Step 7: writing the tests

Author: avasisht23

tests/solana-hello-world.ts

@@ -9,4 +9,62 @@ describe("solana-hello-world", () => {
 
  const program = anchor.workspace
  .SolanaHelloWorld as Program<SolanaHelloWorld>;
+
+ it("Can create a message", async () => {
+ const message = anchor.web3.Keypair.generate();
+ const messageContent = "Hello World!";
+ await program.rpc.createMessage(messageContent, {
+ accounts: {
+ message: message.publicKey,
+ author: provider.wallet.publicKey,
+ systemProgram: anchor.web3.SystemProgram.programId,
+ },
+ signers: [message],
+ });
+
+ const messageAccount = await program.account.message.fetch(
+ message.publicKey
+ );
+
+ assert.equal(
+ messageAccount.author.toBase58(),
+ provider.wallet.publicKey.toBase58()
+ );
+ assert.equal(messageAccount.content, messageContent);
+ assert.ok(messageAccount.timestamp);
+ });
+
+ it("Can create and then update a message", async () => {
+ const message = anchor.web3.Keypair.generate();
+ const messageContent = "Hello World!";
+ await program.rpc.createMessage(messageContent, {
+ accounts: {
+ message: message.publicKey,
+ author: provider.wallet.publicKey,
+ systemProgram: anchor.web3.SystemProgram.programId,
+ },
+ signers: [message],
+ });
+
+ const updatedMessageContent = "Solana is cool!";
+ await program.rpc.updateMessage(updatedMessageContent, {
+ accounts: {
+ message: message.publicKey,
+ author: provider.wallet.publicKey,
+ systemProgram: anchor.web3.SystemProgram.programId,
+ },
+ });
+
+ const messageAccount = await program.account.message.fetch(
+ message.publicKey
+ );
+
+ assert.equal(
+ messageAccount.author.toBase58(),
+ provider.wallet.publicKey.toBase58()
+ );
+ assert.notEqual(messageAccount.content, messageContent);
+ assert.equal(messageAccount.content, updatedMessageContent);
+ assert.ok(messageAccount.timestamp);
+ });
 });