| // RUN: %empty-directory(%t) | |
| // RUN: %target-build-swift %s -o %t/a.out4 -swift-version 4 && %target-codesign %t/a.out4 && %target-run %t/a.out4 | |
| // REQUIRES: executable_test | |
| import StdlibUnittest | |
| var tests = TestSuite("LazySlice") | |
| tests.test("CommuteLazyness") { | |
| let a = [1,2,3].lazy | |
| let b = a[...] | |
| var c = b.filter { $0 == 0 } | |
| expectType(LazyFilterCollection<Slice<LazyCollection<[Int]>>>.self, &c) | |
| } | |
| runAllTests() |