test rename overhaul: step 6 - isolate tests

tests/isolate/src/MintMakerTest.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// Things that should be "auto-generated" are between AUTO START and
-// AUTO END (or just AUTO if it's a single line).
-
-#library("MintMakerTest");
-#import("dart:isolate");
-#import('../../../lib/unittest/unittest.dart');
-
-class Mint {
-  Mint() : registry_ = new Map<SendPort, Purse>() {
-    // AUTO START
-    ReceivePort mintPort = new ReceivePort();
-    port = mintPort.toSendPort();
-    serveMint(mintPort);
-    // AUTO END
-  }
-
-  // AUTO START
-  void serveMint(ReceivePort port) {
-    port.receive((var message, SendPort replyTo) {
-      int balance = message;
-      Purse purse = createPurse(balance);
-      replyTo.send([ purse.port ], null);
-    });
-  }
-  // AUTO END
-
-  Purse createPurse(int balance) {
-    Purse purse = new Purse(this, balance);
-    registry_[purse.port] = purse;
-    return purse;
-  }
-
-  Purse lookupPurse(SendPort port) {
-    return registry_[port];
-  }
-
-  Map<SendPort, Purse> registry_;
-  // AUTO
-  SendPort port;
-}
-
-
-// AUTO START
-class MintWrapper {
-  MintWrapper(SendPort this.mint_) {}
-
-  void createPurse(int balance, handlePurse(PurseWrapper purse)) {
-    mint_.call(balance).then((var message) {
-      SendPort purse = message[0];
-      handlePurse(new PurseWrapper(purse));
-    });
-  }
-
-  SendPort mint_;
-}
-// AUTO END
-
-
-/*
-One way this could look without the autogenerated code:
-
-class Mint {
-  Mint() : registry_ = new Map<SendPort, Purse>() {
-  }
-
-  wrap Purse createPurse(int balance) {
-    Purse purse = new Purse(this, balance);
-    registry_[purse.port] = purse;
-    return purse;
-  }
-
-  Purse lookupPurse(SendPort port) {
-    return registry_[port];
-  }
-
-  Map<SendPort, Purse> registry_;
-}
-
-The other end of the port would use Wrapper<Mint> as the wrapper, or
-Future<Mint> as a future for the wrapper.
-*/
-
-
-class Purse {
-  Purse(Mint this.mint, int this.balance) {
-    // AUTO START
-    ReceivePort recipient = new ReceivePort();
-    port = recipient.toSendPort();
-    servePurse(recipient);
-    // AUTO END
-  }
-
-  // AUTO START
-  void servePurse(ReceivePort recipient) {
-    recipient.receive((var message, SendPort replyTo) {
-      String command = message[0];
-      if (command == "balance") {
-        replyTo.send(queryBalance(), null);
-      } else if (command == "deposit") {
-        Purse source = mint.lookupPurse(message[2]);
-        deposit(message[1], source);
-      } else if (command == "sprout") {
-        Purse result = sproutPurse();
-        replyTo.send([ result.port ], null);
-      } else {
-        // TODO: Send an exception back.
-        replyTo.send("Exception: Command not understood", null);
-      }
-    });
-  }
-  // AUTO END
-
-  int queryBalance() { return balance; }
-
-  Purse sproutPurse() { return mint.createPurse(0); }
-
-  void deposit(int amount, Purse source) {
-    // TODO: Throw an exception if the source purse doesn't hold
-    // enough dough.
-    balance += amount;
-    source.balance -= amount;
-  }
-
-  Mint mint;
-  int balance;
-  // AUTO
-  SendPort port;
-}
-
-
-// AUTO START
-class PurseWrapper {
-  PurseWrapper(SendPort this.purse_) {}
-
-  void queryBalance(handleBalance(int balance)) {
-    purse_.call([ "balance" ]).then((var message) {
-      int balance = message;
-      handleBalance(balance);
-    });
-  }
-
-  void sproutPurse(handleSprouted(PurseWrapper sprouted)) {
-    purse_.call([ "sprout" ]).then((var message) {
-      SendPort sprouted = message[0];
-      handleSprouted(new PurseWrapper(sprouted));
-    });
-  }
-
-  void deposit(PurseWrapper source, int amount) {
-    purse_.send([ "deposit", amount, source.purse_ ], null);
-  }
-
-
-  SendPort purse_;
-}
-// AUTO END
-
-
-// AUTO STATUS UNCLEAR!
-
-class MintMakerWrapperIsolate extends Isolate {
-  MintMakerWrapperIsolate() : super() { }
-  void main() {
-    this.port.receive((var message, SendPort replyTo) {
-      Mint mint = new Mint();
-      replyTo.send([ mint.port ], null);
-    });
-  }
-}
-
-class MintMakerWrapper {
-  MintMakerWrapper() {
-    port_ = new MintMakerWrapperIsolate().spawn();
-  }
-
-  void makeMint(handleMint(MintWrapper mint)) {
-    port_.then((SendPort port) {
-      port.call(null).then((var message) {
-        SendPort mint = message[0];
-        handleMint(new MintWrapper(mint));
-      });
-    });
-  }
-
-  Future<SendPort> port_;
-}
-
-_checkBalance(PurseWrapper wrapper, expected) {
-  wrapper.queryBalance(expectAsync1((int balance) {
-    expect(balance).equals(expected);
-  }));
-}
-
-main() {
-  test("creating purse, deposit, and query balance", () {
-    MintMakerWrapper mintMaker = new MintMakerWrapper();
-    mintMaker.makeMint(expectAsync1((MintWrapper mint) {
-      mint.createPurse(100, expectAsync1((PurseWrapper purse) {
-        _checkBalance(purse, 100);
-        purse.sproutPurse(expectAsync1((PurseWrapper sprouted) {
-          _checkBalance(sprouted, 0);
-          _checkBalance(purse, 100);
-
-          sprouted.deposit(purse, 5);
-          _checkBalance(sprouted, 0 + 5);
-          _checkBalance(purse, 100 - 5);
-
-          sprouted.deposit(purse, 42);
-          _checkBalance(sprouted, 0 + 5 + 42);
-          _checkBalance(purse, 100 - 5 - 42);
-        }));
-      }));
-    }));
-  });
-
-  /* This is an attempt to show how the above code could look like if we had
-   * better language support for asynchronous messages (deferred/asynccall).
-   * The static helper methods like createPurse and queryBalance would also
-   * have to be marked async.
-
-  void run(port) {
-    MintMakerWrapper mintMaker = spawnMintMaker();
-    deferred {
-      MintWrapper mint = asynccall mintMaker.createMint();
-      PurseWrapper purse = asynccall mint.createPurse(100);
-      Expect.equals(100, asynccall purse.queryBalance());
-
-      PurseWrapper sprouted = asynccall purse.sproutPurse();
-      Expect.equals(0, asynccall sprouted.queryBalance());
-
-      asynccall sprouted.deposit(purse, 5);
-      Expect.equals(0 + 5, asynccall sprouted.queryBalance());
-      Expect.equals(100 - 5, asynccall purse.queryBalance());
-
-      asynccall sprouted.deposit(purse, 42);
-      Expect.equals(0 + 5 + 42, asynccall sprouted.queryBalance());
-      Expect.equals(100 - 5 - 42, asynccall purse.queryBalance());
-    }
-  }
-  */
-
-  /* And a version using futures and wrappers.
-
-  void run(port) {
-    Wrapper<MintMaker> mintMaker = spawnMintMaker();
-    Future<Mint> mint = mintMaker...createMint();
-    Future<Purse> purse = mint...createPurse(100);
-    Expect.equals(100, purse.queryBalance());
-
-    Future<Purse> sprouted = purse...sproutPurse();
-    Expect.equals(0, sprouted.queryBalance());
-
-    sprouted...deposit(purse, 5);
-    Expect.equals(0 + 5, sprouted.queryBalance());
-    Expect.equals(100 - 5, purse.queryBalance());
-
-    sprouted...deposit(purse, 42);
-    Expect.equals(0 + 5 + 42, sprouted.queryBalance());
-    Expect.equals(100 - 5 - 42, purse.queryBalance());
-  }
-  */
-}