extracted statements tests

Author: jraymakers

bindings/test/extracted_statements.test.ts

@@ -0,0 +1,112 @@
+import duckdb from '@duckdb/node-bindings';
+import { expect, suite, test } from 'vitest';
+import { expectResult } from './utils/expectResult';
+import { INTEGER } from './utils/expectedLogicalTypes';
+import { data } from './utils/expectedVectors';
+import { withConnection } from './utils/withConnection';
+
+suite('extracted statements', () => {
+  test('no statements', async () => {
+    await withConnection(async (connection) => {
+      const { extracted_statements, statement_count } = await duckdb.extract_statements(connection, '');
+      try {
+        expect(statement_count).toBe(0);
+      } finally {
+        duckdb.destroy_extracted(extracted_statements);
+      }
+    });
+  });
+  test('error', async () => {
+    await withConnection(async (connection) => {
+      const { extracted_statements, statement_count } = await duckdb.extract_statements(connection, 'x');
+      try {
+        expect(statement_count).toBe(0);
+        expect(duckdb.extract_statements_error(extracted_statements)).toBe('Parser Error: syntax error at or near "x"');
+      } finally {
+        duckdb.destroy_extracted(extracted_statements);
+      }
+    });
+  });
+  test('one statement', async () => {
+    await withConnection(async (connection) => {
+      const { extracted_statements, statement_count } = await duckdb.extract_statements(connection, 'select 11 as a');
+      try {
+        expect(statement_count).toBe(1);
+        const prepared = await duckdb.prepare_extracted_statement(connection, extracted_statements, 0);
+        const result = await duckdb.execute_prepared(prepared);
+        try {
+          await expectResult(result, {
+            columns: [
+              { name: 'a', logicalType: INTEGER },
+            ],
+            chunks: [
+              { rowCount: 1, vectors: [data(4, [true], [11])]},
+            ],
+          });
+        } finally {
+          duckdb.destroy_result(result);
+        }
+      } finally {
+        duckdb.destroy_extracted(extracted_statements);
+      }
+    });
+  });
+  test('multiple statements', async () => {
+    await withConnection(async (connection) => {
+      const { extracted_statements, statement_count } = await duckdb.extract_statements(connection,
+        'select 11 as a; select 22 as b; select 33 as c'
+      );
+      try {
+        expect(statement_count).toBe(3);
+
+        const prepared0 = await duckdb.prepare_extracted_statement(connection, extracted_statements, 0);
+        const result0 = await duckdb.execute_prepared(prepared0);
+        try {
+          await expectResult(result0, {
+            columns: [
+              { name: 'a', logicalType: INTEGER },
+            ],
+            chunks: [
+              { rowCount: 1, vectors: [data(4, [true], [11])]},
+            ],
+          });
+        } finally {
+          duckdb.destroy_result(result0);
+        }
+
+        const prepared1 = await duckdb.prepare_extracted_statement(connection, extracted_statements, 1);
+        const result1 = await duckdb.execute_prepared(prepared1);
+        try {
+          await expectResult(result1, {
+            columns: [
+              { name: 'b', logicalType: INTEGER },
+            ],
+            chunks: [
+              { rowCount: 1, vectors: [data(4, [true], [22])]},
+            ],
+          });
+        } finally {
+          duckdb.destroy_result(result1);
+        }
+
+        const prepared2 = await duckdb.prepare_extracted_statement(connection, extracted_statements, 2);
+        const result2 = await duckdb.execute_prepared(prepared2);
+        try {
+          await expectResult(result2, {
+            columns: [
+              { name: 'c', logicalType: INTEGER },
+            ],
+            chunks: [
+              { rowCount: 1, vectors: [data(4, [true], [33])]},
+            ],
+          });
+        } finally {
+          duckdb.destroy_result(result2);
+        }
+
+      } finally {
+        duckdb.destroy_extracted(extracted_statements);
+      }
+    });
+  });
+});