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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchlib/diskindex/field_length_scanner.h>
#include <vespa/searchlib/index/docidandfeatures.h>
#include <vespa/vespalib/gtest/gtest.h>
using search::index::DocIdAndFeatures;
namespace search::diskindex {
class FieldLengthScannerTest : public ::testing::Test
{
protected:
FieldLengthScanner _scanner;
FieldLengthScannerTest()
: _scanner(3)
{
}
};
TEST_F(FieldLengthScannerTest, require_that_no_scan_gives_empty_length)
{
EXPECT_EQ(0, _scanner.get_field_length(1));
}
TEST_F(FieldLengthScannerTest, require_that_single_length_is_registered)
{
DocIdAndFeatures features;
features.set_doc_id(1);
features.elements().emplace_back(0, 1, 5);
_scanner.scan_features(features);
EXPECT_EQ(5u, _scanner.get_field_length(1));
}
TEST_F(FieldLengthScannerTest, require_that_duplicate_element_is_ignored)
{
DocIdAndFeatures features;
features.set_doc_id(1);
features.elements().emplace_back(10, 1, 5);
features.elements().emplace_back(100, 1, 23);
_scanner.scan_features(features);
EXPECT_EQ(28u, _scanner.get_field_length(1));
_scanner.scan_features(features); // elements 10 and 100 already scanned
EXPECT_EQ(28u, _scanner.get_field_length(1));
features.elements()[0].setElementId(11);
_scanner.scan_features(features); // element 100 already scanned
EXPECT_EQ(33u, _scanner.get_field_length(1));
features.elements()[1].setElementId(101);
_scanner.scan_features(features); // elements 10 already scanned
EXPECT_EQ(56u, _scanner.get_field_length(1));
}
TEST_F(FieldLengthScannerTest, require_that_documents_are_not_mixed)
{
DocIdAndFeatures features1;
DocIdAndFeatures features2;
features1.set_doc_id(1);
features1.elements().emplace_back(10, 1, 5);
features1.elements().emplace_back(100, 1, 23);
features2.set_doc_id(2);
features2.elements().emplace_back(10, 1, 7);
features2.elements().emplace_back(100, 1, 9);
_scanner.scan_features(features1);
_scanner.scan_features(features2);
EXPECT_EQ(28u, _scanner.get_field_length(1));
EXPECT_EQ(16u, _scanner.get_field_length(2));
}
}
GTEST_MAIN_RUN_ALL_TESTS()
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