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var test = require('tape');
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var fs = require ('fs');
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var join = require('path').join;
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var couch_sample_file = join(__dirname, 'fixtures','couch_sample.json');
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var JSONStream = require('../');
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var fixture = {
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obj: {
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one: 1,
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two: 2,
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three: 3
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}
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};
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function assertFixtureKeys(stream, t) {
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var keys = [];
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var values = [];
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stream.on('data', function(data) {
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keys.push(data.key);
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values.push(data.value);
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});
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stream.on('end', function() {
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t.deepEqual(keys, ['one', 'two', 'three']);
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t.deepEqual(values, [1,2,3]);
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t.end();
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});
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stream.write(JSON.stringify(fixture));
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stream.end();
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}
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test('keys via string', function(t) {
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var stream = JSONStream.parse('obj.$*');
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assertFixtureKeys(stream, t);
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});
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test('keys via array', function(t) {
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var stream = JSONStream.parse(['obj',{emitKey: true}]);
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assertFixtureKeys(stream, t);
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});
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test('path via array', function(t) {
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var stream = JSONStream.parse(['obj',{emitPath: true}]);
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var paths = [];
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var values = [];
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stream.on('data', function(data) {
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console.log(JSON.stringify(data));
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paths.push(data.path);
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values.push(data.value);
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});
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stream.on('end', function() {
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t.deepEqual(paths, [['obj', 'one'], ['obj', 'two'], ['obj', 'three']]);
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t.deepEqual(values, [1,2,3]);
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t.end();
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});
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stream.write(JSON.stringify(fixture));
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stream.end();
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});
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test('advanced keys', function(t) {
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var advanced = fs.readFileSync(couch_sample_file);
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var stream = JSONStream.parse(['rows', true, 'doc', {emitKey: true}]);
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var keys = [];
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var values = [];
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stream.on('data', function(data) {
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keys.push(data.key);
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values.push(data.value);
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});
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stream.on('end', function() {
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t.deepEqual(keys, [
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'_id', '_rev', 'hello',
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'_id', '_rev', 'hello'
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]);
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t.deepEqual(values, [
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"change1_0.6995461115147918", "1-e240bae28c7bb3667f02760f6398d508", 1,
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"change2_0.6995461115147918", "1-13677d36b98c0c075145bb8975105153", 2
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]);
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t.end();
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});
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stream.write(advanced);
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stream.end();
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});
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test('parent keys', function(t) {
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var stream = JSONStream.parse('$*');
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var d = null;
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stream.on('data', function(data) {
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if(d) t.fail('should only be called once');
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d = data;
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});
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stream.on('end', function() {
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t.deepEqual(d,{
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key: 'obj',
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value: fixture.obj
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});
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t.end();
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});
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stream.write(JSON.stringify(fixture));
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stream.end();
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})
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