Implement Current Time example

Mathematics/contracts/mathematics.fc

@@ -71,6 +71,16 @@ global int ctx_counter;
         return ();
     }
 
+    ;; How to get current time
+    ;; Cookbook link: https://docs.ton.org/develop/func/cookbook#how-to-get-current-time
+    if (op == 3) {
+        int current_time = now();
+        ctx_counter += current_time;
+
+        save_data();
+        return ();
+    }
+
     throw(777);
 }
 

Mathematics/tests/Mathematics.spec.ts

@@ -100,4 +100,31 @@ describe("Mathematics", () => {
 
     expect(counterAfter).toBeGreaterThan(counterBefore);
   });
+
+  it("Current time: set counter to current time", async () => {
+    const increaser = await blockchain.treasury("increaserTime");
+
+    const counterBefore = await mathematics.getCounter();
+
+    console.log("counter before increasing", counterBefore);
+
+    const increaseResult = await mathematics.sendCurrentTime(
+      increaser.getSender(),
+      {
+        value: toNano("0.05"),
+      },
+    );
+
+    expect(increaseResult.transactions).toHaveTransaction({
+      from: increaser.address,
+      to: mathematics.address,
+      success: true,
+    });
+
+    const counterAfter = Math.floor(Date.now() / 1000);
+
+    console.log("counter after increasing", counterAfter);
+
+    expect(counterAfter).toBeGreaterThan(counterBefore);
+  });
 });

Mathematics/wrappers/Mathematics.ts

@@ -75,6 +75,20 @@ export class Mathematics implements Contract {
     });
   }
 
+  async sendCurrentTime(
+    provider: ContractProvider,
+    via: Sender,
+    opts: {
+      value: bigint;
+    },
+  ) {
+    await provider.internal(via, {
+      value: opts.value,
+      sendMode: SendMode.PAY_GAS_SEPARATELY,
+      body: beginCell().storeUint(3, 32).storeUint(1, 32).endCell(),
+    });
+  }
+
   async getCounter(provider: ContractProvider) {
     const result = await provider.get("get_counter", []);
     return result.stack.readNumber();