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// 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.
couchTests.view_collation = function(debug) {
var db = new CouchDB("test_suite_db");
db.deleteDb();
db.createDb();
if (debug) debugger;
// NOTE, the values are already in their correct sort order. Consider this
// a specification of collation of json types.
var values = [];
// special values sort before all other types
values.push(null);
values.push(false);
values.push(true);
// then numbers
values.push(1);
values.push(2);
values.push(3.0);
values.push(4);
// then text, case sensitive
values.push("a");
values.push("A");
values.push("aa");
values.push("b");
values.push("B");
values.push("ba");
values.push("bb");
// then arrays. compared element by element until different.
// Longer arrays sort after their prefixes
values.push(["a"]);
values.push(["b"]);
values.push(["b","c"]);
values.push(["b","c", "a"]);
values.push(["b","d"]);
values.push(["b","d", "e"]);
// then object, compares each key value in the list until different.
// larger objects sort after their subset objects.
values.push({a:1});
values.push({a:2});
values.push({b:1});
values.push({b:2});
values.push({b:2, a:1}); // Member order does matter for collation.
// CouchDB preserves member order
// but doesn't require that clients will.
// (this test might fail if used with a js engine
// that doesn't preserve order)
values.push({b:2, c:2});
for (var i=0; i<values.length; i++) {
db.save({_id:(i).toString(), foo:values[i]});
}
var queryFun = function(doc) { emit(doc.foo, null); };
var rows = db.query(queryFun).rows;
for (i=0; i<values.length; i++) {
T(equals(rows[i].key, values[i]));
}
// everything has collated correctly. Now to check the descending output
rows = db.query(queryFun, null, {descending: true}).rows;
for (i=0; i<values.length; i++) {
T(equals(rows[i].key, values[values.length - 1 -i]));
}
// now check the key query args
for (i=1; i<values.length; i++) {
var queryOptions = {key:values[i]};
rows = db.query(queryFun, null, queryOptions).rows;
T(rows.length == 1 && equals(rows[0].key, values[i]));
}
// test inclusive_end=true (the default)
// the inclusive_end=true functionality is limited to endkey currently
// if you need inclusive_start=false for startkey, please do implement. ;)
var rows = db.query(queryFun, null, {endkey : "b", inclusive_end:true}).rows;
T(rows[rows.length-1].key == "b")
// descending=true
var rows = db.query(queryFun, null, {endkey : "b",
descending:true, inclusive_end:true}).rows;
T(rows[rows.length-1].key == "b")
// test inclusive_end=false
var rows = db.query(queryFun, null, {endkey : "b", inclusive_end:false}).rows;
T(rows[rows.length-1].key == "aa")
// descending=true
var rows = db.query(queryFun, null, {endkey : "b",
descending:true, inclusive_end:false}).rows;
T(rows[rows.length-1].key == "B")
// inclusive_end=false overrides endkey_docid
var rows = db.query(queryFun, null, {
endkey : "b", endkey_docid: "b",
inclusive_end:false}).rows;
T(rows[rows.length-1].key == "aa")
};
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