Add initial implementation of RdbBucket unit test

test/unit/Makefile

@@ -10,7 +10,7 @@ OBJECTS = GigablastTest.o \
 	FctypesTest.o \
 	JsonTest.o \
 	PosTest.o ProcessTest.o \
-	RdbListTest.o RobotRuleTest.o RobotsTest.o \
+	RdbBucketsTest.o RdbListTest.o RobotRuleTest.o RobotsTest.o \
 	ScalingFunctionsTest.o SummaryTest.o \
 	UnicodeTest.o UrlComponentTest.o UrlParserTest.o UrlTest.o \
 	WordsTest.o \

test/unit/RdbBucketsTest.cpp

@@ -0,0 +1,37 @@
+#include "gtest/gtest.h"
+#include "RdbBuckets.h"
+#include "Posdb.h"
+
+static bool addPosdbKey(RdbBuckets *buckets, int64_t termId, int64_t docId) {
+	char key[MAX_KEY_BYTES];
+	Posdb::makeStartKey(&key, termId, docId);
+	buckets->addNode(0, key, NULL, 0);
+}
+
+TEST(RdbBucketTest, AddNode) {
+	static const int total_records = 10;
+	static const int64_t docId = 1;
+	RdbBuckets buckets;
+	buckets.set(Posdb::getFixedDataSize(), 1024 * 1024, "test-posdb", RDB_POSDB, "posdb", Posdb::getKeySize());
+
+	for (int i = 0; i < total_records; i++) {
+		addPosdbKey(&buckets, i, docId);
+	}
+
+	// use extremes
+	const char *startKey = KEYMIN();
+	const char *endKey = KEYMAX();
+	int32_t numPosRecs  = 0;
+	int32_t numNegRecs = 0;
+
+	RdbList list;
+	buckets.getList(0, startKey, endKey, -1, &list, &numPosRecs, &numNegRecs, Posdb::getUseHalfKeys());
+
+	// verify that data returned is the same as data inserted above
+	for (int i = 0; i < total_records; ++i, list.skipCurrentRecord()) {
+		const char *rec = list.getCurrentRec();
+		EXPECT_EQ(i, Posdb::getTermId(rec));
+		EXPECT_EQ(docId, Posdb::getDocId(rec));
+	}
+	EXPECT_TRUE(list.isExhausted());
+}