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mobile/bind: fix RefMap invariant

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RefMap tracks its number of live Ref instances in the 'live' member.
However, when a reference was removed and later added, 'live' wasn't
updated accordingly. Fix and add a test.

Change-Id: I806e17ea0319d76db4d07b5f8d9107b146ee80db
Reviewed-on: https://go-review.googlesource.com/19975
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
This commit is contained in:
Elias Naur
2016-02-29 09:47:09 +00:00
parent 9ea846d4a9
commit 320ec40f63
2 changed files with 21 additions and 4 deletions
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bind/java/SeqTest.java
+16
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@@ -33,6 +33,22 @@ public class SeqTest extends InstrumentationTestCase {
assertEquals("const Log2E", 1/0.693147180559945309417232121458176568075500134360255254120680009, Testpkg.Log2E, 0.0001);
}
public void testRefMap() {
// Ensure that the RefMap.live count is kept in sync
// even a particular reference number is removed and
// added again
Seq.RefMap m = new Seq.RefMap();
Seq.Ref r = new Seq.Ref(1, null);
m.put(r.refnum, r);
m.remove(r.refnum);
m.put(r.refnum, r);
// Force the RefMap to grow, to activate the sanity
// checking of the live count in RefMap.grow.
for (int i = 2; i < 24; i++) {
m.put(i, new Seq.Ref(i, null));
}
}
public void testVar() {
assertEquals("var StringVar", "a string var", Testpkg.getStringVar());