feat: Add ResolutionService to retrieve resolutions

resolution_test.go

@@ -0,0 +1,32 @@
+package jira
+
+import (
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"testing"
+)
+
+func TestResolutionService_GetList(t *testing.T) {
+	setup()
+	defer teardown()
+	testAPIEdpoint := "/rest/api/2/resolution"
+
+	raw, err := ioutil.ReadFile("./mocks/all_resolutions.json")
+	if err != nil {
+		t.Error(err.Error())
+	}
+	testMux.HandleFunc(testAPIEdpoint, func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		testRequestURL(t, r, testAPIEdpoint)
+		fmt.Fprint(w, string(raw))
+	})
+
+	resolution, _, err := testClient.Resolution.GetList()
+	if resolution == nil {
+		t.Error("Expected resolution list. Resolution list is nil")
+	}
+	if err != nil {
+		t.Errorf("Error given: %s", err)
+	}
+}