chore: import upstream snapshot with attribution

internal/parser/virtual_source_path_test.go

@@ -0,0 +1,54 @@
+package parser
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestVirtualSourcePathRoundTripAllowsHashInContainerPath(t *testing.T) {
+	container := filepath.Join("/tmp", "work#1", "sessions.db")
+	virtual := VirtualSourcePath(container, "session-1")
+
+	gotContainer, gotSourceID, ok := ParseVirtualSourcePath(virtual)
+
+	require.True(t, ok, "expected virtual source path to parse")
+	assert.Equal(t, container, gotContainer)
+	assert.Equal(t, "session-1", gotSourceID)
+}
+
+func TestParseVirtualSourcePathRejectsMalformedPaths(t *testing.T) {
+	tests := []string{
+		"",
+		"/tmp/sessions.db",
+		"/tmp/sessions.db#",
+		"#session-1",
+	}
+
+	for _, path := range tests {
+		t.Run(path, func(t *testing.T) {
+			container, sourceID, ok := ParseVirtualSourcePath(path)
+
+			assert.False(t, ok)
+			assert.Empty(t, container)
+			assert.Empty(t, sourceID)
+		})
+	}
+}
+
+func TestParseVirtualSourcePathForBase(t *testing.T) {
+	path := VirtualSourcePath(filepath.Join("/tmp", "sessions.db"), "session-1")
+
+	container, sourceID, ok := ParseVirtualSourcePathForBase(path, "sessions.db")
+
+	require.True(t, ok, "expected base name to match")
+	assert.Equal(t, filepath.Join("/tmp", "sessions.db"), container)
+	assert.Equal(t, "session-1", sourceID)
+
+	container, sourceID, ok = ParseVirtualSourcePathForBase(path, "other.db")
+	assert.False(t, ok)
+	assert.Empty(t, container)
+	assert.Empty(t, sourceID)
+}