initial: Syntrex extraction from sentinel-community (615 files)

internal/application/contextengine/config_test.go

@@ -0,0 +1,110 @@
+package contextengine
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	ctxdomain "github.com/sentinel-community/gomcp/internal/domain/context"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLoadConfig_FileNotExists(t *testing.T) {
+	cfg, err := LoadConfig("/nonexistent/path/context.json")
+	require.NoError(t, err)
+	assert.Equal(t, ctxdomain.DefaultTokenBudget, cfg.TokenBudget)
+	assert.True(t, cfg.Enabled)
+	assert.NotEmpty(t, cfg.SkipTools)
+}
+
+func TestLoadConfig_ValidFile(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "context.json")
+
+	content := `{
+		"token_budget": 500,
+		"max_facts": 15,
+		"recency_weight": 0.3,
+		"frequency_weight": 0.2,
+		"level_weight": 0.25,
+		"keyword_weight": 0.25,
+		"decay_half_life_hours": 48,
+		"enabled": true,
+		"skip_tools": ["health", "version"]
+	}`
+	err := os.WriteFile(path, []byte(content), 0o644)
+	require.NoError(t, err)
+
+	cfg, err := LoadConfig(path)
+	require.NoError(t, err)
+	assert.Equal(t, 500, cfg.TokenBudget)
+	assert.Equal(t, 15, cfg.MaxFacts)
+	assert.Equal(t, 0.3, cfg.RecencyWeight)
+	assert.Equal(t, 48.0, cfg.DecayHalfLifeHours)
+	assert.True(t, cfg.Enabled)
+	assert.Len(t, cfg.SkipTools, 2)
+	assert.True(t, cfg.ShouldSkip("health"))
+	assert.True(t, cfg.ShouldSkip("version"))
+	assert.False(t, cfg.ShouldSkip("search_facts"))
+}
+
+func TestLoadConfig_InvalidJSON(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "context.json")
+
+	err := os.WriteFile(path, []byte("{invalid json"), 0o644)
+	require.NoError(t, err)
+
+	_, err = LoadConfig(path)
+	assert.Error(t, err)
+}
+
+func TestLoadConfig_InvalidConfig(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "context.json")
+
+	content := `{"token_budget": 0, "max_facts": 5, "recency_weight": 0.5, "frequency_weight": 0.5, "level_weight": 0, "keyword_weight": 0, "decay_half_life_hours": 24, "enabled": true}`
+	err := os.WriteFile(path, []byte(content), 0o644)
+	require.NoError(t, err)
+
+	_, err = LoadConfig(path)
+	assert.Error(t, err, "should fail validation: token_budget=0")
+}
+
+func TestLoadConfig_OmittedSkipTools_UsesDefaults(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "context.json")
+
+	content := `{
+		"token_budget": 300,
+		"max_facts": 10,
+		"recency_weight": 0.25,
+		"frequency_weight": 0.15,
+		"level_weight": 0.30,
+		"keyword_weight": 0.30,
+		"decay_half_life_hours": 72,
+		"enabled": true
+	}`
+	err := os.WriteFile(path, []byte(content), 0o644)
+	require.NoError(t, err)
+
+	cfg, err := LoadConfig(path)
+	require.NoError(t, err)
+	assert.NotEmpty(t, cfg.SkipTools, "omitted skip_tools should use defaults")
+	assert.True(t, cfg.ShouldSkip("search_facts"))
+}
+
+func TestSaveDefaultConfig(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "context.json")
+
+	err := SaveDefaultConfig(path)
+	require.NoError(t, err)
+
+	// Verify we can load what we saved
+	cfg, err := LoadConfig(path)
+	require.NoError(t, err)
+	assert.Equal(t, ctxdomain.DefaultTokenBudget, cfg.TokenBudget)
+	assert.True(t, cfg.Enabled)
+}