From 93f892bdbef93ea63d0e9e926fe78d08707d41ba Mon Sep 17 00:00:00 2001
From: Shu Chen <chenshu@google.com>
Date: Fri, 7 Jul 2017 21:40:07 +0800
Subject: [PATCH] [tests] Fix some unit tests random fail issue (#1966)

---
 src/core/meshcop/dataset.cpp | 1 +
 tests/unit/test_platform.cpp | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/meshcop/dataset.cpp b/src/core/meshcop/dataset.cpp
index 9140b74ea..4f19b6920 100644
--- a/src/core/meshcop/dataset.cpp
+++ b/src/core/meshcop/dataset.cpp
@@ -52,6 +52,7 @@ Dataset::Dataset(const Tlv::Type aType) :
     mLength(0),
     mType(aType)
 {
+    memset(mTlvs, 0, sizeof(mTlvs));
 }
 
 void Dataset::Clear(void)
diff --git a/tests/unit/test_platform.cpp b/tests/unit/test_platform.cpp
index 0fb701f65..dacafde17 100644
--- a/tests/unit/test_platform.cpp
+++ b/tests/unit/test_platform.cpp
@@ -495,7 +495,7 @@ exit:
         (void)aValue;
         (void)aValueLength;
 
-        return OT_ERROR_NONE;
+        return OT_ERROR_NOT_FOUND;
     }
 
     otError otPlatSettingsSet(otInstance *aInstance, uint16_t aKey, const uint8_t *aValue, uint16_t aValueLength)