chore: add cmd test

cmd/cosmos-validators-exporter.go

@@ -30,11 +30,11 @@ func ExecuteValidateConfig(configPath string) {
 	filesystem := &OsFS{}
 	config, err := configPkg.GetConfig(configPath, filesystem)
 	if err != nil {
-		logger.GetDefaultLogger().Fatal().Err(err).Msg("Could not load config!")
+		logger.GetDefaultLogger().Panic().Err(err).Msg("Could not load config!")
 	}
 
 	if err := config.Validate(); err != nil {
-		logger.GetDefaultLogger().Fatal().Err(err).Msg("Config is invalid!")
+		logger.GetDefaultLogger().Panic().Err(err).Msg("Config is invalid!")
 	}
 
 	warnings := config.DisplayWarnings()
@@ -73,18 +73,14 @@ func main() {
 	}
 
 	rootCmd.PersistentFlags().StringVar(&ConfigPath, "config", "", "Config file path")
-	if err := rootCmd.MarkPersistentFlagRequired("config"); err != nil {
-		logger.GetDefaultLogger().Fatal().Err(err).Msg("Could not set flag as required")
-	}
+	_ = rootCmd.MarkPersistentFlagRequired("config")
 
 	validateConfigCmd.PersistentFlags().StringVar(&ConfigPath, "config", "", "Config file path")
-	if err := validateConfigCmd.MarkPersistentFlagRequired("config"); err != nil {
-		logger.GetDefaultLogger().Fatal().Err(err).Msg("Could not set flag as required")
-	}
+	_ = validateConfigCmd.MarkPersistentFlagRequired("config")
 
 	rootCmd.AddCommand(validateConfigCmd)
 
 	if err := rootCmd.Execute(); err != nil {
-		logger.GetDefaultLogger().Fatal().Err(err).Msg("Could not start application")
+		logger.GetDefaultLogger().Panic().Err(err).Msg("Could not start application")
 	}
 }

cmd/cosmos-validators-exporter_test.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+//nolint:paralleltest // disabled
+func TestValidateConfigNoConfigProvided(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			require.Fail(t, "Expected to have a panic here!")
+		}
+	}()
+
+	os.Args = []string{"cmd", "validate-config"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestValidateConfigFailedToLoad(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			require.Fail(t, "Expected to have a panic here!")
+		}
+	}()
+
+	os.Args = []string{"cmd", "validate-config", "--config", "../assets/config-not-found.toml"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestValidateConfigInvalid(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			require.Fail(t, "Expected to have a panic here!")
+		}
+	}()
+
+	os.Args = []string{"cmd", "validate-config", "--config", "../assets/config-invalid.toml"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestValidateConfigWithWarnings(t *testing.T) {
+	os.Args = []string{"cmd", "validate-config", "--config", "../assets/config-with-warnings.toml"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestValidateConfigValid(t *testing.T) {
+	os.Args = []string{"cmd", "validate-config", "--config", "../assets/config-valid.toml"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestStartNoConfigProvided(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			require.Fail(t, "Expected to have a panic here!")
+		}
+	}()
+
+	os.Args = []string{"cmd"}
+	main()
+	assert.True(t, true)
+}
+
+//nolint:paralleltest // disabled
+func TestStartConfigProvided(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			require.Fail(t, "Expected to have a panic here!")
+		}
+	}()
+
+	os.Args = []string{"cmd", "--config", "../assets/config-invalid.toml"}
+	main()
+	assert.True(t, true)
+}