wehub-resource-sync
33 lines
1.0 KiB
Go
33 lines
1.0 KiB
Go
package cli
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import (
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"strings"
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"testing"
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)
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// TestClampWidth guards the inline-overflow fix: scrollback lines wider than the
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// viewport get hard-broken (so the renderer's scroll estimate stays exact), while
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// lines within width — including space-padded table rows — are left untouched.
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func TestClampWidth(t *testing.T) {
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// Within width: byte-for-byte identical (runs of spaces must NOT collapse).
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row := "│ a │ bb │"
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if got := clampWidth(row, 80); got != row {
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t.Errorf("within-width line altered: %q -> %q", row, got)
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}
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// Over width: every resulting line fits, content is preserved.
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long := strings.Repeat("x", 200)
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out := clampWidth(long, 40)
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for _, line := range strings.Split(out, "\n") {
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if visibleWidth(line) > 40 {
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t.Errorf("clamped line exceeds 40: width=%d", visibleWidth(line))
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}
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}
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if strings.ReplaceAll(out, "\n", "") != long {
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t.Error("clampWidth lost or altered content")
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}
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// width <= 0 is a no-op (pre-sizing).
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if clampWidth(long, 0) != long {
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t.Error("width<=0 should be a no-op")
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}
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}
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