chore: import upstream snapshot with attribution

internal/eval/cache_test.go

@@ -0,0 +1,159 @@
+package eval
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestNewCache_EmptyDirDefaultsToHome(t *testing.T) {
+	c, err := NewCache("", "v1.0.0")
+	require.NoError(t, err)
+
+	home, err := os.UserHomeDir()
+	require.NoError(t, err)
+
+	expected := filepath.Join(home, ".gortex-eval-cache")
+	assert.Equal(t, expected, c.dir)
+}
+
+func TestCheck_ReturnsFalseForNonExistentEntry(t *testing.T) {
+	c, err := NewCache(t.TempDir(), "v1.0.0")
+	require.NoError(t, err)
+
+	assert.False(t, c.Check("myrepo", "abc123"))
+}
+
+func TestStoreAndCheck(t *testing.T) {
+	cacheDir := t.TempDir()
+	c, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	// Create a fake index directory with some content.
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("graph-data"), 0o644))
+
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir))
+	assert.True(t, c.Check("myrepo", "abc123"))
+}
+
+func TestStoreAndLoad(t *testing.T) {
+	cacheDir := t.TempDir()
+	c, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("graph-data"), 0o644))
+
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir))
+
+	path, err := c.Load("myrepo", "abc123")
+	require.NoError(t, err)
+
+	expected := filepath.Join(cacheDir, "myrepo_abc123")
+	assert.Equal(t, expected, path)
+
+	// Verify the copied content is intact.
+	data, err := os.ReadFile(filepath.Join(path, "graph.bin"))
+	require.NoError(t, err)
+	assert.Equal(t, "graph-data", string(data))
+}
+
+func TestStoreAndValidate_MatchingVersion(t *testing.T) {
+	cacheDir := t.TempDir()
+	c, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("data"), 0o644))
+
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir))
+	assert.True(t, c.Validate("myrepo", "abc123"))
+}
+
+func TestValidate_ReturnsFalseForMismatchedVersion(t *testing.T) {
+	cacheDir := t.TempDir()
+	c1, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("data"), 0o644))
+
+	require.NoError(t, c1.Store("myrepo", "abc123", indexDir))
+
+	// Create a new cache instance with a different version.
+	c2, err := NewCache(cacheDir, "v2.0.0")
+	require.NoError(t, err)
+
+	assert.False(t, c2.Validate("myrepo", "abc123"))
+}
+
+func TestEvict_RemovesEntry(t *testing.T) {
+	cacheDir := t.TempDir()
+	c, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("data"), 0o644))
+
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir))
+	assert.True(t, c.Check("myrepo", "abc123"))
+
+	require.NoError(t, c.Evict("myrepo", "abc123"))
+	assert.False(t, c.Check("myrepo", "abc123"))
+}
+
+func TestStore_OverwritesExistingEntry(t *testing.T) {
+	cacheDir := t.TempDir()
+	c, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	// Store first version.
+	indexDir1 := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir1, "graph.bin"), []byte("old-data"), 0o644))
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir1))
+
+	// Store second version — should overwrite.
+	indexDir2 := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir2, "graph.bin"), []byte("new-data"), 0o644))
+	require.NoError(t, c.Store("myrepo", "abc123", indexDir2))
+
+	path, err := c.Load("myrepo", "abc123")
+	require.NoError(t, err)
+
+	data, err := os.ReadFile(filepath.Join(path, "graph.bin"))
+	require.NoError(t, err)
+	assert.Equal(t, "new-data", string(data))
+}
+
+func TestVersionMismatch_StoreV1_ValidateWithV2(t *testing.T) {
+	cacheDir := t.TempDir()
+
+	// Store with v1.
+	c1, err := NewCache(cacheDir, "v1.0.0")
+	require.NoError(t, err)
+
+	indexDir := t.TempDir()
+	require.NoError(t, os.WriteFile(filepath.Join(indexDir, "graph.bin"), []byte("data"), 0o644))
+	require.NoError(t, c1.Store("myrepo", "abc123", indexDir))
+
+	// Create cache with v2 — validate should return false.
+	c2, err := NewCache(cacheDir, "v2.0.0")
+	require.NoError(t, err)
+
+	assert.False(t, c2.Validate("myrepo", "abc123"))
+
+	// Entry still exists (Check is version-agnostic).
+	assert.True(t, c2.Check("myrepo", "abc123"))
+
+	// Evict the stale entry.
+	require.NoError(t, c2.Evict("myrepo", "abc123"))
+	assert.False(t, c2.Check("myrepo", "abc123"))
+
+	// Re-store with v2.
+	require.NoError(t, c2.Store("myrepo", "abc123", indexDir))
+	assert.True(t, c2.Validate("myrepo", "abc123"))
+}