Add test coverage for FunctionPrefixTrimmingURLPathTransformer

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

gateway/handlers/function_prefix_trimming_url_path_transformer_test.go

@@ -0,0 +1,42 @@
+package handlers
+
+import (
+	"net/http"
+	"testing"
+)
+
+func Test_Transform_RemovesFunctionPrefixRootPath(t *testing.T) {
+
+	req, _ := http.NewRequest(http.MethodGet, "/function/figlet", nil)
+	transformer := FunctionPrefixTrimmingURLPathTransformer{}
+	want := ""
+	got := transformer.Transform(req)
+
+	if want != got {
+		t.Errorf("want: %s, got: %s", want, got)
+	}
+}
+
+func Test_Transform_RemovesFunctionPrefixWithSingleParam(t *testing.T) {
+
+	req, _ := http.NewRequest(http.MethodGet, "/function/figlet/employees", nil)
+	transformer := FunctionPrefixTrimmingURLPathTransformer{}
+	want := "/employees"
+	got := transformer.Transform(req)
+
+	if want != got {
+		t.Errorf("want: %s, got: %s", want, got)
+	}
+}
+
+func Test_Transform_RemovesFunctionPrefixWithParams(t *testing.T) {
+
+	req, _ := http.NewRequest(http.MethodGet, "/function/figlet/employees/100", nil)
+	transformer := FunctionPrefixTrimmingURLPathTransformer{}
+	want := "/employees/100"
+	got := transformer.Transform(req)
+
+	if want != got {
+		t.Errorf("want: %s, got: %s", want, got)
+	}
+}

gateway/handlers/transparent_url_path_transformer_test.go

@@ -0,0 +1,31 @@
+package handlers
+
+import (
+	"net/http"
+	"testing"
+)
+
+func Test_Transform_DoesntTransformRootPath(t *testing.T) {
+
+	req, _ := http.NewRequest(http.MethodGet, "/", nil)
+	transformer := TransparentURLPathTransformer{}
+	want := req.URL.Path
+	got := transformer.Transform(req)
+
+	if want != got {
+		t.Errorf("want: %s, got: %s", want, got)
+	}
+}
+
+func Test_Transform_DoesntTransformAdditionalPath(t *testing.T) {
+
+	req, _ := http.NewRequest(http.MethodGet, "/employees/", nil)
+	transformer := TransparentURLPathTransformer{}
+	want := req.URL.Path
+	got := transformer.Transform(req)
+
+	if want != got {
+		t.Errorf("want: %s, got: %s", want, got)
+	}
+
+}