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Merge pull request #11 from jraymakers/jray/add-tokenize-to-node-clie…
…nt-api add tokenize to node client api
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| import * as assert from 'assert'; | ||
| import * as duckdb from '..'; | ||
|
|
||
| describe('tokenize', function () { | ||
| it('should return correct tokens for a single statement', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize('select 1;'); | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 7, 8], | ||
| types: [duckdb.TokenType.KEYWORD, duckdb.TokenType.NUMERIC_CONSTANT, duckdb.TokenType.OPERATOR] | ||
| }); | ||
| }); | ||
| it('should return correct tokens for a multiple statements', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize('select 1; select 2;'); | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 7, 8, 10, 17, 18], | ||
| types: [ | ||
| duckdb.TokenType.KEYWORD, duckdb.TokenType.NUMERIC_CONSTANT, duckdb.TokenType.OPERATOR, | ||
| duckdb.TokenType.KEYWORD, duckdb.TokenType.NUMERIC_CONSTANT, duckdb.TokenType.OPERATOR | ||
| ] | ||
| }); | ||
| }); | ||
| it('should return no tokens for an empty string', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize(''); | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [], | ||
| types: [] | ||
| }); | ||
| }); | ||
| it('should handle quoted semicolons in string constants', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize(`select ';';`); | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 7, 10], | ||
| types: [duckdb.TokenType.KEYWORD, duckdb.TokenType.STRING_CONSTANT, duckdb.TokenType.OPERATOR] | ||
| }); | ||
| }); | ||
| it('should handle quoted semicolons in identifiers', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize(`from ";";`); | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 5, 8], | ||
| types: [duckdb.TokenType.KEYWORD, duckdb.TokenType.IDENTIFIER, duckdb.TokenType.OPERATOR] | ||
| }); | ||
| }); | ||
| it('should handle comments', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize(`select /* comment */ 1`); | ||
| // Note that the tokenizer doesn't return tokens for comments. | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 21], | ||
| types: [duckdb.TokenType.KEYWORD, duckdb.TokenType.NUMERIC_CONSTANT] | ||
| }); | ||
| }); | ||
| it('should handle invalid syntax', function () { | ||
| const db = new duckdb.Database(':memory:'); | ||
| const output = db.tokenize(`selec 1`); | ||
| // The misspelled keyword is scanned as an identifier. | ||
| assert.deepStrictEqual(output, { | ||
| offsets: [0, 6], | ||
| types: [duckdb.TokenType.IDENTIFIER, duckdb.TokenType.NUMERIC_CONSTANT] | ||
| }); | ||
| }); | ||
| it('should support inverse TokenType mapping', function () { | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.IDENTIFIER], "IDENTIFIER"); | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.NUMERIC_CONSTANT], "NUMERIC_CONSTANT"); | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.STRING_CONSTANT], "STRING_CONSTANT"); | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.OPERATOR], "OPERATOR"); | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.KEYWORD], "KEYWORD"); | ||
| assert.equal(duckdb.TokenType[duckdb.TokenType.COMMENT], "COMMENT"); | ||
| }); | ||
| }); |