if params.Endpoint == "" {
+		return "", &errortypes.BadInput{
+			Message: "Tappx endpoint undefined",
+		}
+	}
 
-	if err != nil {
+	if params.TappxKey == "" {
 		return "", &errortypes.BadInput{
-			Message: "Unable to parse endpoint url template",
+			Message: "Tappx key undefined",
 		}
 	}
 
-	thisURI, err := url.Parse(host)
+	endpointParams := macros.EndpointTemplateParams{Host: params.Host}
+	host, err := macros.ResolveMacros(a.endpointTemplate, endpointParams)
 
 	if err != nil {
 		return "", &errortypes.BadInput{
-			Message: "Malformed URL: check host parameter",
+			Message: "Unable to parse endpoint url template: " + err.Error(),
 		}
 	}
 
-	if reqEndpoint == "" {
+	thisURI, err := url.Parse(host)
+
+	if err != nil {
 		return "", &errortypes.BadInput{
-			Message: "Tappx endpoint undefined",
+			Message: "Malformed URL: " + err.Error(),
 		}
 	}
 
 	thisURI.Path += params.Endpoint
 
 	queryParams := url.Values{}
 
-	if reqKey == "" {
-		return "", &errortypes.BadInput{
-			Message: "Tappx key undefined",
-		}
-	}
-
 	queryParams.Add("tappxkey", params.TappxKey)
 
 	if test == 0 {

adapters/tappx/tappx_test.go

@@ -24,9 +24,10 @@ func TestTsValue(t *testing.T) {
 
 	url, err := adapter.buildEndpointURL(&tappxExt, test)
 
-	match, err := regexp.MatchString(`&ts=[0-9]{13}`, url)
+	match, err := regexp.MatchString(`https://example\.host\.tappx\.com/DUMMYENDPOINT\?tappxkey=dummy-tappx-key&ts=[0-9]{13}&type_cnn=prebid&v=1\.1`, url)
 	if err != nil {
-		//something happened during regex validation
+		t.Errorf("Error while running regex validation: %s", err.Error())
+		return
 	}
 	assert.True(t, match)
 }

adapters/tappx/tappxtest/supplemental/banner-impression-badhost.json

@@ -0,0 +1,39 @@
+{
+  "mockBidRequest": {
+    "id": "0000000000001",
+    "imp": [
+      {
+        "id": "adunit-1",
+        "banner": {
+          "w": 300,
+          "h": 250
+        },
+        "ext": {
+          "bidder": {
+            "host": "example.ho%st.tappx.com",
+            "endpoint": "PREBIDTEMPLATE",
+            "tappxkey": "pub-12345-android-9876"
+          }
+        }
+      }
+    ],
+    "app": {
+      "id": "app_001",
+      "bundle": "com.rovio.angrybirds",
+      "publisher": {
+        "id": "2"
+      }
+    },
+    "user": {
+      "buyeruid": "A-38327932832"
+    }
+  },
+
+  "expectedMakeRequestsErrors": [
+    {
+      "value": "Malformed URL: parse https://example.ho%st.tappx.com: invalid URL escape \"%st\"",
+      "comparison": "literal"
+    }
+  ]
+
+}