tests: add tests for capabilities

Signed-off-by: Alex Jia <ajia@redhat.com>

tests/integration/capabilities.bats

@@ -0,0 +1,55 @@
+#!/usr/bin/env bats
+
+load helpers
+
+function setup() {
+	setup_busybox
+	update_config '.process.args = ["/bin/cat", "/proc/self/status"]'
+}
+
+function teardown() {
+	teardown_bundle
+}
+
+@test "runc run no capability" {
+	runc run test_no_caps
+	[ "$status" -eq 0 ]
+
+	[[ "${output}" == *"CapInh:	0000000000000000"* ]]
+	[[ "${output}" == *"CapAmb:	0000000000000000"* ]]
+	[[ "${output}" == *"NoNewPrivs:	1"* ]]
+}
+
+@test "runc run with unknown capability" {
+	update_config '.process.capabilities.bounding = ["CAP_UNKNOWN", "UNKNOWN_CAP"]'
+	runc run test_unknown_caps
+	[ "$status" -eq 0 ]
+
+	[[ "${output}" == *"CapInh:	0000000000000000"* ]]
+	[[ "${output}" == *"CapAmb:	0000000000000000"* ]]
+	[[ "${output}" == *"NoNewPrivs:	1"* ]]
+}
+
+@test "runc run with new privileges" {
+	update_config '.process.noNewPrivileges = false'
+	runc run test_new_privileges
+	[ "$status" -eq 0 ]
+
+	[[ "${output}" == *"CapInh:	0000000000000000"* ]]
+	[[ "${output}" == *"CapAmb:	0000000000000000"* ]]
+	[[ "${output}" == *"NoNewPrivs:	0"* ]]
+}
+
+@test "runc run with some capabilities" {
+	update_config '.process.user = {"uid":0}'
+	update_config '.process.capabilities.bounding = ["CAP_SYS_ADMIN"]'
+	update_config '.process.capabilities.permitted = ["CAP_SYS_ADMIN", "CAP_AUDIT_WRITE", "CAP_KILL", "CAP_NET_BIND_SERVICE"]'
+	runc run test_some_caps
+	[ "$status" -eq 0 ]
+
+	[[ "${output}" == *"CapInh:	0000000000000000"* ]]
+	[[ "${output}" == *"CapBnd:	0000000000200000"* ]]
+	[[ "${output}" == *"CapEff:	0000000000200000"* ]]
+	[[ "${output}" == *"CapPrm:	0000000000200000"* ]]
+	[[ "${output}" == *"NoNewPrivs:	1"* ]]
+}