Check in codegen test expectations.

test/codegen/expect/corelib/uri_scheme_test.js

+dart_library.library('corelib/uri_scheme_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__uri_scheme_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const uri_scheme_test = Object.create(null);
+  let VoidToUri = () => (VoidToUri = dart.constFn(dart.definiteFunctionType(core.Uri, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let StringAndStringAndStringTodynamic = () => (StringAndStringAndStringTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, core.String, core.String])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  uri_scheme_test.testInvalidArguments = function() {
+    expect$.Expect.throws(dart.fn(() => core.Uri.new({scheme: "_"}), VoidToUri()), dart.fn(e => core.FormatException.is(e), dynamicTobool()));
+    expect$.Expect.throws(dart.fn(() => core.Uri.new({scheme: "http_s"}), VoidToUri()), dart.fn(e => core.FormatException.is(e), dynamicTobool()));
+    expect$.Expect.throws(dart.fn(() => core.Uri.new({scheme: "127.0.0.1:80"}), VoidToUri()), dart.fn(e => core.FormatException.is(e), dynamicTobool()));
+  };
+  dart.fn(uri_scheme_test.testInvalidArguments, VoidTovoid());
+  uri_scheme_test.testScheme = function() {
+    function test(expectedScheme, expectedUri, scheme) {
+      let uri = core.Uri.new({scheme: scheme});
+      expect$.Expect.equals(expectedScheme, uri.scheme);
+      expect$.Expect.equals(expectedUri, dart.toString(uri));
+      uri = core.Uri.parse(dart.str`${scheme}:`);
+      expect$.Expect.equals(expectedScheme, uri.scheme);
+      expect$.Expect.equals(expectedUri, dart.toString(uri));
+    }
+    dart.fn(test, StringAndStringAndStringTodynamic());
+    test("http", "http:", "http");
+    test("http", "http:", "HTTP");
+    test("http", "http:", "hTTP");
+    test("http", "http:", "Http");
+    test("http+ssl", "http+ssl:", "HTTP+ssl");
+    test("urn", "urn:", "urn");
+    test("urn", "urn:", "UrN");
+    test("a123.432", "a123.432:", "a123.432");
+  };
+  dart.fn(uri_scheme_test.testScheme, VoidTovoid());
+  uri_scheme_test.main = function() {
+    uri_scheme_test.testInvalidArguments();
+    uri_scheme_test.testScheme();
+  };
+  dart.fn(uri_scheme_test.main, VoidTodynamic());
+  // Exports:
+  exports.uri_scheme_test = uri_scheme_test;
+});