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// Copyright 2016 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.

package main

import (
    "io"
    "io/ioutil"
    "net/http"
    "os"
    "testing"
)

// TestCLISwarmUp tests that running 'swarm up' makes the resulting file
// available from all nodes via the HTTP API
func TestCLISwarmUp(t *testing.T) {
    t.Skip("flaky test")

    // start 3 node cluster
    t.Log("starting 3 node cluster")
    cluster := newTestCluster(t, 3)
    defer cluster.Shutdown()

    // create a tmp file
    tmp, err := ioutil.TempFile("", "swarm-test")
    assertNil(t, err)
    defer tmp.Close()
    defer os.Remove(tmp.Name())
    _, err = io.WriteString(tmp, "data")
    assertNil(t, err)

    // upload the file with 'swarm up' and expect a hash
    t.Log("uploading file with 'swarm up'")
    up := runSwarm(t, "--bzzapi", cluster.Nodes[0].URL, "up", tmp.Name())
    _, matches := up.ExpectRegexp(`[a-f\d]{64}`)
    up.ExpectExit()
    hash := matches[0]
    t.Logf("file uploaded with hash %s", hash)

    // get the file from the HTTP API of each node
    for _, node := range cluster.Nodes {
        t.Logf("getting file from %s", node.Name)
        res, err := http.Get(node.URL + "/bzz:/" + hash)
        assertNil(t, err)
        assertHTTPResponse(t, res, http.StatusOK, "data")
    }
}

func assertNil(t *testing.T, err error) {
    if err != nil {
        t.Fatal(err)
    }
}

func assertHTTPResponse(t *testing.T, res *http.Response, expectedStatus int, expectedBody string) {
    defer res.Body.Close()
    if res.StatusCode != expectedStatus {
        t.Fatalf("expected HTTP status %d, got %s", expectedStatus, res.Status)
    }
    data, err := ioutil.ReadAll(res.Body)
    assertNil(t, err)
    if string(data) != expectedBody {
        t.Fatalf("expected HTTP body %q, got %q", expectedBody, data)
    }
}