2 files changed, 43 insertions, 0 deletions
diff --git a/testsuite/systemtap.maps/linear_nearlyempty.exp b/testsuite/systemtap.maps/linear_nearlyempty.exp
new file mode 100644
index 00000000..dfb5e9ef
--- /dev/null
+++ b/testsuite/systemtap.maps/linear_nearlyempty.exp
@@ -0,0 +1,25 @@
+# Test nearly empty linear histogram
+
+set test "linear_nearlyempty"
+set ::result_string {count=2
+sum=1443
+min=444
+max=999
+avg=721
+value |-------------------------------------------------- count
+  300 |                                                   0
+  350 |                                                   0
+  400 |@                                                  1
+  450 |                                                   0
+  500 |                                                   0
+      ~
+  850 |                                                   0
+  900 |                                                   0
+  950 |@                                                  1
+ 1000 |                                                   0
+ 1050 |                                                   0
+}
+
+stap_run2 $srcdir/$subdir/$test.stp
+
+
diff --git a/testsuite/systemtap.maps/linear_nearlyempty.stp b/testsuite/systemtap.maps/linear_nearlyempty.stp
new file mode 100644
index 00000000..f0b70607
--- /dev/null
+++ b/testsuite/systemtap.maps/linear_nearlyempty.stp
@@ -0,0 +1,18 @@
+# test that we can check the count of an empty array
+
+global agg
+
+probe begin
+{
+	agg <<< 444
+	agg <<< 999
+	printf("count=%d\n", @count(agg))
+	if (@count(agg) > 0) {
+		printf("sum=%d\n", @sum(agg))
+        	printf("min=%d\n", @min(agg))
+	        printf("max=%d\n", @max(agg))
+        	printf("avg=%d\n", @avg(agg))
+	        print(@hist_linear(agg, 0, 1500, 50))
+	}
+	exit()
+}