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Add setStubs/unsetStubs to domstubs to support testing

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Do not directly export to global. Instead, export all stubs in domstubs.js and
add a method setStubs to assign all exported stubs to a namespace. Then replace
the import domstubs with an explicit call to this setStubs method.  Also added
unsetStubs for undoing the changes. This is done to allow unit testing of the
SVG backend without namespace pollution.
This commit is contained in:
Rob Wu 2017-07-06 11:55:18 +02:00
parent 94f1dde07d
commit 9caaaf3a91
2 changed files with 22 additions and 5 deletions
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25
examples/node/domstubs.js
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@ -41,7 +41,7 @@ function xmlEncode(s){
return buf;
}
global.btoa = function btoa(chars) {
function btoa(chars) {
var digits =
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
var buffer = '';
@ -57,7 +57,7 @@ global.btoa = function btoa(chars) {
digits.charAt(d3) + digits.charAt(d4));
}
return buffer;
};
}
function DOMElement(name) {
this.nodeName = name;
@ -127,7 +127,7 @@ DOMElement.prototype = {
},
}
global.document = {
const document = {
childNodes : [],
get currentScript() {
@ -171,4 +171,21 @@ Image.prototype = {
}
}
global.Image = Image;
exports.btoa = btoa;
exports.document = document;
exports.Image = Image;
var exported_symbols = Object.keys(exports);
exports.setStubs = function(namespace) {
exported_symbols.forEach(function(key) {
console.assert(!(key in namespace), 'property should not be set: ' + key);
namespace[key] = exports[key];
});
};
exports.unsetStubs = function(namespace) {
exported_symbols.forEach(function(key) {
console.assert(key in namespace, 'property should be set: ' + key);
delete namespace[key];
});
};