Implemented O(log(N)) wave plotting

[pulseview.git] / test / logicdatasnapshot.cpp

diff --git a/test/logicdatasnapshot.cpp b/test/logicdatasnapshot.cpp
index 67e7dc10fe2179469644c156236485d6b15420d1..c05b13f9302641b1eb67136acdbed4b83d14f7a0 100644 (file)
--- a/test/logicdatasnapshot.cpp
+++ b/test/logicdatasnapshot.cpp
@@ -22,6 +22,8 @@
 
 #include "../logicdatasnapshot.h"
 
+using namespace std;
+
 void push_logic(LogicDataSnapshot &s, unsigned int length, uint8_t value)
 {
        sr_datafeed_logic logic;
@@ -43,6 +45,8 @@ BOOST_AUTO_TEST_CASE(LogicDataSnapshotTest)
 
        LogicDataSnapshot s(logic);
 
+       //----- Test LogicDataSnapshot::push_logic -----//
+
        BOOST_CHECK(s.get_sample_count() == 0);
        for(int i = 0; i < LogicDataSnapshot::ScaleStepCount; i++)
        {
@@ -101,4 +105,26 @@ BOOST_AUTO_TEST_CASE(LogicDataSnapshotTest)
        BOOST_CHECK_EQUAL(m1.data_length, LogicDataSnapshot::MipMapDataUnit);
        BOOST_REQUIRE(m1.data != NULL);
        BOOST_CHECK_EQUAL(((uint8_t*)m1.data)[0], 0x11);
+
+       //----- Test LogicDataSnapshot::get_subsampled_edges -----//
+
+       // Test a full view at full zoom.
+       vector<LogicDataSnapshot::EdgePair> edges;
+       s.get_subsampled_edges(edges, 0, 255, 1, 0);
+       BOOST_REQUIRE_EQUAL(edges.size(), 4);
+
+       BOOST_CHECK_EQUAL(edges[0].first, 0);
+       BOOST_CHECK_EQUAL(edges[1].first, 8);
+       BOOST_CHECK_EQUAL(edges[2].first, 16);
+       BOOST_CHECK_EQUAL(edges[3].first, 255);
+
+       // Test a subset at high zoom
+       edges.clear();
+       s.get_subsampled_edges(edges, 6, 17, 0.05f, 0);
+       BOOST_REQUIRE_EQUAL(edges.size(), 4);
+
+       BOOST_CHECK_EQUAL(edges[0].first, 6);
+       BOOST_CHECK_EQUAL(edges[1].first, 8);
+       BOOST_CHECK_EQUAL(edges[2].first, 16);
+       BOOST_CHECK_EQUAL(edges[3].first, 17);
 }