initial sync*, part of #221

test/codegen/expect/expect.js

+dart_library.library('expect', null, /* Imports */[
+  "dart_runtime/dart",
+  'dart/core'
+], /* Lazy imports */[
+], function(exports, dart, core) {
+  'use strict';
+  let dartx = dart.dartx;
+  class Expect extends core.Object {
+    static _truncateString(string, start, end, length) {
+      if (dart.notNull(end) - dart.notNull(start) > dart.notNull(length)) {
+        end = dart.notNull(start) + dart.notNull(length);
+      } else if (dart.notNull(end) - dart.notNull(start) < dart.notNull(length)) {
+        let overflow = dart.notNull(length) - (dart.notNull(end) - dart.notNull(start));
+        if (dart.notNull(overflow) > 10)
+          overflow = 10;
+        start = dart.notNull(start) - ((dart.notNull(overflow) + 1) / 2).truncate();
+        end = dart.notNull(end) + (dart.notNull(overflow) / 2).truncate();
+        if (dart.notNull(start) < 0)
+          start = 0;
+        if (dart.notNull(end) > dart.notNull(string[dartx.length]))
+          end = string[dartx.length];
+      }
+      if (start == 0 && end == string[dartx.length])
+        return string;
+      let buf = new core.StringBuffer();
+      if (dart.notNull(start) > 0)
+        buf.write("...");
+      for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
+        let code = string[dartx.codeUnitAt](i);
+        if (dart.notNull(code) < 32) {
+          buf.write("\\x");
+          buf.write("0123456789abcdef"[dartx.get]((dart.notNull(code) / 16).truncate()));
+          buf.write("0123456789abcdef"[dartx.get](dart.notNull(code) % 16));
+        } else {
+          buf.writeCharCode(string[dartx.codeUnitAt](i));
+        }
+      }
+      if (dart.notNull(end) < dart.notNull(string[dartx.length]))
+        buf.write("...");
+      return dart.toString(buf);
+    }
+    static _stringDifference(expected, actual) {
+      if (dart.notNull(expected[dartx.length]) < 20 && dart.notNull(actual[dartx.length]) < 20)
+        return null;
+      for (let i = 0; dart.notNull(i) < dart.notNull(expected[dartx.length]) && dart.notNull(i) < dart.notNull(actual[dartx.length]); i = dart.notNull(i) + 1) {
+        if (expected[dartx.codeUnitAt](i) != actual[dartx.codeUnitAt](i)) {
+          let start = i;
+          i = dart.notNull(i) + 1;
+          while (dart.notNull(i) < dart.notNull(expected[dartx.length]) && dart.notNull(i) < dart.notNull(actual[dartx.length])) {
+            if (expected[dartx.codeUnitAt](i) == actual[dartx.codeUnitAt](i))
+              break;
+            i = dart.notNull(i) + 1;
+          }
+          let end = i;
+          let truncExpected = Expect._truncateString(expected, start, end, 20);
+          let truncActual = Expect._truncateString(actual, start, end, 20);
+          return `at index ${start}: Expected <${truncExpected}>, ` + `Found: <${truncActual}>`;
+        }
+      }
+      return null;
+    }
+    static equals(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (dart.equals(expected, actual))
+        return;
+      let msg = Expect._getMessage(reason);
+      if (typeof expected == 'string' && typeof actual == 'string') {
+        let stringDifference = Expect._stringDifference(dart.as(expected, core.String), dart.as(actual, core.String));
+        if (stringDifference != null) {
+          Expect._fail(`Expect.equals(${stringDifference}${msg}) fails.`);
+        }
+      }
+      Expect._fail(`Expect.equals(expected: <${expected}>, actual: <${actual}>${msg}) fails.`);
+    }
+    static isTrue(actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (dart.notNull(_identical(actual, true)))
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.isTrue(${actual}${msg}) fails.`);
+    }
+    static isFalse(actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (dart.notNull(_identical(actual, false)))
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.isFalse(${actual}${msg}) fails.`);
+    }
+    static isNull(actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (null == actual)
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.isNull(actual: <${actual}>${msg}) fails.`);
+    }
+    static isNotNull(actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (null != actual)
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.isNotNull(actual: <${actual}>${msg}) fails.`);
+    }
+    static identical(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (dart.notNull(_identical(expected, actual)))
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.identical(expected: <${expected}>, actual: <${actual}>${msg}) ` + "fails.");
+    }
+    static fail(msg) {
+      Expect._fail(`Expect.fail('${msg}')`);
+    }
+    static approxEquals(expected, actual, tolerance, reason) {
+      if (tolerance === void 0)
+        tolerance = null;
+      if (reason === void 0)
+        reason = null;
+      if (tolerance == null) {
+        tolerance = (dart.notNull(expected) / 10000.0)[dartx.abs]();
+      }
+      if (dart.notNull((dart.notNull(expected) - dart.notNull(actual))[dartx.abs]()) <= dart.notNull(tolerance))
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.approxEquals(expected:<${expected}>, actual:<${actual}>, ` + `tolerance:<${tolerance}>${msg}) fails`);
+    }
+    static notEquals(unexpected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (!dart.equals(unexpected, actual))
+        return;
+      let msg = Expect._getMessage(reason);
+      Expect._fail(`Expect.notEquals(unexpected: <${unexpected}>, actual:<${actual}>${msg}) ` + "fails.");
+    }
+    static listEquals(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      let msg = Expect._getMessage(reason);
+      let n = dart.notNull(expected[dartx.length]) < dart.notNull(actual[dartx.length]) ? expected[dartx.length] : actual[dartx.length];
+      for (let i = 0; dart.notNull(i) < dart.notNull(n); i = dart.notNull(i) + 1) {
+        if (!dart.equals(expected[dartx.get](i), actual[dartx.get](i))) {
+          Expect._fail(`Expect.listEquals(at index ${i}, ` + `expected: <${expected[dartx.get](i)}>, actual: <${actual[dartx.get](i)}>${msg}) fails`);
+        }
+      }
+      if (expected[dartx.length] != actual[dartx.length]) {
+        Expect._fail('Expect.listEquals(list length, ' + `expected: <${expected[dartx.length]}>, actual: <${actual[dartx.length]}>${msg}) ` + 'fails: Next element <' + `${dart.notNull(expected[dartx.length]) > dart.notNull(n) ? expected[dartx.get](n) : actual[dartx.get](n)}>`);
+      }
+    }
+    static mapEquals(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      let msg = Expect._getMessage(reason);
+      for (let key of expected.keys) {
+        if (!dart.notNull(actual.containsKey(key))) {
+          Expect._fail(`Expect.mapEquals(missing expected key: <${key}>${msg}) fails`);
+        }
+        Expect.equals(expected.get(key), actual.get(key));
+      }
+      for (let key of actual.keys) {
+        if (!dart.notNull(expected.containsKey(key))) {
+          Expect._fail(`Expect.mapEquals(unexpected key: <${key}>${msg}) fails`);
+        }
+      }
+    }
+    static stringEquals(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      if (expected == actual)
+        return;
+      let msg = Expect._getMessage(reason);
+      let defaultMessage = `Expect.stringEquals(expected: <${expected}>", <${actual}>${msg}) fails`;
+      if (expected == null || actual == null) {
+        Expect._fail(`${defaultMessage}`);
+      }
+      let left = 0;
+      let right = 0;
+      let eLen = expected[dartx.length];
+      let aLen = actual[dartx.length];
+      while (true) {
+        if (left == eLen || left == aLen || expected[dartx.get](left) != actual[dartx.get](left)) {
+          break;
+        }
+        left = dart.notNull(left) + 1;
+      }
+      let eRem = dart.notNull(eLen) - dart.notNull(left);
+      let aRem = dart.notNull(aLen) - dart.notNull(left);
+      while (true) {
+        if (right == eRem || right == aRem || expected[dartx.get](dart.notNull(eLen) - dart.notNull(right) - 1) != actual[dartx.get](dart.notNull(aLen) - dart.notNull(right) - 1)) {
+          break;
+        }
+        right = dart.notNull(right) + 1;
+      }
+      let leftSnippet = expected[dartx.substring](dart.notNull(left) < 10 ? 0 : dart.notNull(left) - 10, left);
+      let rightSnippetLength = dart.notNull(right) < 10 ? right : 10;
+      let rightSnippet = expected[dartx.substring](dart.notNull(eLen) - dart.notNull(right), dart.notNull(eLen) - dart.notNull(right) + dart.notNull(rightSnippetLength));
+      let eSnippet = expected[dartx.substring](left, dart.notNull(eLen) - dart.notNull(right));
+      let aSnippet = actual[dartx.substring](left, dart.notNull(aLen) - dart.notNull(right));
+      if (dart.notNull(eSnippet[dartx.length]) > 43) {
+        eSnippet = dart.notNull(eSnippet[dartx.substring](0, 20)) + "..." + dart.notNull(eSnippet[dartx.substring](dart.notNull(eSnippet[dartx.length]) - 20));
+      }
+      if (dart.notNull(aSnippet[dartx.length]) > 43) {
+        aSnippet = dart.notNull(aSnippet[dartx.substring](0, 20)) + "..." + dart.notNull(aSnippet[dartx.substring](dart.notNull(aSnippet[dartx.length]) - 20));
+      }
+      let leftLead = "...";
+      let rightTail = "...";
+      if (dart.notNull(left) <= 10)
+        leftLead = "";
+      if (dart.notNull(right) <= 10)
+        rightTail = "";
+      let diff = `\nDiff (${left}..${dart.notNull(eLen) - dart.notNull(right)}/${dart.notNull(aLen) - dart.notNull(right)}):\n` + `${leftLead}${leftSnippet}[ ${eSnippet} ]${rightSnippet}${rightTail}\n` + `${leftLead}${leftSnippet}[ ${aSnippet} ]${rightSnippet}${rightTail}`;
+      Expect._fail(`${defaultMessage}${diff}`);
+    }
+    static setEquals(expected, actual, reason) {
+      if (reason === void 0)
+        reason = null;
+      let missingSet = core.Set.from(expected);
+      missingSet.removeAll(actual);
+      let extraSet = core.Set.from(actual);
+      extraSet.removeAll(expected);
+      if (dart.notNull(extraSet.isEmpty) && dart.notNull(missingSet.isEmpty))
+        return;
+      let msg = Expect._getMessage(reason);
+      let sb = new core.StringBuffer(`Expect.setEquals(${msg}) fails`);
+      if (!dart.notNull(missingSet.isEmpty)) {
+        sb.write('\nExpected collection does not contain: ');
+      }
+      for (let val of missingSet) {
+        sb.write(`${val} `);
+      }
+      if (!dart.notNull(extraSet.isEmpty)) {
+        sb.write('\nExpected collection should not contain: ');
+      }
+      for (let val of extraSet) {
+        sb.write(`${val} `);
+      }
+      Expect._fail(dart.toString(sb));
+    }
+    static throws(f, check, reason) {
+      if (check === void 0)
+        check = null;
+      if (reason === void 0)
+        reason = null;
+      let msg = reason == null ? "" : `(${reason})`;
+      if (!dart.is(f, _Nullary)) {
+        Expect._fail(`Expect.throws${msg}: Function f not callable with zero arguments`);
+      }
+      try {
+        f();
+      } catch (e) {
+        let s = dart.stackTrace(e);
+        if (check != null) {
+          if (!dart.notNull(dart.dcall(check, e))) {
+            Expect._fail(`Expect.throws${msg}: Unexpected '${e}'\n${s}`);
+          }
+        }
+        return;
+      }
+
+      Expect._fail(`Expect.throws${msg} fails: Did not throw`);
+    }
+    static _getMessage(reason) {
+      return reason == null ? "" : `, '${reason}'`;
+    }
+    static _fail(message) {
+      throw new ExpectException(message);
+    }
+  }
+  dart.setSignature(Expect, {
+    statics: () => ({
+      _truncateString: [core.String, [core.String, core.int, core.int, core.int]],
+      _stringDifference: [core.String, [core.String, core.String]],
+      equals: [dart.void, [dart.dynamic, dart.dynamic], [core.String]],
+      isTrue: [dart.void, [dart.dynamic], [core.String]],
+      isFalse: [dart.void, [dart.dynamic], [core.String]],
+      isNull: [dart.void, [dart.dynamic], [core.String]],
+      isNotNull: [dart.void, [dart.dynamic], [core.String]],
+      identical: [dart.void, [dart.dynamic, dart.dynamic], [core.String]],
+      fail: [dart.void, [core.String]],
+      approxEquals: [dart.void, [core.num, core.num], [core.num, core.String]],
+      notEquals: [dart.void, [dart.dynamic, dart.dynamic], [core.String]],
+      listEquals: [dart.void, [core.List, core.List], [core.String]],
+      mapEquals: [dart.void, [core.Map, core.Map], [core.String]],
+      stringEquals: [dart.void, [core.String, core.String], [core.String]],
+      setEquals: [dart.void, [core.Iterable, core.Iterable], [core.String]],
+      throws: [dart.void, [dart.functionType(dart.void, [])], [_CheckExceptionFn, core.String]],
+      _getMessage: [core.String, [core.String]],
+      _fail: [dart.void, [core.String]]
+    }),
+    names: ['_truncateString', '_stringDifference', 'equals', 'isTrue', 'isFalse', 'isNull', 'isNotNull', 'identical', 'fail', 'approxEquals', 'notEquals', 'listEquals', 'mapEquals', 'stringEquals', 'setEquals', 'throws', '_getMessage', '_fail']
+  });
+  function _identical(a, b) {
+    return core.identical(a, b);
+  }
+  dart.fn(_identical, core.bool, [dart.dynamic, dart.dynamic]);
+  let _CheckExceptionFn = dart.typedef('_CheckExceptionFn', () => dart.functionType(core.bool, [dart.dynamic]));
+  let _Nullary = dart.typedef('_Nullary', () => dart.functionType(dart.dynamic, []));
+  class ExpectException extends core.Object {
+    ExpectException(message) {
+      this.message = message;
+    }
+    toString() {
+      return this.message;
+    }
+  }
+  ExpectException[dart.implements] = () => [core.Exception];
+  dart.setSignature(ExpectException, {
+    constructors: () => ({ExpectException: [ExpectException, [core.String]]})
+  });
+  class NoInline extends core.Object {
+    NoInline() {
+    }
+  }
+  dart.setSignature(NoInline, {
+    constructors: () => ({NoInline: [NoInline, []]})
+  });
+  class TrustTypeAnnotations extends core.Object {
+    TrustTypeAnnotations() {
+    }
+  }
+  dart.setSignature(TrustTypeAnnotations, {
+    constructors: () => ({TrustTypeAnnotations: [TrustTypeAnnotations, []]})
+  });
+  class AssumeDynamic extends core.Object {
+    AssumeDynamic() {
+    }
+  }
+  dart.setSignature(AssumeDynamic, {
+    constructors: () => ({AssumeDynamic: [AssumeDynamic, []]})
+  });
+  // Exports:
+  exports.Expect = Expect;
+  exports.ExpectException = ExpectException;
+  exports.NoInline = NoInline;
+  exports.TrustTypeAnnotations = TrustTypeAnnotations;
+  exports.AssumeDynamic = AssumeDynamic;
+});