package version

import (
	"testing"
)

func TestGetVersion(t *testing.T) {
	// Save original values
	originalVersion := Version
	originalGitCommit := GitCommit
	originalBuildDate := BuildDate
	
	// Reset values
	Version = "0.1.0"
	GitCommit = ""
	BuildDate = ""
	
	// Test with just version
	result := GetVersion()
	expected := "0.1.0"
	if result != expected {
		t.Errorf("Expected '%s', got '%s'", expected, result)
	}
	
	// Test with version and git commit
	GitCommit = "abc123"
	result = GetVersion()
	expected = "0.1.0 (abc123)"
	if result != expected {
		t.Errorf("Expected '%s', got '%s'", expected, result)
	}
	
	// Test with version, git commit, and build date
	BuildDate = "2023-01-01"
	result = GetVersion()
	expected = "0.1.0 (abc123) built on 2023-01-01"
	if result != expected {
		t.Errorf("Expected '%s', got '%s'", expected, result)
	}
	
	// Test with version and build date (no git commit)
	GitCommit = ""
	result = GetVersion()
	expected = "0.1.0 built on 2023-01-01"
	if result != expected {
		t.Errorf("Expected '%s', got '%s'", expected, result)
	}
	
	// Restore original values
	Version = originalVersion
	GitCommit = originalGitCommit
	BuildDate = originalBuildDate
}