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| 1 | +import { describe, it } from 'node:test'; |
| 2 | +import { strict as assert } from 'node:assert'; |
| 3 | + |
| 4 | +/** |
| 5 | + * Test the format output logic for view query --format option |
| 6 | + */ |
| 7 | + |
| 8 | +/** |
| 9 | + * Format a record for 'lines' output mode |
| 10 | + * @param {object} record - The record to format |
| 11 | + * @returns {string} The formatted line |
| 12 | + */ |
| 13 | +function formatLinesOutput(record) { |
| 14 | + const values = Object.values(record); |
| 15 | + if (values.length === 1) { |
| 16 | + // Single field: output as-is (string) or JSON (other types) |
| 17 | + const val = values[0]; |
| 18 | + return typeof val === 'string' ? val : JSON.stringify(val); |
| 19 | + } else { |
| 20 | + // Multiple fields: tab-separated |
| 21 | + return values.map(v => |
| 22 | + typeof v === 'string' ? v : JSON.stringify(v) |
| 23 | + ).join('\t'); |
| 24 | + } |
| 25 | +} |
| 26 | + |
| 27 | +describe('view query --format', () => { |
| 28 | + describe('ndjson format', () => { |
| 29 | + it('outputs valid JSON per line', () => { |
| 30 | + const record = { name: 'lodash', count: 114 }; |
| 31 | + const output = JSON.stringify(record); |
| 32 | + |
| 33 | + assert.equal(output, '{"name":"lodash","count":114}'); |
| 34 | + assert.doesNotThrow(() => JSON.parse(output)); |
| 35 | + }); |
| 36 | + |
| 37 | + it('handles nested objects', () => { |
| 38 | + const record = { name: 'react', meta: { versions: ['18.0.0', '18.1.0'] } }; |
| 39 | + const output = JSON.stringify(record); |
| 40 | + |
| 41 | + const parsed = JSON.parse(output); |
| 42 | + assert.deepEqual(parsed.meta.versions, ['18.0.0', '18.1.0']); |
| 43 | + }); |
| 44 | + }); |
| 45 | + |
| 46 | + describe('lines format', () => { |
| 47 | + it('outputs plain string for single string field', () => { |
| 48 | + const record = { name: 'lodash' }; |
| 49 | + const output = formatLinesOutput(record); |
| 50 | + |
| 51 | + assert.equal(output, 'lodash'); |
| 52 | + // Should NOT be quoted |
| 53 | + assert.ok(!output.startsWith('"')); |
| 54 | + assert.ok(!output.startsWith('{')); |
| 55 | + }); |
| 56 | + |
| 57 | + it('outputs JSON for single non-string field (array)', () => { |
| 58 | + const record = { versions: ['1.0.0', '2.0.0'] }; |
| 59 | + const output = formatLinesOutput(record); |
| 60 | + |
| 61 | + assert.equal(output, '["1.0.0","2.0.0"]'); |
| 62 | + assert.doesNotThrow(() => JSON.parse(output)); |
| 63 | + }); |
| 64 | + |
| 65 | + it('outputs JSON for single non-string field (number)', () => { |
| 66 | + const record = { count: 42 }; |
| 67 | + const output = formatLinesOutput(record); |
| 68 | + |
| 69 | + assert.equal(output, '42'); |
| 70 | + }); |
| 71 | + |
| 72 | + it('outputs tab-separated for multiple fields', () => { |
| 73 | + const record = { name: 'lodash', count: 114 }; |
| 74 | + const output = formatLinesOutput(record); |
| 75 | + |
| 76 | + assert.equal(output, 'lodash\t114'); |
| 77 | + assert.ok(output.includes('\t')); |
| 78 | + }); |
| 79 | + |
| 80 | + it('handles mixed string and non-string in multi-field', () => { |
| 81 | + const record = { name: 'react', versions: ['18.0.0', '18.1.0'], count: 2 }; |
| 82 | + const output = formatLinesOutput(record); |
| 83 | + |
| 84 | + const parts = output.split('\t'); |
| 85 | + assert.equal(parts.length, 3); |
| 86 | + assert.equal(parts[0], 'react'); |
| 87 | + assert.equal(parts[1], '["18.0.0","18.1.0"]'); |
| 88 | + assert.equal(parts[2], '2'); |
| 89 | + }); |
| 90 | + |
| 91 | + it('handles empty string values', () => { |
| 92 | + const record = { name: '' }; |
| 93 | + const output = formatLinesOutput(record); |
| 94 | + |
| 95 | + assert.equal(output, ''); |
| 96 | + }); |
| 97 | + |
| 98 | + it('handles null values in multi-field', () => { |
| 99 | + const record = { name: 'test', value: null }; |
| 100 | + const output = formatLinesOutput(record); |
| 101 | + |
| 102 | + assert.equal(output, 'test\tnull'); |
| 103 | + }); |
| 104 | + }); |
| 105 | + |
| 106 | + describe('json format', () => { |
| 107 | + it('outputs valid JSON array', () => { |
| 108 | + const results = [ |
| 109 | + { name: 'lodash', count: 114 }, |
| 110 | + { name: 'express', count: 50 } |
| 111 | + ]; |
| 112 | + const output = JSON.stringify(results, null, 2); |
| 113 | + |
| 114 | + const parsed = JSON.parse(output); |
| 115 | + assert.ok(Array.isArray(parsed)); |
| 116 | + assert.equal(parsed.length, 2); |
| 117 | + }); |
| 118 | + |
| 119 | + it('handles empty results', () => { |
| 120 | + const results = []; |
| 121 | + const output = JSON.stringify(results, null, 2); |
| 122 | + |
| 123 | + const parsed = JSON.parse(output); |
| 124 | + assert.deepEqual(parsed, []); |
| 125 | + }); |
| 126 | + |
| 127 | + it('handles single result', () => { |
| 128 | + const results = [{ name: 'lodash' }]; |
| 129 | + const output = JSON.stringify(results, null, 2); |
| 130 | + |
| 131 | + const parsed = JSON.parse(output); |
| 132 | + assert.equal(parsed.length, 1); |
| 133 | + assert.equal(parsed[0].name, 'lodash'); |
| 134 | + }); |
| 135 | + }); |
| 136 | + |
| 137 | + describe('format validation', () => { |
| 138 | + it('recognizes valid formats', () => { |
| 139 | + const validFormats = ['ndjson', 'jsonl', 'lines', 'json']; |
| 140 | + |
| 141 | + for (const format of validFormats) { |
| 142 | + const normalized = format === 'ndjson' ? 'jsonl' : format; |
| 143 | + assert.ok( |
| 144 | + ['jsonl', 'lines', 'json'].includes(normalized), |
| 145 | + `${format} should be valid` |
| 146 | + ); |
| 147 | + } |
| 148 | + }); |
| 149 | + |
| 150 | + it('normalizes ndjson to jsonl', () => { |
| 151 | + const format = 'ndjson'; |
| 152 | + const normalized = format === 'ndjson' ? 'jsonl' : format; |
| 153 | + assert.equal(normalized, 'jsonl'); |
| 154 | + }); |
| 155 | + |
| 156 | + it('rejects invalid formats', () => { |
| 157 | + const invalidFormats = ['csv', 'xml', 'yaml', 'tsv', '']; |
| 158 | + |
| 159 | + for (const format of invalidFormats) { |
| 160 | + const normalized = format === 'ndjson' ? 'jsonl' : format; |
| 161 | + assert.ok( |
| 162 | + !['jsonl', 'lines', 'json'].includes(normalized), |
| 163 | + `${format} should be invalid` |
| 164 | + ); |
| 165 | + } |
| 166 | + }); |
| 167 | + }); |
| 168 | + |
| 169 | + describe('backwards compatibility', () => { |
| 170 | + it('--collect maps to json format', () => { |
| 171 | + const collect = true; |
| 172 | + const explicitFormat = undefined; |
| 173 | + |
| 174 | + const format = collect ? 'json' : (explicitFormat || 'ndjson'); |
| 175 | + assert.equal(format, 'json'); |
| 176 | + }); |
| 177 | + |
| 178 | + it('defaults to ndjson when no flags set', () => { |
| 179 | + const collect = false; |
| 180 | + const explicitFormat = undefined; |
| 181 | + |
| 182 | + const format = collect ? 'json' : (explicitFormat || 'ndjson'); |
| 183 | + assert.equal(format, 'ndjson'); |
| 184 | + }); |
| 185 | + |
| 186 | + it('explicit --format overrides when --collect not set', () => { |
| 187 | + const collect = false; |
| 188 | + const explicitFormat = 'lines'; |
| 189 | + |
| 190 | + const format = collect ? 'json' : (explicitFormat || 'ndjson'); |
| 191 | + assert.equal(format, 'lines'); |
| 192 | + }); |
| 193 | + }); |
| 194 | +}); |
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