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OptionalInlining: more flatMap tests

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This commit is contained in:
Tagir Valeev
2017-07-28 18:20:58 +07:00
parent 746819da50
commit 8fdfa4e608
1 changed files with 10 additions and 0 deletions
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java/java-tests/testData/inspection/dataFlow/fixture/OptionalInlining.java
+10
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@@ -158,10 +158,20 @@ public class OptionalInlining {
opt.flatMap(x -> <warning descr="Function may return null, but it's not allowed here">null</warning>);
opt.flatMap(<warning descr="Function may return null, but it's not allowed here">this::nullableOptionalMethod</warning>);
opt.flatMap(x -> <warning descr="Function may return null, but it's not allowed here">x.isEmpty() ? null : Optional.of(x)</warning>);
opt.flatMap(x -> {
if (x.isEmpty()) {
return <warning descr="Function may return null, but it's not allowed here">null</warning>;
}
else {
return Optional.of(x);
}
});
String s = opt.flatMap(str -> Optional.of(str.length() > 10 ? "foo" : "bar")).orElse("baz");
if (<warning descr="Condition 's.equals(\"qux\")' is always 'false'">s.equals("qux")</warning>) {
System.out.println("Never");
}
boolean res = <warning descr="Condition 'opt.filter(x -> x.isEmpty()).flatMap(x -> x.length() <= 2 ? Optional.empty() : Optional.of(\"foo\")) ...' is always 'false'">opt.filter(x -> x.isEmpty()).flatMap(x -> <warning descr="Condition 'x.length() <= 2' is always 'true'">x.length() <= 2</warning> ? Optional.empty() : Optional.of("foo"))
.isPresent()</warning>;
}
void testIfPresent(Optional<String> opt) {