test(config,git,logger): add some test functions

internal/config/config.go

@@ -7,6 +7,15 @@ import (
 	"github.com/rs/zerolog"
 )
 
+var (
+	ErrInvalidGrafanaURL = errors.New("invalid grafana URL, must not be blank")
+	ErrInvalidAuthToken  = errors.New("invalid auth token for grafana, must not be blank")
+	ErrInvalidRepoURL    = errors.New("invalid repo url for git, must not be blank")
+	ErrInvalidGitUser    = errors.New("invalid username for git, must not be blank")
+	ErrInvalidGitPass    = errors.New("invalid password for git, must not be blank")
+	ErrInvalidBranchName = errors.New("invalid branch name for git, must not be blank")
+)
+
 type Config struct {
 	Debug        bool
 	ForceCommits bool
@@ -29,27 +38,27 @@ func (c *Config) Validate() []error {
 	var errs []error
 
 	if c.GrafanaURL == "" {
-		errs = append(errs, errors.New("invalid grafana URL, must not be blank"))
+		errs = append(errs, ErrInvalidGrafanaURL)
 	}
 
 	if c.GrafanaToken == "" {
-		errs = append(errs, errors.New("invalid auth token for grafana, must not be blank"))
+		errs = append(errs, ErrInvalidAuthToken)
 	}
 
 	if c.GitRepo == "" {
-		errs = append(errs, errors.New("invalid repo url for git, must not be blank"))
+		errs = append(errs, ErrInvalidRepoURL)
 	}
 
 	if c.GitUser == "" {
-		errs = append(errs, errors.New("invalid username for git, must not be blank"))
+		errs = append(errs, ErrInvalidGitUser)
 	}
 
 	if c.GitPass == "" {
-		errs = append(errs, errors.New("invalid password for git, must not be blank"))
+		errs = append(errs, ErrInvalidGitPass)
 	}
 
 	if c.GitBranch == "" {
-		errs = append(errs, errors.New("invalid branch name for git, must not be blank"))
+		errs = append(errs, ErrInvalidBranchName)
 	}
 
 	return errs

internal/config/config_test.go

@@ -0,0 +1,52 @@
+package config_test
+
+import (
+	"testing"
+
+	"git.ar21.de/yolokube/grafana-backuper/internal/config"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestConfig_Validate_MissingFields(t *testing.T) {
+	cfg := config.Config{}
+
+	errs := cfg.Validate()
+	assert.Len(t, errs, 6) // Expecting 6 errors since all required fields are missing
+
+	require.ErrorIs(t, errs[0], config.ErrInvalidGrafanaURL)
+	require.ErrorIs(t, errs[1], config.ErrInvalidAuthToken)
+	require.ErrorIs(t, errs[2], config.ErrInvalidRepoURL)
+	require.ErrorIs(t, errs[3], config.ErrInvalidGitUser)
+	require.ErrorIs(t, errs[4], config.ErrInvalidGitPass)
+	require.ErrorIs(t, errs[5], config.ErrInvalidBranchName)
+}
+
+func TestConfig_Validate_AllFieldsPresent(t *testing.T) {
+	cfg := config.Config{
+		GrafanaURL:   "http://grafana.example.com",
+		GrafanaToken: "sometoken",
+		GitRepo:      "https://github.com/user/repo",
+		GitUser:      "username",
+		GitPass:      "password",
+		GitBranch:    "main",
+	}
+
+	errs := cfg.Validate()
+	assert.Empty(t, errs) // No errors should be returned when all fields are valid
+}
+
+func TestConfig_Validate_PartiallyPopulated(t *testing.T) {
+	cfg := config.Config{
+		GrafanaURL: "http://grafana.example.com",
+		GitRepo:    "https://github.com/user/repo",
+		GitUser:    "username",
+	}
+
+	errs := cfg.Validate()
+	assert.Len(t, errs, 3) // Expecting 3 errors for missing GrafanaToken, GitPass, and GitBranch
+
+	require.ErrorIs(t, errs[0], config.ErrInvalidGrafanaURL)
+	require.ErrorIs(t, errs[1], config.ErrInvalidGitPass)
+	require.ErrorIs(t, errs[2], config.ErrInvalidBranchName)
+}