Java: Add some more taint-getter-setter tests.

Author: aschackmull

java/ql/test/library-tests/dataflow/taintgettersetter/A.java

@@ -34,4 +34,38 @@ void foo(Box b1, Box b2) {
     Box b4 = Box.mk(taint());
     sink(b4.getS1());
   }
+
+  static class Box2 {
+    String s;
+    String getS() { return s; }
+    void setS(String s) { this.s = s; }
+
+    Box2(String s) {
+      setS(s + "1");
+    }
+    String getS1() { return getS() + "2"; }
+    String getS2() { return step(getS() + "_") + "2"; }
+    void setS1(String s) { setS("3" + s); }
+    void setS2(String s) { setS("3" + step("_" + s)); }
+    static Box2 mk(String s) {
+      Box2 b = new Box2("");
+      b.setS(step(s));
+      return b;
+    }
+  }
+
+  void foo2(Box2 b1, Box2 b2) {
+    b1.setS1(taint());
+    sink(b1.getS1());
+
+    b2.setS2(taint());
+    sink(b2.getS2());
+
+    String t3 = taint();
+    Box2 b3 = new Box2(step(t3));
+    sink(b3.s);
+
+    Box2 b4 = Box2.mk(taint());
+    sink(b4.getS1());
+  }
 }

java/ql/test/library-tests/dataflow/taintgettersetter/taintgettersetter.expected

@@ -2,3 +2,7 @@
 | A.java:27:14:27:20 | taint(...) | A.java:28:10:28:19 | getS2(...) |
 | A.java:30:17:30:23 | taint(...) | A.java:32:10:32:13 | b3.s |
 | A.java:34:21:34:27 | taint(...) | A.java:35:10:35:19 | getS1(...) |
+| A.java:58:14:58:20 | taint(...) | A.java:59:10:59:19 | getS1(...) |
+| A.java:61:14:61:20 | taint(...) | A.java:62:10:62:19 | getS2(...) |
+| A.java:64:17:64:23 | taint(...) | A.java:66:10:66:13 | b3.s |
+| A.java:68:23:68:29 | taint(...) | A.java:69:10:69:19 | getS1(...) |