added first tests for reading files

file_io/test/NumpyHelpers.test.cpp

@@ -0,0 +1,31 @@
+#include <catch2/catch_test_macros.hpp>
+#include "aare/NumpyHelpers.hpp" //Is this really a public header?
+
+TEST_CASE("is_digits with a few standard cases"){
+    REQUIRE(is_digits(""));
+    REQUIRE(is_digits("123"));
+    REQUIRE(is_digits("0"));
+    REQUIRE_FALSE(is_digits("hej123"));
+    REQUIRE_FALSE(is_digits("a"));
+    REQUIRE_FALSE(is_digits(" "));
+    REQUIRE_FALSE(is_digits("abcdef"));
+}
+
+TEST_CASE("Check for quotes and return stripped string"){
+    REQUIRE(parse_str("'hej'") == "hej");    
+    REQUIRE(parse_str("'hej hej'") == "hej hej");    
+    REQUIRE(parse_str("''") == "");    
+}
+
+TEST_CASE("parsing a string without quotes throws"){
+    REQUIRE_THROWS(parse_str("hej"));
+}
+
+TEST_CASE("trim whitespace"){
+    REQUIRE(trim(" hej ") == "hej");
+    REQUIRE(trim("hej") == "hej");
+    REQUIRE(trim(" hej") == "hej");
+    REQUIRE(trim("hej ") == "hej");
+    REQUIRE(trim(" ") == "");
+    REQUIRE(trim(" \thej hej ") == "hej hej");
+}

file_io/test/RawFile.test.cpp

@@ -0,0 +1,80 @@
+#include <catch2/catch_test_macros.hpp>
+#include <filesystem>
+#include "aare/File.hpp"
+
+#include "test_config.hpp"
+
+TEST_CASE("Read number of frames from a jungfrau raw file"){
+    auto fpath = test_data_path() / "jungfrau" / "jungfrau_single_master_0.json";
+    REQUIRE(std::filesystem::exists(fpath));
+
+    File f(fpath, "r");
+    REQUIRE(f.total_frames() == 10);
+}
+
+TEST_CASE("Read frame numbers from a jungfrau raw file"){
+    auto fpath = test_data_path() / "jungfrau" / "jungfrau_single_master_0.json";
+    REQUIRE(std::filesystem::exists(fpath));
+
+    File f(fpath, "r");
+    
+    //we know this file has 10 frames with frame numbers 1 to 10
+    //f0 1,2,3
+    //f1 4,5,6
+    //f2 7,8,9
+    //f3 10
+    for (size_t i = 0; i < 10; i++){
+        CHECK(f.frame_number(i) == i+1);
+    }
+}
+
+TEST_CASE("Read data from a jungfrau 500k single port raw file"){
+    auto fpath = test_data_path() / "jungfrau" / "jungfrau_single_master_0.json";
+    REQUIRE(std::filesystem::exists(fpath));
+
+    File f(fpath, "r");
+    
+    //we know this file has 10 frames with pixel 0,0 being: 2123, 2051, 2109, 2117, 2089, 2095, 2072, 2126, 2097, 2102
+    std::vector<uint16_t> pixel_0_0 = {2123, 2051, 2109, 2117, 2089, 2095, 2072, 2126, 2097, 2102};
+    for (size_t i = 0; i < 10; i++){
+        auto frame = f.read();
+        CHECK(frame.rows() == 512);
+        CHECK(frame.cols() == 1024);
+        CHECK(frame.view<uint16_t>()(0,0) == pixel_0_0[i]);
+
+    }
+}
+
+TEST_CASE("Read frame numbers from a raw file"){
+    auto fpath = test_data_path() / "eiger" / "eiger_500k_16bit_master_0.json";
+    REQUIRE(std::filesystem::exists(fpath));
+
+    //we know this file has 3 frames with frame numbers 14, 15, 16
+    std::vector<size_t> frame_numbers = {14, 15, 16};
+
+    File f(fpath, "r");
+    for (size_t i = 0; i < 3; i++){
+        CHECK(f.frame_number(i) == frame_numbers[i]);
+    }
+}
+
+TEST_CASE("Compare reading from a numpy file with a raw file"){
+    auto fpath_raw = test_data_path() / "jungfrau" / "jungfrau_single_master_0.json";
+    REQUIRE(std::filesystem::exists(fpath_raw));
+
+    auto fpath_npy = test_data_path() / "jungfrau" / "jungfrau_single_0.npy";
+    REQUIRE(std::filesystem::exists(fpath_npy));
+
+    File raw(fpath_raw, "r");
+    File npy(fpath_npy, "r");
+
+    CHECK(raw.total_frames() == 10);
+    CHECK(npy.total_frames() == 10);
+
+    
+    for (size_t i=0; i<10; ++i){
+        auto raw_frame = raw.read();
+        auto npy_frame = npy.read();    
+        CHECK(raw_frame.view<uint16_t>() == npy_frame.view<uint16_t>());
+    }
+}