paleolimbot commented on code in PR #658:
URL: https://github.com/apache/arrow-adbc/pull/658#discussion_r1186871397
##########
c/driver/postgresql/postgresql_test.cc:
##########
@@ -97,6 +96,63 @@ class PostgresConnectionTest : public ::testing::Test,
protected:
PostgresQuirks quirks_;
};
+
+TEST_F(PostgresConnectionTest, GetInfoMetadata) {
+ ASSERT_THAT(AdbcConnectionNew(&connection, &error), IsOkStatus(&error));
+ ASSERT_THAT(AdbcConnectionInit(&connection, &database, &error),
IsOkStatus(&error));
+
+ adbc_validation::StreamReader reader;
+ std::vector<uint32_t> info = {
+ ADBC_INFO_DRIVER_NAME,
+ ADBC_INFO_DRIVER_VERSION,
+ ADBC_INFO_VENDOR_NAME,
+ ADBC_INFO_VENDOR_VERSION,
+ };
+ ASSERT_THAT(AdbcConnectionGetInfo(&connection, info.data(), info.size(),
+ &reader.stream.value, &error),
+ IsOkStatus(&error));
+ ASSERT_NO_FATAL_FAILURE(reader.GetSchema());
+
+ std::vector<uint32_t> seen;
+ while (true) {
+ ASSERT_NO_FATAL_FAILURE(reader.Next());
+ if (!reader.array->release) break;
+
+ for (int64_t row = 0; row < reader.array->length; row++) {
+ ASSERT_FALSE(ArrowArrayViewIsNull(reader.array_view->children[0], row));
+ const uint32_t code =
+ reader.array_view->children[0]->buffer_views[1].data.as_uint32[row];
+ seen.push_back(code);
+
+ switch (code) {
+ case ADBC_INFO_DRIVER_NAME: {
+ const char* expected = "ADBC PostgreSQL Driver";
Review Comment:
If I were writing this test, I would probably start with
`reader.array_view->children[1]->children[0]->buffer_views[2].data.as_char,
len);` too. The downside of that is that it will crash instead of give a nice
error if it's not true and that it's not too readable. Maybe:
```
int child_index = 1; // Always true?
struct ArrowArrayView* child = array_view.children[child_index];
ArrowStringView val = ArrowArrayViewGetStringUnsafe(child, 0);
EXPECT_EQ("ADBC PostgreSQL Driver", std::string(val.data, val.size_bytes));"
```
is somewhere in between?
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