From 11933c038df81f57c0e7d15f5a8795b74e874843 Mon Sep 17 00:00:00 2001
From: Gil <mcg@google.com>
Date: Mon, 21 May 2018 13:17:29 -0700
Subject: Add a C++ native StringFormat (#1289)

* Add StringFormat
* Use StringFormat
---
 .../firebase/firestore/util/string_format_test.cc  | 110 +++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 Firestore/core/test/firebase/firestore/util/string_format_test.cc

(limited to 'Firestore/core/test/firebase/firestore/util/string_format_test.cc')

diff --git a/Firestore/core/test/firebase/firestore/util/string_format_test.cc b/Firestore/core/test/firebase/firestore/util/string_format_test.cc
new file mode 100644
index 0000000..f0ec20d
--- /dev/null
+++ b/Firestore/core/test/firebase/firestore/util/string_format_test.cc
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2018 Google
+ *
+ * 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 "Firestore/core/src/firebase/firestore/util/string_format.h"
+
+#include "absl/strings/string_view.h"
+#include "gtest/gtest.h"
+
+namespace firebase {
+namespace firestore {
+namespace util {
+
+TEST(StringFormatTest, Empty) {
+  EXPECT_EQ("", StringFormat(""));
+  EXPECT_EQ("", StringFormat("%s", std::string().c_str()));
+  EXPECT_EQ("", StringFormat("%s", ""));
+}
+
+TEST(StringFormatTest, CString) {
+  EXPECT_EQ("Hello World", StringFormat("Hello %s", "World"));
+  EXPECT_EQ("Hello World", StringFormat("%s World", "Hello"));
+  EXPECT_EQ("Hello World", StringFormat("Hello%sWorld", " "));
+
+  const char* value = "World";
+  EXPECT_EQ("Hello World", StringFormat("Hello %s", value));
+
+  value = nullptr;
+  EXPECT_EQ("Hello null", StringFormat("Hello %s", value));
+}
+
+TEST(StringFormatTest, String) {
+  EXPECT_EQ("Hello World", StringFormat("Hello %s", std::string{"World"}));
+
+  std::string value{"World"};
+  EXPECT_EQ("Hello World", StringFormat("Hello %s", value));
+}
+
+TEST(StringFormatTest, StringView) {
+  EXPECT_EQ("Hello World",
+            StringFormat("Hello %s", absl::string_view{"World"}));
+  EXPECT_EQ("Hello World",
+            StringFormat("%s World", absl::string_view{"Hello"}));
+  EXPECT_EQ("Hello World",
+            StringFormat("Hello%sWorld", absl::string_view{" "}));
+}
+
+TEST(StringFormatTest, Int) {
+  std::string value = StringFormat("Hello %s", 123);
+  EXPECT_EQ("Hello 123", value);
+}
+
+TEST(StringFormatTest, Float) {
+  std::string value = StringFormat("Hello %s", 1.5);
+  EXPECT_EQ("Hello 1.5", value);
+}
+
+TEST(StringFormatTest, Bool) {
+  EXPECT_EQ("Hello true", StringFormat("Hello %s", true));
+  EXPECT_EQ("Hello false", StringFormat("Hello %s", false));
+}
+
+TEST(StringFormatTest, Pointer) {
+  // pointers implicitly convert to bool. Make sure this doesn't happen in
+  // this API.
+  int value = 4;
+  EXPECT_NE("Hello true", StringFormat("Hello %s", &value));
+  EXPECT_EQ("Hello null", StringFormat("Hello %s", nullptr));
+}
+
+TEST(StringFormatTest, Mixed) {
+  EXPECT_EQ("string=World, bool=true, int=42, float=1.5",
+            StringFormat("string=%s, bool=%s, int=%s, float=%s", "World", true,
+                         42, 1.5));
+  EXPECT_EQ("World%true%42%1.5",
+            StringFormat("%s%%%s%%%s%%%s", "World", true, 42, 1.5));
+}
+
+TEST(StringFormatTest, Literal) {
+  EXPECT_EQ("Hello %", StringFormat("Hello %%"));
+  EXPECT_EQ("% World", StringFormat("%% World"));
+}
+
+TEST(StringFormatTest, Invalid) {
+  EXPECT_EQ("Hello <invalid>", StringFormat("Hello %@", 42));
+}
+
+TEST(StringFormatTest, Missing) {
+  EXPECT_EQ("Hello <missing>", StringFormat("Hello %s"));
+}
+
+TEST(StringFormatTest, Excess) {
+  EXPECT_EQ("Hello World", StringFormat("Hello %s", "World", 42));
+}
+
+}  //  namespace util
+}  //  namespace firestore
+}  //  namespace firebase
-- 
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