90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
package app
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import (
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"fmt"
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"net/http"
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"net/http/httptest"
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"os"
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"path"
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"regexp"
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"testing"
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)
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func TestDownloadfile(t *testing.T) {
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var ts *httptest.Server
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cases := []struct {
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name string
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handler func(http.ResponseWriter, *http.Request)
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url string
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filepath string
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wantContent string
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wantError string
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}{
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{
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name: "download success",
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handler: func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, "helmfile")
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},
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wantContent: "helmfile",
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},
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{
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name: "download 404",
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handler: func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(404)
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fmt.Fprint(w, "not found")
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},
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wantError: "download .*? error, code: 404",
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},
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{
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name: "download 500",
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handler: func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(500)
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fmt.Fprint(w, "server error")
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},
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wantError: "download .*? error, code: 500",
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},
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{
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name: "download path error",
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handler: func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprint(w, "helmfile")
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},
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filepath: "abc/down.txt",
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wantError: "open .*? no such file or directory",
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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dir := t.TempDir()
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downfile := path.Join(dir, "down.txt")
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if c.filepath != "" {
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downfile = path.Join(dir, c.filepath)
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}
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ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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c.handler(w, r)
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}))
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defer ts.Close()
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url := ts.URL
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if c.url != "" {
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url = c.url
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}
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err := downloadfile(downfile, url)
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if c.wantError != "" {
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if err == nil {
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t.Errorf("download got no error, want error: %v", c.wantError)
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} else if matched, regexErr := regexp.MatchString(c.wantError, err.Error()); regexErr != nil || !matched {
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t.Errorf("download got error: %v, want error: %v", err, c.wantError)
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}
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return
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}
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content, err := os.ReadFile(downfile)
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if err != nil {
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t.Errorf("read download file error: %v", err)
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}
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if string(content) != c.wantContent {
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t.Errorf("download file content got: %v, want content: %v", string(content), c.wantContent)
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}
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})
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}
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}
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