fix: add support for enum args in query encoder (tailcallhq#2994)

src/core/http/query_encoder.rs

@@ -64,6 +64,7 @@ pub fn convert_value(value: &async_graphql::Value) -> Option<String> {
         async_graphql::Value::String(s) => Some(s.to_string()),
         async_graphql::Value::Number(n) => Some(n.to_string()),
         async_graphql::Value::Boolean(b) => Some(b.to_string()),
+        async_graphql::Value::Enum(e) => Some(e.to_string()),
         _ => None,
     }
 }

tests/core/snapshots/test-enum-as-argument.md_0.snap

@@ -0,0 +1,17 @@
+---
+source: tests/core/spec.rs
+expression: response
+---
+{
+  "status": 200,
+  "headers": {
+    "content-type": "application/json"
+  },
+  "body": {
+    "data": {
+      "user": {
+        "name": "Json Schema"
+      }
+    }
+  }
+}

tests/core/snapshots/test-enum-as-argument.md_client.snap

@@ -0,0 +1,21 @@
+---
+source: tests/core/spec.rs
+expression: formatted
+---
+type Query {
+  user(id: Int!, test: Test): User
+}
+
+enum Test {
+  A
+  B
+}
+
+type User {
+  id: Int!
+  name: String!
+}
+
+schema {
+  query: Query
+}

tests/core/snapshots/test-enum-as-argument.md_merged.snap

@@ -0,0 +1,21 @@
+---
+source: tests/core/spec.rs
+expression: formatter
+---
+schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
+  query: Query
+}
+
+enum Test {
+  A
+  B
+}
+
+type Query {
+  user(id: Int!, test: Test): User @http(path: "/users/{{.args.id}}", query: [{key: "enum", value: "{{.args.test}}"}])
+}
+
+type User {
+  id: Int!
+  name: String!
+}

tests/execution/test-enum-as-argument.md

@@ -0,0 +1,39 @@
+# test enum as argument
+
+```graphql @config
+schema @server @upstream(baseURL: "http://jsonplaceholder.typicode.com") {
+  query: Query
+}
+
+type Query {
+  user(id: Int!, test: Test): User @http(path: "/users/{{.args.id}}", query: [{key: "enum", value: "{{.args.test}}"}])
+}
+
+enum Test {
+  A
+  B
+}
+
+type User {
+  id: Int!
+  name: String!
+}
+```
+
+```yml @mock
+- request:
+    method: GET
+    url: http://jsonplaceholder.typicode.com/users/1?enum=A
+  response:
+    status: 200
+    body:
+      id: 1
+      name: Json Schema
+```
+
+```yml @test
+- method: POST
+  url: http://localhost:8080/graphql
+  body:
+    query: "query { user(id: 1, test: A) { name } }"
+```