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|
package flamegraph
import (
"strings"
"testing"
)
func TestBuildTerminalLayoutWidthScaling(t *testing.T) {
snapshot := &snapshotNode{
Name: "root",
Total: 100,
Children: []*snapshotNode{
{
Name: "A",
Total: 60,
Children: []*snapshotNode{
{Name: "A1", Total: 30},
{Name: "A2", Total: 30},
},
},
{Name: "B", Total: 40},
},
}
tests := []struct {
width int
wantA int
wantB int
wantA1 int
wantA2 int
wantAll int
}{
{width: 80, wantA: 48, wantB: 32, wantA1: 24, wantA2: 24, wantAll: 5},
{width: 120, wantA: 72, wantB: 48, wantA1: 36, wantA2: 36, wantAll: 5},
{width: 200, wantA: 120, wantB: 80, wantA1: 60, wantA2: 60, wantAll: 5},
}
for _, tc := range tests {
frames := BuildTerminalLayout(snapshot, tc.width, 10)
if len(frames) != tc.wantAll {
t.Fatalf("width %d: expected %d frames, got %d", tc.width, tc.wantAll, len(frames))
}
root := mustFindFrame(t, frames, "root")
if root.Width != tc.width || root.Row != 0 || root.Col != 0 {
t.Fatalf("width %d: unexpected root frame %+v", tc.width, root)
}
a := mustFindFrame(t, frames, "root"+pathSeparator+"A")
b := mustFindFrame(t, frames, "root"+pathSeparator+"B")
a1 := mustFindFrame(t, frames, "root"+pathSeparator+"A"+pathSeparator+"A1")
a2 := mustFindFrame(t, frames, "root"+pathSeparator+"A"+pathSeparator+"A2")
if a.Width != tc.wantA || b.Width != tc.wantB {
t.Fatalf("width %d: unexpected child widths A=%d B=%d", tc.width, a.Width, b.Width)
}
if a1.Width != tc.wantA1 || a2.Width != tc.wantA2 {
t.Fatalf("width %d: unexpected grandchild widths A1=%d A2=%d", tc.width, a1.Width, a2.Width)
}
if b.Col != a.Col+a.Width {
t.Fatalf("width %d: expected B col %d, got %d", tc.width, a.Col+a.Width, b.Col)
}
}
}
func TestBuildTerminalLayoutCullsSubCellFramesAndRespectsHeight(t *testing.T) {
snapshot := &snapshotNode{
Name: "root",
Total: 100,
Children: []*snapshotNode{
{
Name: "big",
Total: 99,
Children: []*snapshotNode{
{Name: "deep", Total: 99},
},
},
{Name: "tiny", Total: 1},
},
}
frames := BuildTerminalLayout(snapshot, 80, 2)
if hasFrame(frames, "root"+pathSeparator+"tiny") {
t.Fatalf("expected tiny frame to be culled (<1 terminal cell)")
}
if hasFrame(frames, "root"+pathSeparator+"big"+pathSeparator+"deep") {
t.Fatalf("expected deep frame to be omitted due height limit")
}
if !hasFrame(frames, "root"+pathSeparator+"big") {
t.Fatalf("expected big frame to be present")
}
}
func TestBuildTerminalLayoutUsesPathSeparatorAndColor(t *testing.T) {
snapshot := &snapshotNode{
Name: "root",
Total: 10,
Children: []*snapshotNode{
{Name: "child", Total: 10},
},
}
frames := BuildTerminalLayout(snapshot, 80, 4)
child := mustFindFrame(t, frames, "root"+pathSeparator+"child")
if !strings.Contains(child.Path, pathSeparator) {
t.Fatalf("expected path %q to contain separator %q", child.Path, pathSeparator)
}
if child.Fill == nil {
t.Fatalf("expected frame color to be set")
}
}
func TestRenderTerminalViewShowsNarrowMessage(t *testing.T) {
out := RenderTerminalView(nil, 50, 10, 0, nil, nil, true, false, "")
if !strings.Contains(out, "terminal too narrow") {
t.Fatalf("expected narrow terminal warning, got %q", out)
}
}
func TestRenderTerminalViewIncludesToolbarAndStatus(t *testing.T) {
snapshot := &snapshotNode{
Name: "root",
Total: 10,
Children: []*snapshotNode{
{Name: "child", Total: 10},
},
}
frames := BuildTerminalLayout(snapshot, 80, 6)
out := RenderTerminalView(frames, 80, 6, 1, nil, nil, true, false, "")
if !strings.Contains(out, "Flame | frames:2") {
t.Fatalf("expected toolbar to include frame count, got %q", out)
}
if !strings.Contains(out, "Selected: child") {
t.Fatalf("expected status line to show selected frame, got %q", out)
}
}
func TestRenderTerminalViewShowsDeepLevelTruncationHint(t *testing.T) {
snapshot := &snapshotNode{
Name: "root",
Total: 4,
Children: []*snapshotNode{
{
Name: "a",
Total: 4,
Children: []*snapshotNode{
{
Name: "b",
Total: 4,
Children: []*snapshotNode{
{
Name: "c",
Total: 4,
Children: []*snapshotNode{
{Name: "d", Total: 4},
},
},
},
},
},
},
},
}
frames := BuildTerminalLayout(snapshot, 80, 10)
out := RenderTerminalView(frames, 80, 4, 0, nil, nil, true, false, "")
if !strings.Contains(out, "showing deepest levels") {
t.Fatalf("expected truncation hint in toolbar, got %q", out)
}
}
func TestComputeSubtreeSetIncludesAncestorsAndDescendants(t *testing.T) {
frames := []tuiFrame{
{Path: "root"},
{Path: "root" + pathSeparator + "A"},
{Path: "root" + pathSeparator + "A" + pathSeparator + "A1"},
{Path: "root" + pathSeparator + "B"},
}
set := computeSubtreeSet(frames, 1)
if !set[0] || !set[1] || !set[2] {
t.Fatalf("expected root/A/A1 to be in selected subtree: %#v", set)
}
if set[3] {
t.Fatalf("did not expect sibling branch B in subtree: %#v", set)
}
}
func mustFindFrame(t *testing.T, frames []tuiFrame, path string) tuiFrame {
t.Helper()
for _, frame := range frames {
if frame.Path == path {
return frame
}
}
t.Fatalf("frame with path %q not found", path)
return tuiFrame{}
}
func hasFrame(frames []tuiFrame, path string) bool {
for _, frame := range frames {
if frame.Path == path {
return true
}
}
return false
}
|
