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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
'use strict';
var Metadata = require('../src/metadata.js');
var assert = require('assert');
describe('Metadata', function() {
var metadata;
beforeEach(function() {
metadata = new Metadata();
});
describe('#set', function() {
it('Only accepts string values for non "-bin" keys', function() {
assert.throws(function() {
metadata.set('key', new Buffer('value'));
});
assert.doesNotThrow(function() {
metadata.set('key', 'value');
});
});
it('Only accepts Buffer values for "-bin" keys', function() {
assert.throws(function() {
metadata.set('key-bin', 'value');
});
assert.doesNotThrow(function() {
metadata.set('key-bin', new Buffer('value'));
});
});
it('Rejects invalid keys', function() {
assert.throws(function() {
metadata.set('key$', 'value');
});
assert.throws(function() {
metadata.set('', 'value');
});
});
it('Rejects values with non-ASCII characters', function() {
assert.throws(function() {
metadata.set('key', 'résumé');
});
});
it('Saves values that can be retrieved', function() {
metadata.set('key', 'value');
assert.deepEqual(metadata.get('key'), ['value']);
});
it('Overwrites previous values', function() {
metadata.set('key', 'value1');
metadata.set('key', 'value2');
assert.deepEqual(metadata.get('key'), ['value2']);
});
it('Normalizes keys', function() {
metadata.set('Key', 'value1');
assert.deepEqual(metadata.get('key'), ['value1']);
metadata.set('KEY', 'value2');
assert.deepEqual(metadata.get('key'), ['value2']);
});
});
describe('#add', function() {
it('Only accepts string values for non "-bin" keys', function() {
assert.throws(function() {
metadata.add('key', new Buffer('value'));
});
assert.doesNotThrow(function() {
metadata.add('key', 'value');
});
});
it('Only accepts Buffer values for "-bin" keys', function() {
assert.throws(function() {
metadata.add('key-bin', 'value');
});
assert.doesNotThrow(function() {
metadata.add('key-bin', new Buffer('value'));
});
});
it('Rejects invalid keys', function() {
assert.throws(function() {
metadata.add('key$', 'value');
});
assert.throws(function() {
metadata.add('', 'value');
});
});
it('Saves values that can be retrieved', function() {
metadata.add('key', 'value');
assert.deepEqual(metadata.get('key'), ['value']);
});
it('Combines with previous values', function() {
metadata.add('key', 'value1');
metadata.add('key', 'value2');
assert.deepEqual(metadata.get('key'), ['value1', 'value2']);
});
it('Normalizes keys', function() {
metadata.add('Key', 'value1');
assert.deepEqual(metadata.get('key'), ['value1']);
metadata.add('KEY', 'value2');
assert.deepEqual(metadata.get('key'), ['value1', 'value2']);
});
});
describe('#remove', function() {
it('clears values from a key', function() {
metadata.add('key', 'value');
metadata.remove('key');
assert.deepEqual(metadata.get('key'), []);
});
it('Normalizes keys', function() {
metadata.add('key', 'value');
metadata.remove('KEY');
assert.deepEqual(metadata.get('key'), []);
});
});
describe('#get', function() {
beforeEach(function() {
metadata.add('key', 'value1');
metadata.add('key', 'value2');
metadata.add('key-bin', new Buffer('value'));
});
it('gets all values associated with a key', function() {
assert.deepEqual(metadata.get('key'), ['value1', 'value2']);
});
it('Normalizes keys', function() {
assert.deepEqual(metadata.get('KEY'), ['value1', 'value2']);
});
it('returns an empty list for non-existent keys', function() {
assert.deepEqual(metadata.get('non-existent-key'), []);
});
it('returns Buffers for "-bin" keys', function() {
assert(metadata.get('key-bin')[0] instanceof Buffer);
});
});
describe('#getMap', function() {
it('gets a map of keys to values', function() {
metadata.add('key1', 'value1');
metadata.add('Key2', 'value2');
metadata.add('KEY3', 'value3');
assert.deepEqual(metadata.getMap(),
{key1: 'value1',
key2: 'value2',
key3: 'value3'});
});
});
describe('#clone', function() {
it('retains values from the original', function() {
metadata.add('key', 'value');
var copy = metadata.clone();
assert.deepEqual(copy.get('key'), ['value']);
});
it('Does not see newly added values', function() {
metadata.add('key', 'value1');
var copy = metadata.clone();
metadata.add('key', 'value2');
assert.deepEqual(copy.get('key'), ['value1']);
});
it('Does not add new values to the original', function() {
metadata.add('key', 'value1');
var copy = metadata.clone();
copy.add('key', 'value2');
assert.deepEqual(metadata.get('key'), ['value1']);
});
});
});
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