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Add new command to show logs of detached instances
This change adds a new command, `show logs`, to show log entries of detached application instances. Closes #123
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David Pinheiro
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Sep 13, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| package app_test | ||
|
|
||
| import ( | ||
| "io/ioutil" | ||
| "os" | ||
| "path/filepath" | ||
| "testing" | ||
|
|
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| "github.com/davrodpin/mole/app" | ||
| ) | ||
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| var ( | ||
| // home is a temporary directory that acts as the user home directory. | ||
| // It is used on most tests to validates files created by Mole and their | ||
| // contents. | ||
| home string | ||
| ) | ||
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| func TestDetachedInstanceFileLocations(t *testing.T) { | ||
| id := "TestDetachedInstanceFileLocations" | ||
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| di, err := app.NewDetachedInstance(id) | ||
| if err != nil { | ||
| t.Errorf("error creating a new detached instance: %v", err) | ||
| } | ||
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| if _, err := os.Stat(di.LogFile); os.IsNotExist(err) { | ||
| t.Errorf("log file does not exist: %v", err) | ||
| } | ||
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| if _, err := os.Stat(di.PidFile); os.IsNotExist(err) { | ||
| t.Errorf("pid file does not exist: %v", err) | ||
| } | ||
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| lfl, err := app.GetLogFileLocation(id) | ||
| if err != nil { | ||
| t.Errorf("error retrieving log file location: %v", err) | ||
| } | ||
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| if _, err := os.Stat(lfl); os.IsNotExist(err) { | ||
| t.Errorf("log file does not exist: %v", err) | ||
| } | ||
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| } | ||
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| func TestDetachedInstanceGeneratedId(t *testing.T) { | ||
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| di, err := app.NewDetachedInstance("") | ||
| if err != nil { | ||
| t.Errorf("error creating a new detached instance: %v", err) | ||
| } | ||
|
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| if di.Id == "" { | ||
| t.Errorf("detached instance id is empty") | ||
| } | ||
| } | ||
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| func TestDetachedInstanceAlreadyRunning(t *testing.T) { | ||
| id := "TestDetachedInstanceAlreadyRunning" | ||
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| os.MkdirAll(filepath.Join(home, ".mole", id), 0755) | ||
| pidFileLocation := filepath.Join(home, ".mole", id, app.InstancePidFile) | ||
| ioutil.WriteFile(pidFileLocation, []byte("1234"), 0644) | ||
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| _, err := app.NewDetachedInstance(id) | ||
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| if err == nil { | ||
| t.Errorf("error expected but got nil") | ||
| } | ||
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| } | ||
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| func TestShowLogs(t *testing.T) { | ||
| id := "TestDetachedInstanceAlreadyRunning" | ||
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| os.MkdirAll(filepath.Join(home, ".mole", id), 0755) | ||
| logFileLocation := filepath.Join(home, ".mole", id, app.InstanceLogFile) | ||
| ioutil.WriteFile(logFileLocation, []byte("first log message\nsecond log message\nthird log message\n"), 0644) | ||
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| err := app.ShowLogs(id, false) | ||
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| if err != nil { | ||
| t.Errorf("error showing logs: %v", err) | ||
| } | ||
|
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| } | ||
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| func TestMain(m *testing.M) { | ||
| var err error | ||
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| home, err = ioutil.TempDir("", "mole") | ||
| if err != nil { | ||
| os.Exit(1) | ||
| } | ||
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| os.Setenv("HOME", home) | ||
| os.Setenv("USERPROFILE", home) | ||
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| code := m.Run() | ||
|
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| os.RemoveAll(home) | ||
|
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| os.Exit(code) | ||
| } |
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