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Tests for json_pointer::empty and json_pointer::parent_pointer
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@ -461,7 +461,7 @@ TEST_CASE("JSON pointers")
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}
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}
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SECTION("push and pop")
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SECTION("empty, push, pop and parent")
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{
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const json j =
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{
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@ -490,23 +490,28 @@ TEST_CASE("JSON pointers")
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// empty json_pointer returns the root JSON-object
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auto ptr = ""_json_pointer;
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CHECK(ptr.empty());
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CHECK(j[ptr] == j);
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// simple field access
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ptr.push_back("pi");
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CHECK(!ptr.empty());
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CHECK(j[ptr] == j["pi"]);
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ptr.pop_back();
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CHECK(ptr.empty());
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CHECK(j[ptr] == j);
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// object and children access
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const std::string answer("answer");
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ptr.push_back(answer);
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ptr.push_back("everything");
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CHECK(!ptr.empty());
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CHECK(j[ptr] == j["answer"]["everything"]);
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ptr.pop_back();
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ptr.pop_back();
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CHECK(ptr.empty());
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CHECK(j[ptr] == j);
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// push key which has to be encoded
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@ -514,6 +519,18 @@ TEST_CASE("JSON pointers")
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ptr.push_back("/");
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CHECK(j[ptr] == j["object"]["/"]);
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CHECK(ptr.to_string() == "/object/~1");
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CHECK(j[ptr.parent_pointer()] == j["object"]);
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ptr = ptr.parent_pointer().parent_pointer();
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CHECK(ptr.empty());
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CHECK(j[ptr] == j);
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// parent-pointer of the empty json_pointer is empty
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ptr = ptr.parent_pointer();
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CHECK(ptr.empty());
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CHECK(j[ptr] == j);
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CHECK_THROWS_WITH(ptr.pop_back(),
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"[json.exception.out_of_range.405] JSON pointer has no parent");
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}
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SECTION("operators")
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