|
| 1 | +package versioncheck |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "encoding/json" |
| 6 | + "net/http" |
| 7 | + "net/http/httptest" |
| 8 | + "testing" |
| 9 | +) |
| 10 | + |
| 11 | +func TestIsNewer(t *testing.T) { |
| 12 | + tests := []struct { |
| 13 | + name string |
| 14 | + local string |
| 15 | + remote string |
| 16 | + want bool |
| 17 | + }{ |
| 18 | + {"same version", "0.2.5", "0.2.5", false}, |
| 19 | + {"same with v prefix", "v0.2.5", "v0.2.5", false}, |
| 20 | + {"mixed v prefix", "0.2.5", "v0.2.5", false}, |
| 21 | + {"mixed v prefix reverse", "v0.2.5", "0.2.5", false}, |
| 22 | + {"remote is newer", "0.2.5", "0.3.0", true}, |
| 23 | + {"remote is older", "0.3.0", "0.2.5", true}, // IsNewer only checks inequality |
| 24 | + {"dev build", "dev", "0.2.5", true}, |
| 25 | + {"empty local", "", "0.2.5", true}, |
| 26 | + {"dev with v remote", "dev", "v0.2.5", true}, |
| 27 | + } |
| 28 | + |
| 29 | + for _, tt := range tests { |
| 30 | + t.Run(tt.name, func(t *testing.T) { |
| 31 | + got := IsNewer(tt.local, tt.remote) |
| 32 | + if got != tt.want { |
| 33 | + t.Errorf("IsNewer(%q, %q) = %v, want %v", tt.local, tt.remote, got, tt.want) |
| 34 | + } |
| 35 | + }) |
| 36 | + } |
| 37 | +} |
| 38 | + |
| 39 | +func TestLatest(t *testing.T) { |
| 40 | + t.Run("success", func(t *testing.T) { |
| 41 | + release := ReleaseInfo{ |
| 42 | + TagName: "v0.3.0", |
| 43 | + HTMLURL: "https://github.com/ysya/runscaler/releases/tag/v0.3.0", |
| 44 | + } |
| 45 | + |
| 46 | + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 47 | + w.Header().Set("Content-Type", "application/json") |
| 48 | + json.NewEncoder(w).Encode(release) |
| 49 | + })) |
| 50 | + defer srv.Close() |
| 51 | + |
| 52 | + origTransport := http.DefaultTransport |
| 53 | + http.DefaultTransport = &testTransport{url: srv.URL, transport: origTransport} |
| 54 | + defer func() { http.DefaultTransport = origTransport }() |
| 55 | + |
| 56 | + got, err := Latest(context.Background()) |
| 57 | + if err != nil { |
| 58 | + t.Fatalf("Latest() error = %v", err) |
| 59 | + } |
| 60 | + if got.TagName != release.TagName { |
| 61 | + t.Errorf("TagName = %q, want %q", got.TagName, release.TagName) |
| 62 | + } |
| 63 | + if got.HTMLURL != release.HTMLURL { |
| 64 | + t.Errorf("HTMLURL = %q, want %q", got.HTMLURL, release.HTMLURL) |
| 65 | + } |
| 66 | + }) |
| 67 | + |
| 68 | + t.Run("server error", func(t *testing.T) { |
| 69 | + srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { |
| 70 | + w.WriteHeader(http.StatusInternalServerError) |
| 71 | + })) |
| 72 | + defer srv.Close() |
| 73 | + |
| 74 | + origTransport := http.DefaultTransport |
| 75 | + http.DefaultTransport = &testTransport{url: srv.URL, transport: origTransport} |
| 76 | + defer func() { http.DefaultTransport = origTransport }() |
| 77 | + |
| 78 | + _, err := Latest(context.Background()) |
| 79 | + if err == nil { |
| 80 | + t.Fatal("Latest() expected error for 500 response") |
| 81 | + } |
| 82 | + }) |
| 83 | + |
| 84 | + t.Run("cancelled context", func(t *testing.T) { |
| 85 | + ctx, cancel := context.WithCancel(context.Background()) |
| 86 | + cancel() |
| 87 | + |
| 88 | + _, err := Latest(ctx) |
| 89 | + if err == nil { |
| 90 | + t.Fatal("Latest() expected error for cancelled context") |
| 91 | + } |
| 92 | + }) |
| 93 | +} |
| 94 | + |
| 95 | +// testTransport redirects all requests to the test server URL. |
| 96 | +type testTransport struct { |
| 97 | + url string |
| 98 | + transport http.RoundTripper |
| 99 | +} |
| 100 | + |
| 101 | +func (t *testTransport) RoundTrip(req *http.Request) (*http.Response, error) { |
| 102 | + req = req.Clone(req.Context()) |
| 103 | + req.URL.Scheme = "http" |
| 104 | + req.URL.Host = t.url[len("http://"):] |
| 105 | + return t.transport.RoundTrip(req) |
| 106 | +} |
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