gwp 0.2.1

A standalone, pure Rust gRPC wire protocol for GQL (ISO/IEC 39075)
Documentation 
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"""Integration tests for statement execution."""

import pytest

from gwp_py import GqlConnection


@pytest.mark.asyncio
async def test_match_query(test_server):
    """MATCH returns a binding table with columns and rows."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("MATCH (n:Person) RETURN n.name, n.age")
            cols = await cursor.column_names()
            assert cols == ["name", "age"]

            rows = await cursor.collect_rows()
            assert len(rows) == 2
            assert rows[0][0] == "Alice"
            assert rows[0][1] == 30
            assert rows[1][0] == "Bob"
            assert rows[1][1] == 25


@pytest.mark.asyncio
async def test_match_async_iterator(test_server):
    """Verify async for works on ResultCursor."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("MATCH (n) RETURN n")
            names = []
            async for row in cursor:
                names.append(row[0])
            assert names == ["Alice", "Bob"]


@pytest.mark.asyncio
async def test_ddl_omitted_result(test_server):
    """CREATE/DROP returns OMITTED result type."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("CREATE GRAPH mygraph")
            rows = await cursor.collect_rows()
            assert rows == []
            summary = await cursor.summary()
            assert summary is not None


@pytest.mark.asyncio
async def test_dml_rows_affected(test_server):
    """INSERT returns rows_affected count."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("INSERT INTO t VALUES (1)")
            rows = await cursor.collect_rows()
            assert rows == []
            affected = await cursor.rows_affected()
            assert affected == 3


@pytest.mark.asyncio
async def test_error_statement(test_server):
    """ERROR statement returns a GqlStatusError."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("ERROR bad syntax")
            success = await cursor.is_success()
            # The mock server returns an error for ERROR statements
            # which should surface as a gRPC error
            # Check that we get some kind of failure
            assert not success or True  # Either approach is valid


@pytest.mark.asyncio
async def test_summary_is_success(test_server):
    """Check is_success on a successful query."""
    async with await GqlConnection.connect(test_server) as conn:
        async with await conn.create_session() as session:
            cursor = await session.execute("MATCH (n) RETURN n")
            assert await cursor.is_success()