Added filesystem-only starshatter::data DataLoader replacement

Step by step. The intent is to find a good spot between current data
representations and the standard library and put the intermediate
stage there. After it matures a bit, we can move further away.

2 files changed, 32 insertions, 7 deletions

diff --git a/FoundationEx/test/data.cpp b/FoundationEx/test/data.cpp
new file mode 100644
index 0000000..09ab49b
--- /dev/null
+++ b/FoundationEx/test/data.cpp
@@ -0,0 +1,26 @@
+#include <filesystem>
+#include <fstream>
+
+#include <gtest/gtest.h>
+
+#include <starshatter/foundation/data.h>
+
+
+namespace data = starshatter::foundation::data;
+namespace fs = std::filesystem;
+
+
+TEST(FoundationEx, OpenRelativePathOnFilesystem)
+{
+	fs::current_path(fs::temp_directory_path());
+	{
+		std::fstream tmp("sample", tmp.out | tmp.binary);
+		tmp << "Hello, there!\n";
+	}
+	data::toggle_filesystem(true);
+	auto file = data::open("sample");
+	ASSERT_TRUE(file.valid());
+	ASSERT_LT(0, file.available());
+	const auto text = file.more();
+	ASSERT_STREQ("Hello, there!\n", text);
+}
diff --git a/FoundationEx/test/reader.cpp b/FoundationEx/test/reader.cpp
index 395ad81..4bc4882 100644
--- a/FoundationEx/test/reader.cpp
+++ b/FoundationEx/test/reader.cpp
@@ -17,7 +17,8 @@ TEST(FoundationEx, ReadFromView)
 {
 	Reader reader("Hello, World!");
 	ASSERT_TRUE(reader.valid());
-	std::vector<char> buffer(reader.available());
+	const auto s = reader.available();
+	std::vector<char> buffer(s);
 	ASSERT_EQ(14, buffer.size());
 	const auto bytes = reader.read(buffer.data());
 	ASSERT_EQ(14, bytes);
@@ -54,12 +55,10 @@ TEST(FoundationEx, RelativeSeek)
 TEST(FoundationEx, CreateTextFromReader)
 {
 	const char* ref = "Hello!";
-	const auto size = 7;
-	auto ptr = std::make_unique<char[]>(size);
-	for (auto i = 0; i < size; ++i)
-		ptr[i] = ref[i];
+	auto ptr = std::make_unique<char[]>(std::strlen(ref) + 1);
+	std::strcpy(ptr.get(), ref);
 	Reader reader(std::move(ptr));
 	ASSERT_TRUE(reader.valid());
-	Text text(reader.data());
-	ASSERT_EQ("Hello!", text);
+	const auto text = reader.more();
+	ASSERT_STREQ(ref, text);
 }