X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=test%2Flogicdatasnapshot.cpp;h=c05b13f9302641b1eb67136acdbed4b83d14f7a0;hp=67e7dc10fe2179469644c156236485d6b15420d1;hb=0b02e0578cf750906b20848d98e73b21c23eda42;hpb=4ceab49abb3c0160cfefdefa6a9c84284d30f850;ds=sidebyside

diff --git a/test/logicdatasnapshot.cpp b/test/logicdatasnapshot.cpp
index 67e7dc10..c05b13f9 100644
--- 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);
 }