Add unittests for different transport security state generator components.

net/tools/transport_security_state_generator/spki_hash_unittest.cc

Index: net/tools/transport_security_state_generator/spki_hash_unittest.cc
diff --git a/net/tools/transport_security_state_generator/spki_hash_unittest.cc b/net/tools/transport_security_state_generator/spki_hash_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5758d2a01a8c099de09f6a11648d56457e555aa7
--- /dev/null
+++ b/net/tools/transport_security_state_generator/spki_hash_unittest.cc
@@ -0,0 +1,64 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "net/tools/transport_security_state_generator/spki_hash.h"
+#include "base/strings/string_number_conversions.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+
+namespace transport_security_state {
+
+namespace {
+
+TEST(SPKIHashTest, FromString) {
+  SPKIHash hash;
+
+  // Valid SHA256.
+  EXPECT_TRUE(
+      hash.FromString("sha256/1111111111111111111111111111111111111111111="));
+  std::vector<uint8_t> hash_vector(hash.data(), hash.data() + hash.size());
+  EXPECT_THAT(
+      hash_vector,
+      testing::ElementsAreArray(
+          {0xD7, 0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D,
+           0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7,
+           0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D, 0x75, 0xD7, 0x5D}));
+
+  SPKIHash hash2;
+  EXPECT_TRUE(
+      hash2.FromString("sha256/4osU79hfY3P2+WJGlT2mxmSL+5FIwLEVxTQcavyBNgQ="));
+  std::vector<uint8_t> hash_vector2(hash2.data(), hash2.data() + hash2.size());
+  EXPECT_THAT(
+      hash_vector2,
+      testing::ElementsAreArray(
+          {0xE2, 0x8B, 0x14, 0xEF, 0xD8, 0x5F, 0x63, 0x73, 0xF6, 0xF9, 0x62,
+           0x46, 0x95, 0x3D, 0XA6, 0xC6, 0x64, 0x8B, 0xFB, 0x91, 0x48, 0xC0,
+           0xB1, 0x15, 0xC5, 0x34, 0x1C, 0x6A, 0xFC, 0x81, 0x36, 0x04}));
+
+  SPKIHash hash3;
+
+  // Valid SHA1 should rejected.
+  EXPECT_FALSE(hash3.FromString("sha1/111111111111111111111111111="));
+  EXPECT_FALSE(hash3.FromString("sha1/gzF+YoVCU9bXeDGQ7JGQVumRueM="));
+
+  // SHA1 disguised as SHA256.
+  EXPECT_FALSE(hash3.FromString("sha256/111111111111111111111111111="));
+
+  // SHA512 disguised as SHA256.
+  EXPECT_FALSE(
+      hash3.FromString("sha256/ns3smS51SK/4P7uSVhSlCIMNAxkD+r6C/ZZA/"
+                       "07vac0uyMdRS4jKfqlvk3XxLFP1v5aMIxM5cdTM7FHNwxagQg=="));
+
+  // Invalid BASE64.
+  EXPECT_FALSE(hash3.FromString("sha256/hsts-preload"));
+  EXPECT_FALSE(hash3.FromString("sha256/1. 2. 3. security!="));
+}
+
+}  // namespace
+
+}  // namespace transport_security_state
+
+}  // namespace net