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Add XXXByPointer() helper functions

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This commit is contained in:
Milo Yip
2015-04-10 19:28:12 +08:00
parent cf0ff19cac
commit b2d72ef751
3 changed files with 142 additions and 4 deletions
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78
test/unittest/pointertest.cpp
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@@ -244,9 +244,18 @@ TEST(Pointer, Assignment) {
TEST(Pointer, Create) {
Document d;
EXPECT_EQ(&d, &Pointer("").Create(d, d.GetAllocator()));
EXPECT_EQ(&d["foo"], &Pointer("/foo").Create(d, d.GetAllocator()));
EXPECT_EQ(&d["foo"][0], &Pointer("/foo/0").Create(d, d.GetAllocator()));
{
Value* v = &Pointer("").Create(d, d.GetAllocator());
EXPECT_EQ(&d, v);
}
{
Value* v = &Pointer("/foo").Create(d, d.GetAllocator());
EXPECT_EQ(&d["foo"], v);
}
{
Value* v = &Pointer("/foo/0").Create(d, d.GetAllocator());
EXPECT_EQ(&d["foo"][0], v);
}
}
TEST(Pointer, Get) {
@@ -265,6 +274,7 @@ TEST(Pointer, Get) {
EXPECT_EQ(&d["k\"l"], Pointer("/k\"l").Get(d));
EXPECT_EQ(&d[" "], Pointer("/ ").Get(d));
EXPECT_EQ(&d["m~n"], Pointer("/m~0n").Get(d));
EXPECT_TRUE(Pointer("/abc").Get(d) == 0);
}
TEST(Pointer, GetWithDefault) {
@@ -298,3 +308,65 @@ TEST(Pointer, Swap) {
EXPECT_STREQ("baz", d["foo"][0].GetString());
EXPECT_STREQ("bar", d["foo"][1].GetString());
}
TEST(Pointer, CreateValueByPointer) {
Document d;
Document::AllocatorType& a = d.GetAllocator();
{
Value& v = CreateValueByPointer(d, Pointer("/foo/0"), a);
EXPECT_EQ(&d["foo"][0], &v);
}
{
Value& v = CreateValueByPointer(d, "/foo/1", a);
EXPECT_EQ(&d["foo"][1], &v);
}
}
TEST(Pointer, GetValueByPointer) {
Document d;
d.Parse(kJson);
EXPECT_EQ(&d["foo"][0], GetValueByPointer(d, Pointer("/foo/0")));
EXPECT_EQ(&d["foo"][0], GetValueByPointer(d, "/foo/0"));
// const version
const Value& v = d;
EXPECT_EQ(&d["foo"][0], GetValueByPointer(v, Pointer("/foo/0")));
EXPECT_EQ(&d["foo"][0], GetValueByPointer(v, "/foo/0"));
}
TEST(Pointer, GetValueByPointerWithDefault) {
Document d;
d.Parse(kJson);
Document::AllocatorType& a = d.GetAllocator();
const Value v("qux");
EXPECT_TRUE(Value("bar") == GetValueByPointerWithDefault(d, Pointer("/foo/0"), v, a));
EXPECT_TRUE(Value("baz") == GetValueByPointerWithDefault(d, "/foo/1", v, a));
}
TEST(Pointer, SetValueByPointer) {
Document d;
d.Parse(kJson);
Document::AllocatorType& a = d.GetAllocator();
SetValueByPointer(d, Pointer("/foo/0"), Value(123).Move(), a);
EXPECT_EQ(123, d["foo"][0].GetInt());
SetValueByPointer(d, "/foo/2", Value(456).Move(), a);
EXPECT_EQ(456, d["foo"][2].GetInt());
}
TEST(Pointer, SwapValueByPointer) {
Document d;
d.Parse(kJson);
Document::AllocatorType& a = d.GetAllocator();
SwapValueByPointer(d, Pointer("/foo/0"), *GetValueByPointer(d, "/foo/1"), a);
EXPECT_STREQ("baz", d["foo"][0].GetString());
EXPECT_STREQ("bar", d["foo"][1].GetString());
SwapValueByPointer(d, "/foo/0", *GetValueByPointer(d, "/foo/1"), a);
EXPECT_STREQ("bar", d["foo"][0].GetString());
EXPECT_STREQ("baz", d["foo"][1].GetString());
}