Add unit tests

[libs/core.git] / tests / file.cpp

diff --git a/tests/file.cpp b/tests/file.cpp
new file mode 100644 (file)
index 0000000..ccd2eb5
--- /dev/null
+++ b/tests/file.cpp
@@ -0,0 +1,87 @@
+#include <msp/core/systemerror.h>
+#include <msp/io/file.h>
+#include <msp/test/test.h>
+
+using namespace std;
+using namespace Msp;
+
+class FileTests: public Test::RegisteredTest<FileTests>
+{
+public:
+       FileTests();
+
+       static const char *get_name() { return "File"; }
+
+private:
+       void write();
+       void read();
+       void seek();
+       void file_not_found();
+       void invalid_access();
+};
+
+
+FileTests::FileTests()
+{
+       add(&FileTests::write,          "Writing");
+       add(&FileTests::read,           "Reading");
+       add(&FileTests::seek,           "Seeking");
+       add(&FileTests::file_not_found, "file_not_found").expect_throw<IO::file_not_found>();
+       add(&FileTests::invalid_access, "invalid_access").expect_throw<IO::invalid_access>();
+}
+
+void FileTests::write()
+{
+       IO::File out("test.txt", IO::M_WRITE);
+       out.write("foobar\n");
+       out.write("quux\n");
+}
+
+void FileTests::read()
+{
+       IO::File in("test.txt");
+
+       string line;
+       EXPECT(in.getline(line));
+       EXPECT_EQUAL(line, "foobar");
+
+       char buf[128];
+       unsigned len = in.read(buf, sizeof(buf));
+       EXPECT_EQUAL(len, 5U);
+       EXPECT_EQUAL(string(buf, len), "quux\n");
+
+       len = in.read(buf, sizeof(buf));
+       EXPECT_EQUAL(len, 0U);
+       EXPECT(in.eof());
+}
+
+void FileTests::seek()
+{
+       IO::File in("test.txt");
+
+       IO::SeekOffset pos = in.seek(3, IO::S_BEG);
+       EXPECT_EQUAL(pos, 3);
+       char c = in.get();
+       EXPECT_EQUAL(c, 'b');
+
+       pos = in.seek(1, IO::S_CUR);
+       EXPECT_EQUAL(pos, 5);
+       c = in.get();
+       EXPECT_EQUAL(c, 'r');
+
+       pos = in.seek(-2, IO::S_END);
+       EXPECT_EQUAL(pos, 10);
+       c = in.get();
+       EXPECT_EQUAL(c, 'x');
+}
+
+void FileTests::file_not_found()
+{
+       IO::File in("does.not.exist");
+}
+
+void FileTests::invalid_access()
+{
+       IO::File in("test.txt");
+       in.write("foo\n");
+}