it('should preserve the case of the first call', () => {
const headers = new Headers();
headers.append('FOO', 'bar');
headers.append('foo', 'baz');
expect(JSON.stringify(headers)).toEqual('{"FOO":["bar","baz"]}');
});
it('should append a value to the list', () => {
const headers = new Headers();
headers.append('foo', 'bar');
headers.append('foo', 'baz');
expect(headers.get('foo')).toEqual('bar');
expect(headers.getAll('foo')).toEqual(['bar', 'baz']);
});
it('should keep the last value when initialized from an object', () => {
const headers = new Headers({
'foo': 'first',
'fOo': 'second',
});
expect(headers.getAll('foo')).toEqual(['second']);
});
it('should not alter the values of a provided header template', () => {
// Spec at https://fetch.spec.whatwg.org/#concept-headers-fill
// test for https://github.com/angular/angular/issues/6845
const firstHeaders = new Headers();
const secondHeaders = new Headers(firstHeaders);
secondHeaders.append('Content-Type', 'image/jpeg');
expect(firstHeaders.has('Content-Type')).toEqual(false);
});
it('should conform to spec', () => {
const httpHeaders = {
'Content-Type': 'image/jpeg',
'Accept-Charset': 'utf-8',
'X-My-Custom-Header': 'Zeke are cool',
};
const secondHeaders = new Headers(httpHeaders);
const secondHeadersObj = new Headers(secondHeaders);
expect(secondHeadersObj.get('Content-Type')).toEqual('image/jpeg');
});
it('should be case insensitive', () => {
const headers = new Headers();
headers.set('foo', 'baz');
expect(headers.has('foo')).toEqual(true);
headers.delete('foo');
expect(headers.has('foo')).toEqual(false);
headers.set('foo', 'baz');
expect(headers.has('foo')).toEqual(true);
headers.delete('FOO');
expect(headers.has('foo')).toEqual(false);
});
it('should preserve the list of values', () => {
const src = new Headers();
src.append('foo', 'a');
src.append('foo', 'b');
src.append('foo', 'c');
const dst = new Headers(src);
expect(dst.getAll('foo')).toEqual(src.getAll('foo'));
});
it('should parse a response header string', () => {
const response = `Date: Fri, 20 Nov 2015 01:45:26 GMT\n` +
`Content-Type: application/json; charset=utf-8\n` +
`Transfer-Encoding: chunked\n` +
`Connection: keep-alive`;
const headers = Headers.fromResponseHeaderString(response);
expect(headers.get('Date')).toEqual('Fri, 20 Nov 2015 01:45:26 GMT');
expect(headers.get('Content-Type')).toEqual('application/json; charset=utf-8');
expect(headers.get('Transfer-Encoding')).toEqual('chunked');
expect(headers.get('Connection')).toEqual('keep-alive');
});
it('should clear all values and re-set for the provided key', () => {
const headers = new Headers({'foo': 'bar'});
expect(headers.get('foo')).toEqual('bar');
headers.set('foo', 'baz');
expect(headers.get('foo')).toEqual('baz');
headers.set('fOO', 'bat');
expect(headers.get('foo')).toEqual('bat');
});
it('should preserve cases after cloning', () => {
const headers = new Headers();
headers.set('fOo', 'baz');
headers.set('foo', 'bat');
expect(JSON.stringify(new Headers(headers))).toEqual('{"fOo":["bat"]}');
});
