mirror of https://github.com/buster-so/buster.git
678 lines
23 KiB
TypeScript
678 lines
23 KiB
TypeScript
import { afterEach, describe, expect } from 'vitest';
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import { DataSource } from '../../../src/data-source';
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import type { DataSourceConfig } from '../../../src/data-source';
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import { DataSourceType } from '../../../src/types/credentials';
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import type { SnowflakeCredentials } from '../../../src/types/credentials';
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import type { ColumnStatistics, Table, TableStatistics } from '../../../src/types/introspection';
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import { TEST_TIMEOUT, skipIfNoCredentials, testConfig } from '../../setup';
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function createSnowflakeCredentials(): SnowflakeCredentials {
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if (
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!testConfig.snowflake.account_id ||
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!testConfig.snowflake.warehouse_id ||
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!testConfig.snowflake.username ||
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!testConfig.snowflake.password ||
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!testConfig.snowflake.default_database
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) {
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throw new Error('Missing required Snowflake credentials');
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}
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return {
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type: DataSourceType.Snowflake,
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account_id: testConfig.snowflake.account_id,
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warehouse_id: testConfig.snowflake.warehouse_id,
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username: testConfig.snowflake.username,
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password: testConfig.snowflake.password,
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default_database: testConfig.snowflake.default_database,
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default_schema: testConfig.snowflake.default_schema,
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role: testConfig.snowflake.role,
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};
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}
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function validateTableStatisticsStructure(stats: TableStatistics, firstTable: Table) {
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// Verify basic table statistics structure
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expect(stats).toHaveProperty('table', firstTable.name);
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expect(stats).toHaveProperty('schema', firstTable.schema);
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expect(stats).toHaveProperty('database', firstTable.database);
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expect(stats).toHaveProperty('columnStatistics');
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expect(stats).toHaveProperty('lastUpdated');
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expect(Array.isArray(stats.columnStatistics)).toBe(true);
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expect(stats.lastUpdated).toBeInstanceOf(Date);
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}
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function validateColumnStatistics(columnStatistics: ColumnStatistics[]) {
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// Verify column statistics structure
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for (const colStat of columnStatistics) {
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expect(colStat).toHaveProperty('columnName');
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expect(typeof colStat.columnName).toBe('string');
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expect(colStat.columnName.length).toBeGreaterThan(0);
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// Verify distinct count is present and valid
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expect(colStat).toHaveProperty('distinctCount');
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if (colStat.distinctCount !== undefined) {
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expect(typeof colStat.distinctCount).toBe('number');
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expect(colStat.distinctCount).toBeGreaterThanOrEqual(0);
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}
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// Verify null count is present and valid
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expect(colStat).toHaveProperty('nullCount');
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if (colStat.nullCount !== undefined) {
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expect(typeof colStat.nullCount).toBe('number');
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expect(colStat.nullCount).toBeGreaterThanOrEqual(0);
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}
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// Verify min/max values are present (can be undefined for non-numeric/date columns)
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expect(colStat).toHaveProperty('minValue');
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expect(colStat).toHaveProperty('maxValue');
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// If min/max values exist, they should be valid
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if (colStat.minValue !== undefined && colStat.maxValue !== undefined) {
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// For numeric columns, min should be <= max
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if (typeof colStat.minValue === 'number' && typeof colStat.maxValue === 'number') {
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expect(colStat.minValue).toBeLessThanOrEqual(colStat.maxValue);
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}
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}
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}
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}
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async function validateColumnMapping(
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dataSource: DataSource,
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firstTable: Table,
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stats: TableStatistics
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) {
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// Verify we have statistics for each column in the table
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const columns = await dataSource.getColumns(
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'test-snowflake',
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firstTable.database,
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firstTable.schema,
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firstTable.name
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);
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if (columns.length > 0) {
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expect(stats.columnStatistics.length).toBe(columns.length);
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// Verify each column has corresponding statistics
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for (const column of columns) {
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const columnStat = stats.columnStatistics.find(
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(stat: ColumnStatistics) => stat.columnName === column.name
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);
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expect(columnStat).toBeDefined();
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}
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}
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}
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const testWithCredentials = skipIfNoCredentials('snowflake');
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describe('Snowflake DataSource Introspection', () => {
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let dataSource: DataSource;
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afterEach(async () => {
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if (dataSource) {
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await dataSource.close();
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}
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});
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testWithCredentials(
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'should introspect Snowflake databases',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const databases = await dataSource.getDatabases('test-snowflake');
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expect(Array.isArray(databases)).toBe(true);
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expect(databases.length).toBeGreaterThan(0);
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// Verify database structure
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for (const db of databases) {
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expect(db).toHaveProperty('name');
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expect(typeof db.name).toBe('string');
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expect(db.name.length).toBeGreaterThan(0);
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}
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},
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{ timeout: TEST_TIMEOUT }
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);
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testWithCredentials(
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'should introspect Snowflake schemas',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const schemas = await dataSource.getSchemas('test-snowflake');
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expect(Array.isArray(schemas)).toBe(true);
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expect(schemas.length).toBeGreaterThan(0);
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// Verify schema structure
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for (const schema of schemas) {
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expect(schema).toHaveProperty('name');
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expect(schema).toHaveProperty('database');
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expect(typeof schema.name).toBe('string');
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expect(typeof schema.database).toBe('string');
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}
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},
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{ timeout: TEST_TIMEOUT }
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);
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testWithCredentials(
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'should introspect Snowflake tables',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const tables = await dataSource.getTables('test-snowflake');
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expect(Array.isArray(tables)).toBe(true);
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// Verify table structure if tables exist
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for (const table of tables) {
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expect(table).toHaveProperty('name');
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expect(table).toHaveProperty('schema');
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expect(table).toHaveProperty('database');
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expect(table).toHaveProperty('type');
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expect(typeof table.name).toBe('string');
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expect(typeof table.schema).toBe('string');
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expect(typeof table.database).toBe('string');
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expect([
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'TABLE',
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'VIEW',
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'MATERIALIZED_VIEW',
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'EXTERNAL_TABLE',
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'TEMPORARY_TABLE',
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]).toContain(table.type);
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}
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},
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{ timeout: TEST_TIMEOUT }
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);
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testWithCredentials(
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'should introspect Snowflake columns',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const tables = await dataSource.getTables('test-snowflake');
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// If tables exist, test column introspection
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if (tables.length > 0) {
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const firstTable = tables[0];
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if (firstTable) {
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const columns = await dataSource.getColumns(
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'test-snowflake',
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firstTable.database,
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firstTable.schema,
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firstTable.name
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);
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expect(Array.isArray(columns)).toBe(true);
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// Verify column structure
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for (const column of columns) {
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expect(column).toHaveProperty('name');
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expect(column).toHaveProperty('dataType');
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expect(column).toHaveProperty('isNullable');
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expect(column).toHaveProperty('position');
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expect(typeof column.name).toBe('string');
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expect(typeof column.dataType).toBe('string');
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expect(typeof column.isNullable).toBe('boolean');
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expect(typeof column.position).toBe('number');
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expect(column.name.length).toBeGreaterThan(0);
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expect(column.dataType.length).toBeGreaterThan(0);
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expect(column.position).toBeGreaterThan(0);
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}
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}
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}
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},
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{ timeout: TEST_TIMEOUT }
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);
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testWithCredentials(
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'should introspect Snowflake views',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const views = await dataSource.getViews('test-snowflake');
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expect(Array.isArray(views)).toBe(true);
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// Verify view structure if views exist
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for (const view of views) {
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expect(view).toHaveProperty('name');
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expect(view).toHaveProperty('schema');
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expect(view).toHaveProperty('database');
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expect(typeof view.name).toBe('string');
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expect(typeof view.schema).toBe('string');
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expect(typeof view.database).toBe('string');
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expect(view.name.length).toBeGreaterThan(0);
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}
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},
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{ timeout: TEST_TIMEOUT }
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);
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testWithCredentials(
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'should get full Snowflake introspection',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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const introspection = await dataSource.getFullIntrospection('test-snowflake');
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expect(introspection).toHaveProperty('dataSourceName', 'test-snowflake');
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expect(introspection).toHaveProperty('dataSourceType');
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expect(introspection).toHaveProperty('databases');
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expect(introspection).toHaveProperty('schemas');
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expect(introspection).toHaveProperty('tables');
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expect(introspection).toHaveProperty('columns');
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expect(introspection).toHaveProperty('views');
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expect(introspection).toHaveProperty('introspectedAt');
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expect(introspection.introspectedAt).toBeInstanceOf(Date);
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// Verify data structure
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expect(Array.isArray(introspection.databases)).toBe(true);
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expect(Array.isArray(introspection.schemas)).toBe(true);
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expect(Array.isArray(introspection.tables)).toBe(true);
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expect(Array.isArray(introspection.columns)).toBe(true);
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expect(Array.isArray(introspection.views)).toBe(true);
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},
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{ timeout: 120000 }
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);
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describe('Snowflake Filtering Tests', () => {
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testWithCredentials(
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'should filter by database only',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Get full introspection with database filter
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const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
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databases: ['DBT'],
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});
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// Verify only DBT database is returned
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expect(filteredIntrospection.databases.some((db) => db.name === 'DBT')).toBe(true);
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const databaseNames = new Set(filteredIntrospection.databases.map((db) => db.name));
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expect(databaseNames.has('DBT')).toBe(true);
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// Verify all schemas belong to DBT database
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for (const schema of filteredIntrospection.schemas) {
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expect(schema.database).toBe('DBT');
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}
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// Verify all tables belong to DBT database
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for (const table of filteredIntrospection.tables) {
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expect(table.database).toBe('DBT');
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}
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// Verify all columns belong to DBT database
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for (const column of filteredIntrospection.columns) {
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expect(column.database).toBe('DBT');
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}
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// Verify all views belong to DBT database
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for (const view of filteredIntrospection.views) {
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expect(view.database).toBe('DBT');
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}
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},
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{ timeout: 120000 }
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);
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testWithCredentials(
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'should filter by schema only',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Get full introspection with schema filter
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const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
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schemas: ['REVENUE'],
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});
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// Verify only REVENUE schema is returned
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const revenueSchemas = filteredIntrospection.schemas.filter((s) => s.name === 'REVENUE');
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expect(revenueSchemas.length).toBeGreaterThan(0);
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expect(filteredIntrospection.schemas.every((s) => s.name === 'REVENUE')).toBe(true);
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// Verify all tables belong to REVENUE schema
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for (const table of filteredIntrospection.tables) {
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expect(table.schema).toBe('REVENUE');
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}
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// Verify all columns belong to tables in REVENUE schema
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for (const column of filteredIntrospection.columns) {
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expect(column.schema).toBe('REVENUE');
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}
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// Verify all views belong to REVENUE schema
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for (const view of filteredIntrospection.views) {
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expect(view.schema).toBe('REVENUE');
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}
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// Verify databases are filtered to only those containing REVENUE schema
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const databasesWithRevenue = new Set(revenueSchemas.map((s) => s.database));
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for (const database of filteredIntrospection.databases) {
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expect(databasesWithRevenue.has(database.name)).toBe(true);
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}
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},
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{ timeout: 120000 }
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);
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testWithCredentials(
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'should filter by both database and schema',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Get full introspection with both filters
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const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
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databases: ['DBT'],
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schemas: ['REVENUE'],
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});
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// Verify only DBT database is returned
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expect(filteredIntrospection.databases.some((db) => db.name === 'DBT')).toBe(true);
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// Verify only REVENUE schema in DBT database is returned
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expect(filteredIntrospection.schemas.length).toBeGreaterThan(0);
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for (const schema of filteredIntrospection.schemas) {
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expect(schema.name).toBe('REVENUE');
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expect(schema.database).toBe('DBT');
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}
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// Verify all tables belong to DBT.REVENUE
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for (const table of filteredIntrospection.tables) {
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expect(table.database).toBe('DBT');
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expect(table.schema).toBe('REVENUE');
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}
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// Verify all columns belong to DBT.REVENUE tables
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for (const column of filteredIntrospection.columns) {
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expect(column.database).toBe('DBT');
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expect(column.schema).toBe('REVENUE');
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}
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// Verify all views belong to DBT.REVENUE
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for (const view of filteredIntrospection.views) {
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expect(view.database).toBe('DBT');
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expect(view.schema).toBe('REVENUE');
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}
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},
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{ timeout: 180000 }
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);
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testWithCredentials(
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'should handle non-existent database filter',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Get full introspection with non-existent database filter
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const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
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databases: ['NONEXISTENT_DATABASE'],
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});
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// Verify empty results
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expect(filteredIntrospection.databases.length).toBe(0);
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expect(filteredIntrospection.schemas.length).toBe(0);
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expect(filteredIntrospection.tables.length).toBe(0);
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expect(filteredIntrospection.columns.length).toBe(0);
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expect(filteredIntrospection.views.length).toBe(0);
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},
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{ timeout: 120000 }
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);
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testWithCredentials(
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'should handle non-existent schema filter',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Get full introspection with non-existent schema filter
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const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
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schemas: ['NONEXISTENT_SCHEMA'],
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});
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// Verify empty results for schemas and dependent objects
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expect(filteredIntrospection.schemas.length).toBe(0);
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expect(filteredIntrospection.tables.length).toBe(0);
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expect(filteredIntrospection.columns.length).toBe(0);
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expect(filteredIntrospection.views.length).toBe(0);
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// Databases are filtered to only those containing the schema
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expect(filteredIntrospection.databases.length).toBe(0);
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},
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{ timeout: 120000 }
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);
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testWithCredentials(
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'should throw error for empty filter arrays',
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async () => {
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const config: DataSourceConfig = {
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name: 'test-snowflake',
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type: DataSourceType.Snowflake,
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credentials: createSnowflakeCredentials(),
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};
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dataSource = new DataSource({ dataSources: [config] });
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// Test empty databases array
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await expect(
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dataSource.getFullIntrospection('test-snowflake', { databases: [] })
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).rejects.toThrow('Database filter array is empty');
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// Test empty schemas array
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await expect(
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dataSource.getFullIntrospection('test-snowflake', { schemas: [] })
|
|
).rejects.toThrow('Schema filter array is empty');
|
|
|
|
// Test empty tables array
|
|
await expect(
|
|
dataSource.getFullIntrospection('test-snowflake', { tables: [] })
|
|
).rejects.toThrow('Table filter array is empty');
|
|
},
|
|
{ timeout: 120000 }
|
|
);
|
|
|
|
testWithCredentials(
|
|
'should handle case-sensitive filtering in Snowflake',
|
|
async () => {
|
|
const config: DataSourceConfig = {
|
|
name: 'test-snowflake',
|
|
type: DataSourceType.Snowflake,
|
|
credentials: createSnowflakeCredentials(),
|
|
};
|
|
|
|
dataSource = new DataSource({ dataSources: [config] });
|
|
|
|
// Test with incorrect case for 'REVENUE' schema (lowercase)
|
|
const filteredIntrospection = await dataSource.getFullIntrospection('test-snowflake', {
|
|
schemas: ['revenue'],
|
|
});
|
|
|
|
// Snowflake is case-sensitive for quoted identifiers
|
|
// This should return no results since 'revenue' != 'REVENUE'
|
|
expect(filteredIntrospection.schemas.length).toBe(0);
|
|
expect(filteredIntrospection.tables.length).toBe(0);
|
|
expect(filteredIntrospection.columns.length).toBe(0);
|
|
},
|
|
{ timeout: 120000 }
|
|
);
|
|
});
|
|
|
|
testWithCredentials(
|
|
'should test Snowflake connection',
|
|
async () => {
|
|
const config: DataSourceConfig = {
|
|
name: 'test-snowflake',
|
|
type: DataSourceType.Snowflake,
|
|
credentials: createSnowflakeCredentials(),
|
|
};
|
|
|
|
dataSource = new DataSource({ dataSources: [config] });
|
|
|
|
const connectionResult = await dataSource.testDataSource('test-snowflake');
|
|
expect(connectionResult).toBe(true);
|
|
},
|
|
TEST_TIMEOUT
|
|
);
|
|
|
|
testWithCredentials(
|
|
'should get Snowflake table statistics',
|
|
async () => {
|
|
const config: DataSourceConfig = {
|
|
name: 'test-snowflake',
|
|
type: DataSourceType.Snowflake,
|
|
credentials: createSnowflakeCredentials(),
|
|
};
|
|
|
|
dataSource = new DataSource({ dataSources: [config] });
|
|
|
|
const tables = await dataSource.getTables('test-snowflake');
|
|
|
|
// If tables exist, test statistics
|
|
if (tables.length > 0) {
|
|
const firstTable = tables[0];
|
|
if (firstTable) {
|
|
try {
|
|
const stats = await dataSource.getTableStatistics(
|
|
firstTable.database,
|
|
firstTable.schema,
|
|
firstTable.name,
|
|
'test-snowflake'
|
|
);
|
|
|
|
validateTableStatisticsStructure(stats, firstTable);
|
|
validateColumnStatistics(stats.columnStatistics);
|
|
await validateColumnMapping(dataSource, firstTable, stats);
|
|
} catch (error) {
|
|
// Some tables might not have statistics available or might be empty
|
|
console.warn('Table statistics not available for', firstTable.name, ':', error);
|
|
expect(error).toBeInstanceOf(Error);
|
|
}
|
|
}
|
|
}
|
|
},
|
|
TEST_TIMEOUT
|
|
);
|
|
|
|
testWithCredentials(
|
|
'should get column statistics for DBT.REVENUE.EMAIL_SMS_REVENUE table',
|
|
async () => {
|
|
const config: DataSourceConfig = {
|
|
name: 'test-snowflake',
|
|
type: DataSourceType.Snowflake,
|
|
credentials: createSnowflakeCredentials(),
|
|
};
|
|
|
|
dataSource = new DataSource({ dataSources: [config] });
|
|
|
|
const database = 'DBT';
|
|
const schema = 'REVENUE';
|
|
const table = 'EMAIL_SMS_REVENUE';
|
|
|
|
try {
|
|
const tables = await dataSource.getTables('test-snowflake');
|
|
const targetTable = tables.find(
|
|
(t) => t.database === database && t.schema === schema && t.name === table
|
|
);
|
|
|
|
if (!targetTable) {
|
|
console.warn(`Table ${database}.${schema}.${table} not found, skipping test`);
|
|
return;
|
|
}
|
|
const columns = await dataSource.getColumns('test-snowflake', database, schema, table);
|
|
expect(Array.isArray(columns)).toBe(true);
|
|
expect(columns.length).toBeGreaterThan(0);
|
|
for (const _column of columns) {
|
|
}
|
|
const introspector = await dataSource.introspect('test-snowflake');
|
|
expect(introspector).toBeDefined();
|
|
const _startTime = Date.now();
|
|
const columnStats = await introspector.getColumnStatistics(database, schema, table);
|
|
const _endTime = Date.now();
|
|
|
|
expect(Array.isArray(columnStats)).toBe(true);
|
|
expect(columnStats.length).toBe(columns.length);
|
|
for (const _stat of columnStats) {
|
|
}
|
|
|
|
// Validate column statistics structure (but skip validation if empty column names)
|
|
const hasValidColumnNames = columnStats.every(
|
|
(stat) => stat.columnName && stat.columnName.length > 0
|
|
);
|
|
if (hasValidColumnNames) {
|
|
validateColumnStatistics(columnStats);
|
|
} else {
|
|
console.warn('Skipping validateColumnStatistics due to empty column names');
|
|
}
|
|
|
|
// Verify each column has corresponding statistics
|
|
for (const column of columns) {
|
|
const columnStat = columnStats.find(
|
|
(stat: ColumnStatistics) => stat.columnName === column.name
|
|
);
|
|
expect(columnStat).toBeDefined();
|
|
expect(columnStat?.columnName).toBe(column.name);
|
|
}
|
|
for (const _stat of columnStats) {
|
|
}
|
|
} catch (error) {
|
|
console.warn(`Column statistics test failed for ${database}.${schema}.${table}:`, error);
|
|
expect(error).toBeInstanceOf(Error);
|
|
}
|
|
},
|
|
{ timeout: 120000 } // 2 minutes timeout
|
|
);
|
|
});
|