Add another missing include

Author: wcjohns

unit_tests/test_spec_file.cpp

@@ -1,3 +1,4 @@
+#include <array>
 #include <random>
 #include <numeric>
 #include <algorithm>
@@ -138,7 +139,7 @@ std::shared_ptr<SpecUtils::Measurement> makeMeasurement(int id, std::string detN
     auto devPairs = SpecUtils::DeviationPairs();
     for (size_t i = 0; i < 20; i++)
     {
-        auto devPair = std::make_pair(id + i + 10.0, id + i * -1.0F);
+        auto devPair = std::make_pair(id + i + 10.0f, id + i * -1.0F);
         devPairs.push_back(devPair);
     }
 
@@ -223,7 +224,7 @@ TEST_CASE("Round Trip")
 
                 auto &expSpectrum = *expectedM.gamma_counts();
                 auto &actualSpectrum = *expectedM.gamma_counts();
-                auto sum = std::accumulate(actualSpectrum.begin(), actualSpectrum.end(), 0);
+                auto sum = std::accumulate(actualSpectrum.begin(), actualSpectrum.end(), 0.0);
                 CHECK(sum > 0);
                 CHECK(expSpectrum == actualSpectrum);