83 lines
2.8 KiB
Go
83 lines
2.8 KiB
Go
package httpclientprovider
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import (
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"net/http"
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"testing"
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"github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
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"github.com/stretchr/testify/require"
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)
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func TestSetUserAgentMiddleware(t *testing.T) {
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t.Run("Without user agent set should return next http.RoundTripper", func(t *testing.T) {
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ctx := &testContext{}
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finalRoundTripper := ctx.createRoundTripper("finalrt")
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mw := SetUserAgentMiddleware("")
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rt := mw.CreateMiddleware(httpclient.Options{}, finalRoundTripper)
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require.NotNil(t, rt)
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middlewareName, ok := mw.(httpclient.MiddlewareName)
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require.True(t, ok)
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require.Equal(t, SetUserAgentMiddlewareName, middlewareName.MiddlewareName())
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req, err := http.NewRequest(http.MethodGet, "http://", nil)
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require.NoError(t, err)
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res, err := rt.RoundTrip(req)
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require.NoError(t, err)
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require.NotNil(t, res)
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if res.Body != nil {
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require.NoError(t, res.Body.Close())
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}
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require.Len(t, ctx.callChain, 1)
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require.ElementsMatch(t, []string{"finalrt"}, ctx.callChain)
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})
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t.Run("With user agent set should apply HTTP headers to the request", func(t *testing.T) {
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ctx := &testContext{}
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finalRoundTripper := ctx.createRoundTripper("final")
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mw := SetUserAgentMiddleware("Grafana/8.0.0")
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rt := mw.CreateMiddleware(httpclient.Options{}, finalRoundTripper)
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require.NotNil(t, rt)
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middlewareName, ok := mw.(httpclient.MiddlewareName)
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require.True(t, ok)
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require.Equal(t, SetUserAgentMiddlewareName, middlewareName.MiddlewareName())
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req, err := http.NewRequest(http.MethodGet, "http://", nil)
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require.NoError(t, err)
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res, err := rt.RoundTrip(req)
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require.NoError(t, err)
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require.NotNil(t, res)
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if res.Body != nil {
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require.NoError(t, res.Body.Close())
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}
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require.Len(t, ctx.callChain, 1)
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require.ElementsMatch(t, []string{"final"}, ctx.callChain)
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require.Equal(t, "Grafana/8.0.0", req.Header.Get("User-Agent"))
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})
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t.Run("With user agent set, but request already has User-Agent header set should not apply HTTP headers to the request", func(t *testing.T) {
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ctx := &testContext{}
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finalRoundTripper := ctx.createRoundTripper("final")
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mw := SetUserAgentMiddleware("Grafana/8.0.0")
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rt := mw.CreateMiddleware(httpclient.Options{}, finalRoundTripper)
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require.NotNil(t, rt)
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middlewareName, ok := mw.(httpclient.MiddlewareName)
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require.True(t, ok)
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require.Equal(t, SetUserAgentMiddlewareName, middlewareName.MiddlewareName())
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req, err := http.NewRequest(http.MethodGet, "http://", nil)
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require.NoError(t, err)
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req.Header.Set("User-Agent", "ua")
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res, err := rt.RoundTrip(req)
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require.NoError(t, err)
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require.NotNil(t, res)
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if res.Body != nil {
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require.NoError(t, res.Body.Close())
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}
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require.Len(t, ctx.callChain, 1)
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require.ElementsMatch(t, []string{"final"}, ctx.callChain)
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require.Equal(t, "ua", req.Header.Get("User-Agent"))
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})
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}
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