[issue-195] Fixed type as per review.

* Panic was spelled wrong in the one of the error messages for the
  test case.
* Additionally fixed a few `go vet` issues.

mvt/feature.go

@@ -177,10 +177,10 @@ func (c *cursor) ScalePoint(p tegola.Point) (nx, ny int64) {
 }
 
 func (c *cursor) MinMax() (min, max maths.Pt) {
-	return maths.Pt{0 - tilebuffer, 0 - tilebuffer},
+	return maths.Pt{X: 0 - tilebuffer, Y: 0 - tilebuffer},
 		maths.Pt{
-			float64(c.extent + tilebuffer),
-			float64(c.extent + tilebuffer),
+			X: float64(c.extent + tilebuffer),
+			Y: float64(c.extent + tilebuffer),
 		}
 }
 

mvt/feature_test.go

@@ -22,7 +22,7 @@ func TestEncodeGeometry(t *testing.T) {
 		}
 	*/
 	testcases := []struct {
-		desc string `"test":"desc"`
+		desc string `tbltest:"desc"`
 		geo  basic.Geometry
 		typ  vectorTile.Tile_GeomType
 		bbox tegola.BoundingBox

mvt/layer_test.go

@@ -34,22 +34,22 @@ func TestLayerAddFeatures(t *testing.T) {
 	fn := func(idx int, tcase tc) {
 		defer func() {
 			if r := recover(); r != nil {
-				t.Errorf("Did not expect AddFeatures to painc: Recovered: %v", r)
+				t.Errorf("[%v] did not expect AddFeatures to panic: recovered: %v", idx, r)
 			}
 		}()
 		// First create a blank layer to add the features to.
 		l := new(Layer)
 		skipped := l.AddFeatures(tcase.features...)
 		if tcase.skipped != skipped {
-			t.Errorf("[%v] skipped value; expected: %v got: %v", tcase.skipped, skipped)
+			t.Errorf("[%v] skipped value; expected: %v got: %v", idx, tcase.skipped, skipped)
 		}
 		gotFeatures := l.Features()
 		expectedFeatures := tcase.expected
 		if expectedFeatures == nil {
 			expectedFeatures = tcase.features
 		}
 		if len(gotFeatures) != len(expectedFeatures) {
-			t.Errorf("[%v] number of features incorrect. expected: %v got: %v", len(expectedFeatures), len(gotFeatures))
+			t.Errorf("[%v] number of features incorrect. expected: %v got: %v", idx, len(expectedFeatures), len(gotFeatures))
 		}
 		for i := range expectedFeatures {
 			if !reflect.DeepEqual(expectedFeatures[i], gotFeatures[i]) {