public void testNestedLambdas() throws Exception {
Function<String, Function<String, String>> f = (x) -> (y) -> x;
assertEquals(f.apply("Foo").apply("Bar"), "Foo");
Function<Integer, Function<Integer, Integer>> f2 = (x) -> (y) -> x;
assertEquals(f2.apply(42).apply(43), Integer.valueOf(42));
Function<Integer, Function<Integer, Integer>> f3 = (y) -> (x) -> x;
assertEquals(f3.apply(43).apply(42), Integer.valueOf(42));
Function<String, Function<String, Integer>> f4 = (x) -> (y) -> Integer.parseInt(x);
assertEquals(f4.apply("42").apply("43"), Integer.valueOf(42));
Function<String, Function<Integer, Integer>> f5 = (x) -> (y) -> Integer.parseInt(x);
assertEquals(f5.apply("42").apply(43), Integer.valueOf(42));
// Callable<Callable> c2 = () -> () -> 42;
// assertEquals(c2.call().call(), 42);
Supplier<Supplier> s2 = () -> () -> 42;
assertEquals(s2.get().get(), 42);
}
public void testBasicSupplier() throws Exception {
Supplier s = () -> 42;
assertEquals(42, s.get());
}