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realm / realm-core / daniel.tabacaru_565

26 Sep 2023 08:24AM CUT coverage: 91.211% (+0.02%) from 91.188%
daniel.tabacaru_565

Pull #7002

Evergreen

danieltabacaru
Integration test for write_not_allowed(230) error
Pull Request #7002: Fix optional field in json error

95888 of 175734 branches covered (0.0%)

85 of 85 new or added lines in 3 files covered. (100.0%)

91 existing lines in 17 files now uncovered.

232521 of 254927 relevant lines covered (91.21%)

6844992.69 hits per line

Source File
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98.72
/src/realm/array_blobs_big.cpp
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/*************************************************************************
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 *
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 * Copyright 2016 Realm Inc.
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 * http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 *
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 **************************************************************************/
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#include <algorithm>
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#include <realm/array_blobs_big.hpp>
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#include <realm/column_integer.hpp>
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using namespace realm;
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BinaryData ArrayBigBlobs::get_at(size_t ndx, size_t& pos) const noexcept
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{
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    ref_type ref = get_as_ref(ndx);
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    if (ref == 0)
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        return {}; // realm::null();
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    ArrayBlob blob(m_alloc);
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    blob.init_from_ref(ref);
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    return blob.get_at(pos);
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}
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void ArrayBigBlobs::add(BinaryData value, bool add_zero_term)
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{
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    REALM_ASSERT_7(value.size(), ==, 0, ||, value.data(), !=, 0);
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    if (value.is_null()) {
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        Array::add(0); // Throws
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    }
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    else {
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        ArrayBlob new_blob(m_alloc);
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        new_blob.create();                                                      // Throws
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        ref_type ref = new_blob.add(value.data(), value.size(), add_zero_term); // Throws
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        Array::add(from_ref(ref));                                              // Throws
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    }
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}
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void ArrayBigBlobs::set(size_t ndx, BinaryData value, bool add_zero_term)
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{
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    REALM_ASSERT_3(ndx, <, size());
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    REALM_ASSERT_7(value.size(), ==, 0, ||, value.data(), !=, 0);
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    ref_type ref = get_as_ref(ndx);
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    if (ref == 0 && value.is_null()) {
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        return;
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    }
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    else if (ref == 0 && value.data() != nullptr) {
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        ArrayBlob new_blob(m_alloc);
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        new_blob.create();                                             // Throws
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        ref = new_blob.add(value.data(), value.size(), add_zero_term); // Throws
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        Array::set_as_ref(ndx, ref);
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        return;
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    }
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    else if (ref != 0 && value.data() != nullptr) {
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        char* header = m_alloc.translate(ref);
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        if (Array::get_context_flag_from_header(header)) {
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            Array arr(m_alloc);
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            arr.init_from_mem(MemRef(header, ref, m_alloc));
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            arr.set_parent(this, ndx);
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            ref_type new_ref =
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                arr.blob_replace(0, arr.blob_size(), value.data(), value.size(), add_zero_term); // Throws
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            if (new_ref != ref) {
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                Array::set_as_ref(ndx, new_ref);
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            }
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        }
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        else {
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            ArrayBlob blob(m_alloc);
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            blob.init_from_mem(MemRef(header, ref, m_alloc));
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            blob.set_parent(this, ndx);
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            ref_type new_ref = blob.replace(0, blob.blob_size(), value.data(), value.size(), add_zero_term); // Throws
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            if (new_ref != ref) {
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                Array::set_as_ref(ndx, new_ref);
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            }
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        }
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        return;
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    }
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    else if (ref != 0 && value.is_null()) {
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        Array::destroy_deep(ref, get_alloc());
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        Array::set(ndx, 0);
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        return;
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    }
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    REALM_ASSERT(false);
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}
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void ArrayBigBlobs::insert(size_t ndx, BinaryData value, bool add_zero_term)
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{
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    REALM_ASSERT_3(ndx, <=, size());
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    REALM_ASSERT_7(value.size(), ==, 0, ||, value.data(), !=, 0);
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    if (value.is_null()) {
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        Array::insert(ndx, 0); // Throws
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    }
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    else {
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        ArrayBlob new_blob(m_alloc);
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        new_blob.create();                                                      // Throws
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        ref_type ref = new_blob.add(value.data(), value.size(), add_zero_term); // Throws
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        Array::insert(ndx, int64_t(ref)); // Throws
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    }
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}
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size_t ArrayBigBlobs::count(BinaryData value, bool is_string, size_t begin, size_t end) const noexcept
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{
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    size_t num_matches = 0;
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    size_t begin_2 = begin;
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    for (;;) {
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        size_t ndx = find_first(value, is_string, begin_2, end);
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        if (ndx == not_found)
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            break;
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        ++num_matches;
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        begin_2 = ndx + 1;
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    }
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    return num_matches;
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}
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size_t ArrayBigBlobs::find_first(BinaryData value, bool is_string, size_t begin, size_t end) const noexcept
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{
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    if (end == npos)
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        end = m_size;
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    REALM_ASSERT_11(begin, <=, m_size, &&, end, <=, m_size, &&, begin, <=, end);
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    // When strings are stored as blobs, they are always zero-terminated
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    // but the value we get as input might not be.
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    size_t value_size = value.size();
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    size_t full_size = is_string ? value_size + 1 : value_size;
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    if (value.is_null()) {
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        for (size_t i = begin; i != end; ++i) {
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            ref_type ref = get_as_ref(i);
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            if (ref == 0)
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                return i;
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        }
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    }
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    else {
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        for (size_t i = begin; i != end; ++i) {
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            ref_type ref = get_as_ref(i);
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            if (ref) {
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                const char* blob_header = get_alloc().translate(ref);
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                size_t sz = get_size_from_header(blob_header);
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                if (sz == full_size) {
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                    const char* blob_value = ArrayBlob::get(blob_header, 0);
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                    if (std::equal(blob_value, blob_value + value_size, value.data()))
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                        return i;
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                }
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            }
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        }
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    }
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    return not_found;
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}
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void ArrayBigBlobs::find_all(IntegerColumn& result, BinaryData value, bool is_string, size_t add_offset, size_t begin,
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                             size_t end)
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{
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    size_t begin_2 = begin;
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    for (;;) {
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        size_t ndx = find_first(value, is_string, begin_2, end);
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        if (ndx == not_found)
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            break;
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        result.add(add_offset + ndx); // Throws
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        begin_2 = ndx + 1;
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    }
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}
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void ArrayBigBlobs::verify() const
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{
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#ifdef REALM_DEBUG
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    REALM_ASSERT(has_refs());
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    for (size_t i = 0; i < size(); ++i) {
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        ref_type blob_ref = Array::get_as_ref(i);
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        // 0 is used to indicate realm::null()
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        if (blob_ref != 0) {
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            ArrayBlob blob(m_alloc);
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            blob.init_from_ref(blob_ref);
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            blob.verify();
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        }
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    }
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#endif
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}
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