test: add tests for block query

tests/resolvers.test.ts

@@ -37,6 +37,7 @@ import {
   ActionOutput,
   EventData,
   EventOutput,
+  MaxBlockHeightInfo,
   Maybe,
 } from 'src/resolvers-types.js';
 
@@ -47,6 +48,9 @@ interface ExecutorResult {
       }
     | {
         actions: Array<ActionOutput>;
+      }
+    | {
+        block: MaxBlockHeightInfo;
       };
 }
 
@@ -62,6 +66,12 @@ interface ActionQueryResult extends ExecutorResult {
   };
 }
 
+interface BlockQueryResult extends ExecutorResult {
+  data: {
+    block: MaxBlockHeightInfo;
+  };
+}
+
 const eventsQuery = `
 query getEvents($input: EventFilterOptionsInput!) {
   events(input: $input) {
@@ -121,6 +131,15 @@ query getActions($input: ActionFilterOptionsInput!) {
 }
 `;
 
+const blockQuery = `
+query maxBlockHeightInfo {
+  block {
+    canonicalMaxBlockHeight
+    pendingMaxBlockHeight
+    }
+}
+`;
+
 // This is the default connection string provided by the lightnet postgres container
 const PG_CONN = 'postgresql://postgres:postgres@localhost:5432/archive ';
 
@@ -131,6 +150,9 @@ interface ExecutorResult {
       }
     | {
         actions: Array<ActionOutput>;
+      }
+    | {
+        block: MaxBlockHeightInfo;
       };
 }
 
@@ -146,6 +168,12 @@ interface ActionQueryResult extends ExecutorResult {
   };
 }
 
+interface BlockQueryResult extends ExecutorResult {
+  data: {
+    block: MaxBlockHeightInfo;
+  };
+}
+
 describe('Query Resolvers', async () => {
   let executor: AsyncExecutor<GraphQLContext, HTTPExecutorOptions>;
   let senderKeypair: Keypair;
@@ -174,6 +202,12 @@ describe('Query Resolvers', async () => {
     })) as EventQueryResult;
   }
 
+  async function executeBlockQuery(): Promise<BlockQueryResult> {
+    return (await executor({
+      document: parse(`${blockQuery}`),
+    })) as BlockQueryResult;
+  }
+
   before(async () => {
     try {
       setNetworkConfig();
@@ -216,6 +250,25 @@ describe('Query Resolvers', async () => {
     process.exit(0);
   });
 
+  describe("Block", async () => {
+    let blockResponse: MaxBlockHeightInfo;
+    let results: BlockQueryResult;
+
+    test("Fetching the max block height should not throw", async () => {
+      assert.doesNotThrow(async () => {
+        await executeBlockQuery();
+      });
+    });
+
+    test("Fetching the max block height should return the max block height", async () => {
+      results = await executeBlockQuery();
+      blockResponse = results.data.block;
+      assert.ok(blockResponse.canonicalMaxBlockHeight > 0);
+      assert.ok(blockResponse.pendingMaxBlockHeight > 0);
+    });
+
+  });
+
   describe('Events', async () => {
     let eventsResponse: EventOutput[];
     let lastBlockEvents: Maybe<EventData>[];
@@ -508,8 +561,11 @@ describe('Query Resolvers', async () => {
       });
     });
   });
+
+
 });
 
+
 function structToAction(s: TestStruct) {
   return [
     s.x.toString(),