integration/docker: improve memory test

Consume twice the memory hot added to the container to guarantee the `out of memory` error. fixes #1504 Signed-off-by: Julio Montes <[email protected]>
kata-containers · Apr 26, 2019 · bb49514 · bb49514
1 parent 6ae9592
commit bb49514
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/integration/docker/mem_test.go b/integration/docker/mem_test.go
@@ -113,6 +113,7 @@ var _ = Describe("memory constraints", func() {
 		useKmem       bool
 		err           error
 		defaultMemSz  int
+		hotMemSz      int
 	)
 
 	BeforeEach(func() {
@@ -143,8 +144,9 @@ var _ = Describe("memory constraints", func() {
 
 	Context("run container exceeding memory constraints", func() {
 		It("should ran out of memory", func() {
-			memSize = "256MB"
-			limSize = strconv.Itoa(260+defaultMemSz) + "M"
+			hotMemSz = 256
+			memSize = fmt.Sprintf("%dMB", hotMemSz)
+			limSize = fmt.Sprintf("%dM", (hotMemSz*2)+defaultMemSz)
 			args = []string{"--name", id, "--rm", "-m", memSize, StressImage, "-mem-total", limSize, "-mem-alloc-size", limSize}
 			_, stderr, exitCode = dockerRun(args...)
 			Expect(exitCode).NotTo(Equal(0))