Get basic CSV parser operating.

1 files changed, 74 insertions, 0 deletions

diff --git a/test/test_csv.cpp b/test/test_csv.cpp
new file mode 100644
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--- /dev/null
+++ b/test/test_csv.cpp
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+/*
+ * libfud
+ * Copyright 2024 Dominick Allen
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "fud_csv.hpp"
+#include "fud_print.hpp"
+
+#include "gtest/gtest.h"
+
+namespace fud {
+
+const StringView happyCsvFilename{u8"fud-happy-test.csv"};
+
+const StringView happyData{
+    u8"foo,bar,baz\n"
+    u8"1,Unquoted Text,\"Quoted Text with embedded \"\" quote and embedded newline \n"
+    u8"see\"\n,,\"Prior two fields are empty\"\n"};
+
+auto writeHappyCsv() -> FudStatus
+{
+    auto fileResult{RegularFile::create(
+        happyCsvFilename,
+        FileAccessMode::Write,
+        OpenFlags{OpenFlagEnum::Truncate},
+        PermUserRwGroupRead,
+        false,
+        NullOpt)};
+    if (fileResult.isError()) {
+        debugPrint(u8"Error opening file: {}\n", FudStatusToString(fileResult.getError()));
+        return fileResult.takeError();
+    }
+    auto file{fileResult.takeOkay()};
+
+    auto writeResult = file.write(reinterpret_cast<const std::byte*>(happyData.data()), happyData.length());
+    if (writeResult.status != FudStatus::Success) {
+        return writeResult.status;
+    }
+
+    if (writeResult.bytesDrained != happyData.length()) {
+        return FudStatus::Failure;
+    }
+
+    return FudStatus::Success;
+}
+
+TEST(FudCsv, ParseCsvFromFilename)
+{
+    Csv csv{Csv::makeDefault()};
+
+    ASSERT_EQ(writeHappyCsv(), FudStatus::Success);
+
+    debugPrint(u8"Wrote happy data:\n-----\n{}\n-----\n", happyData);
+
+    auto parseStatus = Csv::parseFromFilename(csv, NullOpt, happyCsvFilename);
+    if (parseStatus != FudStatus::Success) {
+        debugPrint(u8"Error parsing file: {}\n", FudStatusToString(parseStatus));
+    }
+    ASSERT_EQ(parseStatus, FudStatus::Success);
+}
+
+} // namespace fud