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    <title>suffixLabels_test</title>
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    <script type="text/javascript" src="/lib/jasmine/3.4.0/jasmine-html.js"></script>
    <script type="text/javascript" src="/lib/jasmine/3.4.0/boot.js"></script>

    <script type="module">

     import { SuffixLabels } from './suffixLabels.js';

     describe("_tailSegments", function() {
       it("returns right amount", function() {
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 0)).toEqual('');
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 1)).toEqual('bb');
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 2)).toEqual('a/bb');
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 3)).toEqual('foo/a/bb');
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 4)).toEqual('/foo/a/bb');
         expect(SuffixLabels._tailSegments('http://foo/a/bb', 5)).toEqual('http://foo/a/bb');
       });
       it("ok with trailing slash", function() {
         expect(SuffixLabels._tailSegments('http://foo/', 0)).toEqual('');
         expect(SuffixLabels._tailSegments('http://foo/', 1)).toEqual('');
         expect(SuffixLabels._tailSegments('http://foo/', 2)).toEqual('foo/');
       });
     });

     describe("suffixLabels", function() {
       const fakeNode = (uri) => { return { nominalValue: uri } };

       it("returns whole url segments", function() {
         const suf = new SuffixLabels();
         suf._planDisplayForUri('http://a/b/c/dd');
         suf._planDisplayForUri('http://a/b/c/ee');

         expect(suf.getLabelForNode(fakeNode('http://a/b/c/dd'))).toEqual('dd');
         expect(suf.getLabelForNode(fakeNode('http://a/b/c/ee'))).toEqual('ee');
       });

       it("doesn't treat a repeated uri as a name clash", function() {
         const suf = new SuffixLabels();
         suf._planDisplayForUri('http://a/b/c');
         suf._planDisplayForUri('http://a/b/c');

         expect(suf.getLabelForNode(fakeNode('http://a/b/c'))).toEqual('c');
       });

       it("moves to two segments when needed", function() {
         const suf = new SuffixLabels();
         suf._planDisplayForUri('http://a/b/c/d');
         suf._planDisplayForUri('http://a/b/f/d');

         expect(suf.getLabelForNode(fakeNode('http://a/b/c/d'))).toEqual('c/d');
         expect(suf.getLabelForNode(fakeNode('http://a/b/f/d'))).toEqual('f/d');
       });

       it("is ok with clashes at different segment positions", function() {
         const suf = new SuffixLabels();
         suf._planDisplayForUri('http://z/z/z/a/b/c');
         suf._planDisplayForUri('http://a/b/c');

         expect(suf.getLabelForNode(fakeNode('http://z/z/z/a/b/c'))).toEqual('z/a/b/c');
         expect(suf.getLabelForNode(fakeNode('http://a/b/c'))).toEqual('/a/b/c');
       });

       it("uses appropriately long suffixes per uri", function() {
         const suf = new SuffixLabels();
         suf._planDisplayForUri('http://a/b/c/d/e');
         suf._planDisplayForUri('http://a/b/f/d/e');
         suf._planDisplayForUri('http://a/b/c/g');
         suf._planDisplayForUri('http://a/z');

         expect(suf.getLabelForNode(fakeNode('http://a/b/c/d/e'))).toEqual('c/d/e');
         expect(suf.getLabelForNode(fakeNode('http://a/b/f/d/e'))).toEqual('f/d/e');
         expect(suf.getLabelForNode(fakeNode('http://a/b/c/g'))).toEqual('g');
         expect(suf.getLabelForNode(fakeNode('http://a/z'))).toEqual('z');
       });

     });
    </script>

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author	drewp@bigasterisk.com
date	Wed, 04 Dec 2019 00:09:15 -0800
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