libbase: add parsedouble.h.
Bug: http://b/24905115
Test: run libbase_test --gtest_filter=parsedouble.smoke.
Change-Id: I604424772f2082b420935e6647da03981c0b8929
diff --git a/base/parsedouble_test.cpp b/base/parsedouble_test.cpp
new file mode 100644
index 0000000..8734c42
--- /dev/null
+++ b/base/parsedouble_test.cpp
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "android-base/parsedouble.h"
+
+#include <gtest/gtest.h>
+
+TEST(parsedouble, smoke) {
+ double d;
+ ASSERT_FALSE(android::base::ParseDouble("", &d));
+ ASSERT_FALSE(android::base::ParseDouble("x", &d));
+ ASSERT_FALSE(android::base::ParseDouble("123.4x", &d));
+
+ ASSERT_TRUE(android::base::ParseDouble("123.4", &d));
+ ASSERT_DOUBLE_EQ(123.4, d);
+ ASSERT_TRUE(android::base::ParseDouble("-123.4", &d));
+ ASSERT_DOUBLE_EQ(-123.4, d);
+
+ ASSERT_TRUE(android::base::ParseDouble("0", &d, 0.0));
+ ASSERT_DOUBLE_EQ(0.0, d);
+ ASSERT_FALSE(android::base::ParseDouble("0", &d, 1e-9));
+ ASSERT_FALSE(android::base::ParseDouble("3.0", &d, -1.0, 2.0));
+ ASSERT_TRUE(android::base::ParseDouble("1.0", &d, 0.0, 2.0));
+ ASSERT_DOUBLE_EQ(1.0, d);
+}