diff options
Diffstat (limited to 'libgo/go/expvar/expvar_test.go')
| -rw-r--r-- | libgo/go/expvar/expvar_test.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libgo/go/expvar/expvar_test.go b/libgo/go/expvar/expvar_test.go index 728e763896c..804b56c1aaa 100644 --- a/libgo/go/expvar/expvar_test.go +++ b/libgo/go/expvar/expvar_test.go @@ -183,6 +183,43 @@ func TestMapInit(t *testing.T) { } } +func TestMapDelete(t *testing.T) { + RemoveAll() + colors := NewMap("bike-shed-colors") + + colors.Add("red", 1) + colors.Add("red", 2) + colors.Add("blue", 4) + + n := 0 + colors.Do(func(KeyValue) { n++ }) + if n != 2 { + t.Errorf("after two Add calls with distinct keys, Do should invoke f 2 times; got %v", n) + } + + colors.Delete("red") + n = 0 + colors.Do(func(KeyValue) { n++ }) + if n != 1 { + t.Errorf("removed red, Do should invoke f 1 times; got %v", n) + } + + colors.Delete("notfound") + n = 0 + colors.Do(func(KeyValue) { n++ }) + if n != 1 { + t.Errorf("attempted to remove notfound, Do should invoke f 1 times; got %v", n) + } + + colors.Delete("blue") + colors.Delete("blue") + n = 0 + colors.Do(func(KeyValue) { n++ }) + if n != 0 { + t.Errorf("all keys removed, Do should invoke f 0 times; got %v", n) + } +} + func TestMapCounter(t *testing.T) { RemoveAll() colors := NewMap("bike-shed-colors") |