diff --git a/api/queries.go b/api/queries.go
index aa26c0be0..ece7e7a77 100644
--- a/api/queries.go
+++ b/api/queries.go
@@ -21,6 +21,8 @@ type PullRequest struct {
 	HeadRefName string
 }
 
+var OverriddenQueryFunction func(query string, variables map[string]string, v interface{}) error
+
 func PullRequests() (PullRequestsPayload, error) {
 	type edges struct {
 		Edges []struct {
@@ -98,7 +100,12 @@ func PullRequests() (PullRequestsPayload, error) {
 	}
 
 	var resp response
-	err := graphQL(query, variables, &resp)
+	var err error
+	if OverriddenQueryFunction != nil {
+		err = OverriddenQueryFunction(query, variables, &resp)
+	} else {
+		err = graphQL(query, variables, &resp)
+	}
 	if err != nil {
 		return PullRequestsPayload{}, err
 	}
diff --git a/command/fixtures/pr.json b/command/fixtures/pr.json
new file mode 100644
index 000000000..3d2507c0e
--- /dev/null
+++ b/command/fixtures/pr.json
@@ -0,0 +1,30 @@
+{
+  "repository": {
+    "pullRequests": {
+      "edges": [
+        {
+          "node": {
+            "number": 10,
+            "title": "test",
+            "url": "https://github.com/github/gh-cli/pull/10",
+            "headRefName": "test"
+          }
+        }
+      ]
+    }
+  },
+  "viewerCreated": {
+    "edges": [
+      {
+        "node": {
+          "number": 8,
+          "title": "Pull in the GraphQL API functionality",
+          "url": "https://github.com/github/gh-cli/pull/8",
+          "headRefName": "graphql"
+        }
+      }
+    ],
+    "pageInfo": { "hasNextPage": false }
+  },
+  "reviewRequested": { "edges": [], "pageInfo": { "hasNextPage": false } }
+}