tpm2-tools: fix yaml.load warning in test scripts

The yaml.load(f) is deprecated since pyyaml 5.1.
Use yaml.load(f, Loader=yaml.BaseLoader) instead of it.
See https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation

Fixes warning:
YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated,
as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>

meta-tpm2/recipes-tpm/tpm2-tools/files/0001-test-fix-yaml.load-warning.patch

@@ -0,0 +1,92 @@
+From 0de180698bc992420fa8670d1ecce24008a4e3b9 Mon Sep 17 00:00:00 2001
+From: Yi Zhao <yi.zhao@windriver.com>
+Date: Tue, 10 Mar 2020 11:18:51 +0800
+Subject: [PATCH] test: fix yaml.load warning
+
+The yaml.load(f) is deprecated since pyyaml 5.1.
+Use yaml.load(f, Loader=yaml.BaseLoader) instead of it.
+See https://github.com/yaml/pyyaml/wiki/PyYAML-yaml.load(input)-Deprecation
+
+Fixes warning:
+YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated,
+as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.
+
+Upstream-Status: Submitted [https://github.com/tpm2-software/tpm2-tools/pull/1944]
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+---
+ test/system/test_tpm2_activecredential.sh | 2 +-
+ test/system/test_tpm2_create.sh           | 2 +-
+ test/system/test_tpm2_createprimary.sh    | 2 +-
+ test/system/test_tpm2_nv.sh               | 2 +-
+ test/system/test_tpm2_pcrevent.sh         | 2 +-
+ 5 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/test/system/test_tpm2_activecredential.sh b/test/system/test_tpm2_activecredential.sh
+index d8cadf5..3c9cf6e 100755
+--- a/test/system/test_tpm2_activecredential.sh
++++ b/test/system/test_tpm2_activecredential.sh
+@@ -61,7 +61,7 @@ from __future__ import print_function
+ import yaml
+ 
+ with open('ak.out', 'r') as f:
+-    doc = yaml.load(f)
++    doc = yaml.load(f, Loader=yaml.BaseLoader)
+     print(doc['loaded-key']['name'])
+ pyscript`
+ 
+diff --git a/test/system/test_tpm2_create.sh b/test/system/test_tpm2_create.sh
+index d0bf031..ff192ca 100755
+--- a/test/system/test_tpm2_create.sh
++++ b/test/system/test_tpm2_create.sh
+@@ -59,7 +59,7 @@ import yaml
+ 
+ with open("$2") as f:
+ 	try:
+-		y = yaml.load(f)
++		y = yaml.load(f, Loader=yaml.BaseLoader)
+ 		found = "$1" in y
+ 		if (not found):
+ 			sys.stderr.write('Could not find index 0x%X\n' % ("$1"))
+diff --git a/test/system/test_tpm2_createprimary.sh b/test/system/test_tpm2_createprimary.sh
+index 83bdad4..cc4dce0 100755
+--- a/test/system/test_tpm2_createprimary.sh
++++ b/test/system/test_tpm2_createprimary.sh
+@@ -73,7 +73,7 @@ import yaml
+ 
+ with open("$2") as f:
+ 	try:
+-		y = yaml.load(f)
++		y = yaml.load(f, Loader=yaml.BaseLoader)
+ 		found = "$1" in y
+ 		if (not found):
+ 			sys.stderr.write('Could not find index 0x%X\n' % ("$1"))
+diff --git a/test/system/test_tpm2_nv.sh b/test/system/test_tpm2_nv.sh
+index 2db6522..756d7ea 100755
+--- a/test/system/test_tpm2_nv.sh
++++ b/test/system/test_tpm2_nv.sh
+@@ -69,7 +69,7 @@ import yaml
+ 
+ with open("$2") as f:
+ 	try:
+-		y = yaml.load(f)
++		y = yaml.load(f, Loader=yaml.BaseLoader)
+ 		found = $1 in y
+ 		if (not found):
+ 			sys.stderr.write('Could not find index 0x%X\n' % ($1))
+diff --git a/test/system/test_tpm2_pcrevent.sh b/test/system/test_tpm2_pcrevent.sh
+index 30ec932..74f640b 100755
+--- a/test/system/test_tpm2_pcrevent.sh
++++ b/test/system/test_tpm2_pcrevent.sh
+@@ -59,7 +59,7 @@ import yaml
+ with open("$1", 'r') as stream:
+ 
+     try:
+-        y = yaml.load(stream)
++        y = yaml.load(stream, Loader=yaml.BaseLoader)
+         alg = y["$2"]
+         value = alg[$3]
+         print(value)
+-- 
+2.7.4
+

meta-tpm2/recipes-tpm/tpm2-tools/tpm2-tools_3.2.1.bb

@@ -2,6 +2,7 @@ include ${BPN}.inc
 
 SRC_URI = "\
     https://github.com/tpm2-software/${BPN}/releases/download/${PV}/${BPN}-${PV}.tar.gz \
+    file://0001-test-fix-yaml.load-warning.patch \
 "
 SRC_URI[md5sum] = "17f22e9b47682f4601eb55324282ad6e"
 SRC_URI[sha256sum] = "568ff32f99e0835db5d8cea2dce781b6cd6c1034026514240995dae5d9e728b0"