func Test_CompositionHandler_PositiveCaseWithCache(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
a := assert.New(t)
contentFetcherFactory := func(r *http.Request) FetchResultSupplier {
return MockFetchResultSupplier{
&FetchResult{
Def: NewFetchDefinition("/foo"),
Content: &MemoryContent{
body: map[string]Fragment{
"": StringFragment("Hello World\n"),
},
},
Hash: "hashString",
},
}
}
ch := NewCompositionHandlerWithCache(ContentFetcherFactory(contentFetcherFactory), cache.NewCache("my-cache", 100, 100, time.Millisecond))
resp := httptest.NewRecorder()
r, _ := http.NewRequest("GET", "http://example.com", nil)
ch.cache.Set("hashString", "", 1, nil)
ch.ServeHTTP(resp, r)
_, foundInCache := ch.cache.Get("hashString")
a.True(foundInCache)
}
func Test_CompositionHandler_ErrorInMergingWithCache(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
a := assert.New(t)
contentFetcherFactory := func(r *http.Request) FetchResultSupplier {
return MockFetchResultSupplier{
&FetchResult{
Def: NewFetchDefinition("/foo"),
Content: &MemoryContent{},
Err: nil,
Hash: "hashString",
},
}
}
aggregator := NewCompositionHandlerWithCache(ContentFetcherFactory(contentFetcherFactory), cache.NewCache("my-cache", 100, 100, time.Millisecond))
aggregator.cache.Set("hashString", "", 1, nil)
aggregator.contentMergerFactory = func(jsonData map[string]interface{}) ContentMerger {
merger := NewMockContentMerger(ctrl)
merger.EXPECT().AddContent(gomock.Any(), 0)
merger.EXPECT().GetHtml().Return(nil, errors.New("an error"))
return merger
}
resp := httptest.NewRecorder()
r, _ := http.NewRequest("GET", "http://example.com", nil)
aggregator.ServeHTTP(resp, r)
_, foundInCache := aggregator.cache.Get("hashString")
a.False(foundInCache)
a.Equal("Internal Server Error: an error\n", string(resp.Body.Bytes()))
a.Equal(500, resp.Code)
}