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package termprint
import (
"bytes"
"strings"
"testing"
)
func TestNewColumnPrinter(t *testing.T) {
t.Run("returns nil when no columns are configured", func(t *testing.T) {
if got := NewColumnPrinter(&bytes.Buffer{}, nil, nil); got != nil {
t.Fatalf("NewColumnPrinter() = %#v, want nil", got)
}
})
t.Run("uses longest input slice and fallback width", func(t *testing.T) {
cp := NewColumnPrinter(&bytes.Buffer{}, []string{"openai"}, []string{"gpt-5", "haiku"})
if cp == nil {
t.Fatal("NewColumnPrinter() returned nil")
}
if cp.columns != 2 {
t.Fatalf("columns = %d, want 2", cp.columns)
}
if cp.colWidth != 48 {
t.Fatalf("colWidth = %d, want 48", cp.colWidth)
}
if got, want := cp.providers, []string{"openai", ""}; !equalStrings(got, want) {
t.Fatalf("providers = %#v, want %#v", got, want)
}
if got, want := cp.models, []string{"gpt-5", "haiku"}; !equalStrings(got, want) {
t.Fatalf("models = %#v, want %#v", got, want)
}
})
}
func TestDetectTerminalWidth(t *testing.T) {
if got := detectTerminalWidth(&bytes.Buffer{}); got != 0 {
t.Fatalf("detectTerminalWidth() = %d, want 0", got)
}
}
func TestHeaderCells(t *testing.T) {
cp := &ColumnPrinter{
columns: 4,
providers: []string{" openai ", "", "anthropic", ""},
models: []string{" gpt-5 ", "haiku", "", ""},
}
got := cp.headerCells()
want := []string{"openai:gpt-5", "haiku", "anthropic", ""}
if !equalStrings(got, want) {
t.Fatalf("headerCells() = %#v, want %#v", got, want)
}
}
func TestDividerCells(t *testing.T) {
cp := &ColumnPrinter{columns: 2, colWidth: 4}
got := cp.dividerCells()
want := []string{"────", "────"}
if !equalStrings(got, want) {
t.Fatalf("dividerCells() = %#v, want %#v", got, want)
}
}
func TestPrintHeader(t *testing.T) {
buf := &bytes.Buffer{}
cp := &ColumnPrinter{
stdout: buf,
columns: 2,
colWidth: 6,
providers: []string{"openai", "anth"},
models: []string{"gpt-5", ""},
}
cp.PrintHeader()
got := buf.String()
if !strings.Contains(got, "opena…") {
t.Fatalf("PrintHeader() output = %q, want truncated provider/model header", got)
}
if !strings.Contains(got, "anth") {
t.Fatalf("PrintHeader() output = %q, want second header cell", got)
}
if !strings.Contains(got, "──────") {
t.Fatalf("PrintHeader() output = %q, want divider row", got)
}
}
func TestWrap(t *testing.T) {
cp := &ColumnPrinter{colWidth: 4}
t.Run("returns single segment when text fits", func(t *testing.T) {
got := cp.wrap("go")
want := []string{"go"}
if !equalStrings(got, want) {
t.Fatalf("wrap() = %#v, want %#v", got, want)
}
})
t.Run("wraps long text and expands tabs", func(t *testing.T) {
got := cp.wrap("ab\tcd")
want := []string{"ab ", " cd"}
if !equalStrings(got, want) {
t.Fatalf("wrap() = %#v, want %#v", got, want)
}
})
}
func TestWriteAndFlush(t *testing.T) {
buf := &bytes.Buffer{}
cp := &ColumnPrinter{
stdout: buf,
columns: 2,
colWidth: 10,
partial: make([]string, 2),
}
writer := cp.Writer(1)
if _, err := writer.Write([]byte("alpha")); err != nil {
t.Fatalf("Write() error = %v", err)
}
if got := cp.partial[1]; got != "alpha" {
t.Fatalf("partial[1] = %q, want %q", got, "alpha")
}
if got := buf.Len(); got != 0 {
t.Fatalf("buffer length = %d, want 0 before newline", got)
}
if n, err := cp.write(1, "beta\nnext"); err != nil {
t.Fatalf("write() error = %v", err)
} else if n != len("beta\nnext") {
t.Fatalf("write() bytes = %d, want %d", n, len("beta\nnext"))
}
if got := cp.partial[1]; got != "next" {
t.Fatalf("partial[1] = %q, want %q", got, "next")
}
cp.Flush(1)
got := buf.String()
if !strings.Contains(got, "alphabeta") {
t.Fatalf("buffer = %q, want first emitted line", got)
}
if !strings.Contains(got, "next") {
t.Fatalf("buffer = %q, want flushed line", got)
}
if cp.partial[1] != "" {
t.Fatalf("partial[1] = %q, want empty after Flush", cp.partial[1])
}
if n, err := cp.write(-1, "ignored"); err != nil {
t.Fatalf("write() invalid index error = %v", err)
} else if n != len("ignored") {
t.Fatalf("write() invalid index bytes = %d, want %d", n, len("ignored"))
}
}
func TestWriteLineToPadsAndTruncates(t *testing.T) {
buf := &bytes.Buffer{}
cp := &ColumnPrinter{columns: 1, colWidth: 4}
cp.writeLineTo(buf, []string{"abcdef"})
if got, want := buf.String(), "abc…\n"; got != want {
t.Fatalf("writeLineTo() = %q, want %q", got, want)
}
}
func equalStrings(got, want []string) bool {
if len(got) != len(want) {
return false
}
for i := range got {
if got[i] != want[i] {
return false
}
}
return true
}
|
