test: increase code coverage

spec/download/download_spec.js

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+
+import download from 'bemuse/download'
+
+describe('download', function() {
+
+  it('resolves with correct type', function() {
+    return expect(download('/spec/download/fixtures/hello.txt').as('text'))
+      .to.eventually.match(/hello world/)
+  })
+
+  it('rejects for 404', function() {
+    return expect(download('/nonexistant').as('blob')).to.be.rejected
+  })
+
+  it('rejects for bad url', function() {
+    return expect(download('file:///nonexistant').as('blob')).to.be.rejected
+  })
+
+})

spec/download/fixtures/hello.txt

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+hello world

spec/progress/utils_spec.js

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+
+import Progress from 'bemuse/progress'
+import * as ProgressUtils from 'bemuse/progress/utils'
+
+describe('ProgressUtils', function() {
+
+  describe('.fixed', function() {
+    it('should report for fixed number of items', function() {
+      let progress = new Progress()
+      let advance = ProgressUtils.fixed(10, progress)
+      expect(progress.current).to.equal(0)
+      expect(progress.total).to.equal(10)
+      advance('wow')
+      expect(progress.current).to.equal(1)
+      expect(progress.total).to.equal(10)
+      expect(progress.extra).to.equal('wow')
+    })
+  })
+
+  describe('.wrapPromise', function() {
+    it('should report number of fulfilled promises', function() {
+      let progress = new Progress()
+      let f = ProgressUtils.wrapPromise(progress, promise => promise)
+      let a = f(new Promise(() => {}))
+      let b = f(Promise.resolve(1))
+      let c = f(Promise.reject(new Error('no')))
+      let d = f(Promise.resolve(3))
+      void a
+      void c
+      return Promise.all([b, d]).then(() => {
+        expect(progress.current).to.equal(2)
+        expect(progress.total).to.equal(4)
+      })
+    })
+  })
+
+  describe('.bind', function() {
+    it('should bind from one progress to another', function() {
+      let a = new Progress()
+      let b = new Progress()
+      a.report(10, 20)
+      ProgressUtils.bind(a, b)
+      expect(b.current).to.equal(10)
+      expect(b.total).to.equal(20)
+      a.report(15, 25)
+      expect(b.current).to.equal(15)
+      expect(b.total).to.equal(25)
+    })
+  })
+
+})

spec/resources/fixtures/b/metadata.json

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+{"files":[{"name":"do.mp3","ref":[0,0,30093]},{"name":"mi.mp3","ref":[0,30093,60186]},{"name":"sol.mp3","ref":[0,60186,90279]}],"refs":[{"path":"mp3.0.ea6087c3.bemuse","hash":"ea6087c3379bce007e50c3100b99b83c"}]}