Adding knobs on HQP provider.

chrome/browser/history/scored_history_match_unittest.cc

Index: chrome/browser/history/scored_history_match_unittest.cc
diff --git a/chrome/browser/history/scored_history_match_unittest.cc b/chrome/browser/history/scored_history_match_unittest.cc
index 4989966eda6eb271a3c5cc935a26e39dae626d98..c7b06bb091355023dafeea51780c93bc94bb7092 100644
--- a/chrome/browser/history/scored_history_match_unittest.cc
+++ b/chrome/browser/history/scored_history_match_unittest.cc
@@ -344,6 +344,69 @@ TEST_F(ScoredHistoryMatchTest, GetTopicalityScoreTrailingSlash) {
   EXPECT_EQ(hostname_no_slash, hostname);
 }
 
+// This function tests the function GetFinalRelevancyScore().
+TEST_F(ScoredHistoryMatchTest, GetFinalRelevancyScore) {
+  ScoredHistoryMatch scored_match;
+  // Check when topicality score is zero.
+  float topicality_score = 0.0;
+  float frequency_score = 10.0;
+  std::vector<ScoredHistoryMatch::ScoreMaxRelevance> hqp_buckets;
+  // hqp_relevance_buckets = "0.0:200,1.0:200,4.0:500,5.0:900";
+  hqp_buckets.push_back(std::make_pair(0.0, 100));
+  hqp_buckets.push_back(std::make_pair(1.0, 200));
+  hqp_buckets.push_back(std::make_pair(4.0, 500));
+  hqp_buckets.push_back(std::make_pair(5.0, 900));
+  EXPECT_EQ(0,
+            scored_match.GetFinalRelevancyScore(topicality_score,
+                                                frequency_score,
+                                                hqp_buckets));
+  // Check when intermediate score falls at the border range.
+  topicality_score = 0.5;
+  frequency_score = 10.0;
+  // intermediate_score = 0.5 * 10.0 = 5.0.
+  // hqp_relevance_buckets = "0.0:100,1.0:200,4.0:500,5.0:900,10.0:1000";
+  hqp_buckets.clear();
+  hqp_buckets.push_back(std::make_pair(0.0, 100));
+  hqp_buckets.push_back(std::make_pair(1.0, 200));
+  hqp_buckets.push_back(std::make_pair(4.0, 500));
+  hqp_buckets.push_back(std::make_pair(5.0, 900));
+  hqp_buckets.push_back(std::make_pair(10.0, 1000));
+  EXPECT_EQ(900,
+            scored_match.GetFinalRelevancyScore(topicality_score,
+                                                frequency_score,
+                                                hqp_buckets));
+  // Checking the score that falls into one of the buckets.
+  topicality_score = 0.5;
+  frequency_score = 10.0;
+  // intermediate_score = 0.5 * 10.0 = 5.0.
+  // hqp_relevance_buckets = "0.0:100,1.0:200,4.0:500,8.0:900,10.0:1000";
+  hqp_buckets.clear();
+  hqp_buckets.push_back(std::make_pair(0.0, 100));
+  hqp_buckets.push_back(std::make_pair(1.0, 200));
+  hqp_buckets.push_back(std::make_pair(4.0, 500));
+  hqp_buckets.push_back(std::make_pair(8.0, 900));
+  hqp_buckets.push_back(std::make_pair(10.0, 1000));
+  EXPECT_EQ(600,  // 500 + (((900 - 500)/(8 -4)) * 1) = 600.
+            scored_match.GetFinalRelevancyScore(topicality_score,
+                                                frequency_score,
+                                                hqp_buckets));
+  // Never give the score greater than maximum specified.
+  topicality_score = 0.5;
+  frequency_score = 22.0;
+  // intermediate_score = 0.5 * 22.0 = 11.0
+  // hqp_relevance_buckets = "0.0:100,1.0:200,4.0:500,8.0:900,10.0:1000";
+  hqp_buckets.clear();
+  hqp_buckets.push_back(std::make_pair(0.0, 100));
+  hqp_buckets.push_back(std::make_pair(1.0, 200));
+  hqp_buckets.push_back(std::make_pair(4.0, 500));
+  hqp_buckets.push_back(std::make_pair(8.0, 900));
+  hqp_buckets.push_back(std::make_pair(10.0, 1000));
+  EXPECT_EQ(1000,
+            scored_match.GetFinalRelevancyScore(topicality_score,
+                                                frequency_score,
+                                                hqp_buckets));
+}
+
 // This function only tests scoring of single terms that match exactly
 // once somewhere in the URL or title.
 TEST_F(ScoredHistoryMatchTest, GetTopicalityScore) {