Check in codegen test expectations.

test/codegen/expect/corelib/iterable_join_test.js

Index: test/codegen/expect/corelib/iterable_join_test.js
diff --git a/test/codegen/expect/corelib/iterable_join_test.js b/test/codegen/expect/corelib/iterable_join_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..e3a419dd20388932b43e665e80f175310337e1b0
--- /dev/null
+++ b/test/codegen/expect/corelib/iterable_join_test.js
@@ -0,0 +1,183 @@
+dart_library.library('corelib/iterable_join_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__iterable_join_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const iterable_join_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let JSArrayOfString = () => (JSArrayOfString = dart.constFn(_interceptors.JSArray$(core.String)))();
+  let JSArrayOfIC = () => (JSArrayOfIC = dart.constFn(_interceptors.JSArray$(iterable_join_test.IC)))();
+  let JSArrayOfStringable = () => (JSArrayOfStringable = dart.constFn(_interceptors.JSArray$(iterable_join_test.Stringable)))();
+  let JSArrayOfObject = () => (JSArrayOfObject = dart.constFn(_interceptors.JSArray$(core.Object)))();
+  let StringAndIterable__Todynamic = () => (StringAndIterable__Todynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [core.String, core.Iterable], [core.String])))();
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  let dynamicTovoid = () => (dynamicTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [dart.dynamic])))();
+  let StringToString = () => (StringToString = dart.constFn(dart.definiteFunctionType(core.String, [core.String])))();
+  let intToint = () => (intToint = dart.constFn(dart.definiteFunctionType(core.int, [core.int])))();
+  let ICToIC = () => (ICToIC = dart.constFn(dart.definiteFunctionType(iterable_join_test.IC, [iterable_join_test.IC])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let intToString = () => (intToString = dart.constFn(dart.definiteFunctionType(core.String, [core.int])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  iterable_join_test.IC = class IC extends core.Object {
+    new() {
+      this.count = 0;
+    }
+    toString() {
+      return dart.str`${(() => {
+        let x = this.count;
+        this.count = dart.notNull(x) + 1;
+        return x;
+      })()}`;
+    }
+  };
+  iterable_join_test.testJoin = function(expect, iterable, separator) {
+    if (separator === void 0) separator = null;
+    if (separator != null) {
+      expect$.Expect.equals(expect, iterable[dartx.join](separator));
+    } else {
+      expect$.Expect.equals(expect, iterable[dartx.join]());
+    }
+  };
+  dart.fn(iterable_join_test.testJoin, StringAndIterable__Todynamic());
+  let const$;
+  iterable_join_test.testCollections = function() {
+    iterable_join_test.testJoin("", [], ",");
+    iterable_join_test.testJoin("", [], "");
+    iterable_join_test.testJoin("", []);
+    iterable_join_test.testJoin("", core.Set.new(), ",");
+    iterable_join_test.testJoin("", core.Set.new(), "");
+    iterable_join_test.testJoin("", core.Set.new());
+    iterable_join_test.testJoin("42", JSArrayOfint().of([42]), ",");
+    iterable_join_test.testJoin("42", JSArrayOfint().of([42]), "");
+    iterable_join_test.testJoin("42", JSArrayOfint().of([42]));
+    iterable_join_test.testJoin("42", (() => {
+      let _ = core.Set.new();
+      _.add(42);
+      return _;
+    })(), ",");
+    iterable_join_test.testJoin("42", (() => {
+      let _ = core.Set.new();
+      _.add(42);
+      return _;
+    })(), "");
+    iterable_join_test.testJoin("42", (() => {
+      let _ = core.Set.new();
+      _.add(42);
+      return _;
+    })());
+    iterable_join_test.testJoin("a,b,c,d", JSArrayOfString().of(["a", "b", "c", "d"]), ",");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"]), "");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"]));
+    iterable_join_test.testJoin("null,b,c,d", JSArrayOfString().of([null, "b", "c", "d"]), ",");
+    iterable_join_test.testJoin("1,2,3,4", JSArrayOfint().of([1, 2, 3, 4]), ",");
+    let ic = new iterable_join_test.IC();
+    iterable_join_test.testJoin("0,1,2,3", JSArrayOfIC().of([ic, ic, ic, ic]), ",");
+    let set = core.Set.new();
+    set.add(1);
+    set.add(2);
+    set.add(3);
+    let perm = core.Set.new();
+    perm.add("123");
+    perm.add("132");
+    perm.add("213");
+    perm.add("231");
+    perm.add("312");
+    perm.add("321");
+    let setString = set.join();
+    expect$.Expect.isTrue(perm.contains(setString), dart.str`set: ${setString}`);
+    function testArray(array) {
+      iterable_join_test.testJoin("1,3,5,7,9", core.Iterable._check(dart.dsend(array, 'where', dart.fn(i => dart.dload(i, 'isOdd'), dynamicTodynamic()))), ",");
+      iterable_join_test.testJoin("0,2,4,6,8,10,12,14,16,18", core.Iterable._check(dart.dsend(array, 'map', dart.fn(i => dart.dsend(i, '*', 2), dynamicTodynamic()))), ",");
+      iterable_join_test.testJoin("5,6,7,8,9", core.Iterable._check(dart.dsend(array, 'skip', 5)), ",");
+      iterable_join_test.testJoin("5,6,7,8,9", core.Iterable._check(dart.dsend(array, 'skipWhile', dart.fn(i => dart.dsend(i, '<', 5), dynamicTodynamic()))), ",");
+      iterable_join_test.testJoin("0,1,2,3,4", core.Iterable._check(dart.dsend(array, 'take', 5)), ",");
+      iterable_join_test.testJoin("0,1,2,3,4", core.Iterable._check(dart.dsend(array, 'takeWhile', dart.fn(i => dart.dsend(i, '<', 5), dynamicTodynamic()))), ",");
+    }
+    dart.fn(testArray, dynamicTovoid());
+    testArray(JSArrayOfint().of([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]));
+    let fixedArray = core.List.new(10);
+    for (let i = 0; i < 10; i++) {
+      fixedArray[dartx.set](i, i);
+    }
+    testArray(fixedArray);
+    testArray(const$ || (const$ = dart.constList([0, 1, 2, 3, 4, 5, 6, 7, 8, 9], core.int)));
+    iterable_join_test.testJoin("a,b,c,d", JSArrayOfString().of(["a", "b", "c", "d"])[dartx.map](core.String)(dart.fn(x => x, StringToString())), ",");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"])[dartx.map](core.String)(dart.fn(x => x, StringToString())), "");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"])[dartx.map](core.String)(dart.fn(x => x, StringToString())));
+    iterable_join_test.testJoin("null,b,c,d", JSArrayOfString().of([null, "b", "c", "d"])[dartx.map](core.String)(dart.fn(x => x, StringToString())), ",");
+    iterable_join_test.testJoin("1,2,3,4", JSArrayOfint().of([1, 2, 3, 4])[dartx.map](core.int)(dart.fn(x => x, intToint())), ",");
+    iterable_join_test.testJoin("4,5,6,7", JSArrayOfIC().of([ic, ic, ic, ic])[dartx.map](iterable_join_test.IC)(dart.fn(x => x, ICToIC())), ",");
+  };
+  dart.fn(iterable_join_test.testCollections, VoidTodynamic());
+  iterable_join_test.testStringVariants = function() {
+    iterable_join_test.testJoin("axbxcxd", JSArrayOfString().of(["a", "b", "c", "d"]), "x");
+    iterable_join_test.testJoin("a b c d", JSArrayOfString().of(["a", "b", "c", "d"]), " ");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"]), "");
+    iterable_join_test.testJoin("abcd", JSArrayOfString().of(["a", "b", "c", "d"]));
+    iterable_join_test.testJoin("axbxcx ", JSArrayOfString().of(["a", "b", "c", " "]), "x");
+    iterable_join_test.testJoin("a b c  ", JSArrayOfString().of(["a", "b", "c", " "]), " ");
+    iterable_join_test.testJoin("abc ", JSArrayOfString().of(["a", "b", "c", " "]), "");
+    iterable_join_test.testJoin("abc ", JSArrayOfString().of(["a", "b", "c", " "]));
+    iterable_join_test.testJoin("ax"[dartx['*']](255) + "a", core.List.generate(256, dart.fn(_ => "a", intToString())), "x");
+    iterable_join_test.testJoin("a"[dartx['*']](256), core.List.generate(256, dart.fn(_ => "a", intToString())));
+    iterable_join_test.testJoin("a "[dartx['*']](255) + "a", core.List.generate(256, dart.fn(_ => "a", intToString())), " ");
+    iterable_join_test.testJoin(" "[dartx['*']](256), core.List.generate(256, dart.fn(_ => " ", intToString())));
+    iterable_join_test.testJoin(" x"[dartx['*']](255) + " ", core.List.generate(256, dart.fn(_ => " ", intToString())), "x");
+    let o1 = new iterable_join_test.Stringable("x");
+    let o2 = new iterable_join_test.Stringable("");
+    iterable_join_test.testJoin("xa"[dartx['*']](3) + "x", JSArrayOfStringable().of([o1, o1, o1, o1]), "a");
+    iterable_join_test.testJoin("x"[dartx['*']](4), JSArrayOfStringable().of([o1, o1, o1, o1]), "");
+    iterable_join_test.testJoin("x"[dartx['*']](4), JSArrayOfStringable().of([o1, o1, o1, o1]));
+    iterable_join_test.testJoin("x"[dartx['*']](3) + "", JSArrayOfStringable().of([o2, o2, o2, o2]), "x");
+    iterable_join_test.testJoin(""[dartx['*']](4), JSArrayOfStringable().of([o2, o2, o2, o2]), "");
+    iterable_join_test.testJoin(""[dartx['*']](4), JSArrayOfStringable().of([o2, o2, o2, o2]));
+    iterable_join_test.testJoin("a x", JSArrayOfObject().of(["a", " ", o1, o2]));
+    iterable_join_test.testJoin("a x", JSArrayOfObject().of(["a", " ", o2, o1]));
+    iterable_join_test.testJoin("ax ", JSArrayOfObject().of(["a", o1, " ", o2]));
+    iterable_join_test.testJoin("ax ", JSArrayOfObject().of(["a", o1, o2, " "]));
+    iterable_join_test.testJoin("ax ", JSArrayOfObject().of(["a", o2, o1, " "]));
+    iterable_join_test.testJoin("a x", JSArrayOfObject().of(["a", o2, " ", o1]));
+    iterable_join_test.testJoin(" ax", JSArrayOfObject().of([" ", "a", o1, o2]));
+    iterable_join_test.testJoin(" ax", JSArrayOfObject().of([" ", "a", o2, o1]));
+    iterable_join_test.testJoin("xa ", JSArrayOfObject().of([o1, "a", " ", o2]));
+    iterable_join_test.testJoin("xa ", JSArrayOfObject().of([o1, "a", o2, " "]));
+    iterable_join_test.testJoin("ax ", JSArrayOfObject().of([o2, "a", o1, " "]));
+    iterable_join_test.testJoin("a x", JSArrayOfObject().of([o2, "a", " ", o1]));
+    iterable_join_test.testJoin(" xa", JSArrayOfObject().of([" ", o1, "a", o2]));
+    iterable_join_test.testJoin(" ax", JSArrayOfObject().of([" ", o2, "a", o1]));
+    iterable_join_test.testJoin("x a", JSArrayOfObject().of([o1, " ", "a", o2]));
+    iterable_join_test.testJoin("xa ", JSArrayOfObject().of([o1, o2, "a", " "]));
+    iterable_join_test.testJoin("xa ", JSArrayOfObject().of([o2, o1, "a", " "]));
+    iterable_join_test.testJoin(" ax", JSArrayOfObject().of([o2, " ", "a", o1]));
+    iterable_join_test.testJoin(" xa", JSArrayOfObject().of([" ", o1, o2, "a"]));
+    iterable_join_test.testJoin(" xa", JSArrayOfObject().of([" ", o2, o1, "a"]));
+    iterable_join_test.testJoin("x a", JSArrayOfObject().of([o1, " ", o2, "a"]));
+    iterable_join_test.testJoin("x a", JSArrayOfObject().of([o1, o2, " ", "a"]));
+    iterable_join_test.testJoin("x a", JSArrayOfObject().of([o2, o1, " ", "a"]));
+    iterable_join_test.testJoin(" xa", JSArrayOfObject().of([o2, " ", o1, "a"]));
+  };
+  dart.fn(iterable_join_test.testStringVariants, VoidTovoid());
+  iterable_join_test.Stringable = class Stringable extends core.Object {
+    new(value) {
+      this.value = value;
+    }
+    toString() {
+      return this.value;
+    }
+  };
+  dart.setSignature(iterable_join_test.Stringable, {
+    constructors: () => ({new: dart.definiteFunctionType(iterable_join_test.Stringable, [core.String])})
+  });
+  iterable_join_test.main = function() {
+    iterable_join_test.testCollections();
+    iterable_join_test.testStringVariants();
+  };
+  dart.fn(iterable_join_test.main, VoidTodynamic());
+  // Exports:
+  exports.iterable_join_test = iterable_join_test;
+});