improved markdown table support for go port

main_test.go

@@ -1519,6 +1519,67 @@ func TestRenderTableFormatting(t *testing.T) {
   }
 }
 
+func TestWrapCell(t *testing.T) {
+  COL = true
+  defer func() { COL = false }()
+
+  lines := wrapCell("Short text", 20)
+  if len(lines) != 1 || lines[0] != "Short text" {
+    t.Errorf("wrapCell short = %v", lines)
+  }
+
+  lines = wrapCell("The quick brown fox jumps over the lazy dog", 15)
+  if len(lines) < 3 {
+    t.Errorf("wrapCell long = %v", lines)
+  }
+  for _, l := range lines {
+    if visibleLen(l) > 15 {
+      t.Errorf("line %q visible length = %d > 15", l, visibleLen(l))
+    }
+  }
+
+  // With ANSI escape codes
+  styled := "\033[1;36mAlice In Wonderland\033[0m"
+  lines = wrapCell(styled, 10)
+  if len(lines) != 2 {
+    t.Errorf("wrapCell styled count = %d, lines = %v", len(lines), lines)
+  }
+  for _, l := range lines {
+    if visibleLen(l) > 10 {
+      t.Errorf("styled line %q length = %d > 10", l, visibleLen(l))
+    }
+  }
+}
+
+func TestRenderTableWidthConstraint(t *testing.T) {
+  COL = true
+  defer func() { COL = false }()
+
+  // Create an extra-wide table with long text
+  raw := strings.Join([]string{
+    "| Long Column Header One | Extremely Long Column Header Two That Would Definitely Overflow | Another Very Wide Column Header Three |",
+    "|---|---|---|",
+    "| Some detailed explanation that is very long and has lots of words in it | Another paragraph of text that continues on and on without stopping | Final column with even more long descriptions |",
+  }, "\n")
+
+  rendered := renderMD(raw)
+  lines := strings.Split(rendered, "\n")
+  maxW := termWidth()
+  if maxW < 20 { maxW = 80 }
+
+  for i, ln := range lines {
+    vl := visibleLen(ln)
+    if vl > maxW {
+      t.Errorf("table line %d visible length = %d, exceeds max width %d:\n%s", i, vl, maxW, ln)
+    }
+  }
+
+  // Ensure content was wrapped rather than dropped
+  if !strings.Contains(rendered, "detailed") || !strings.Contains(rendered, "explanation") || !strings.Contains(rendered, "paragraph") {
+    t.Errorf("rendered table should contain all words wrapped across lines:\n%s", rendered)
+  }
+}
+
 func TestRenderMDNoColorFallback(t *testing.T) {
   COL = false
   raw := "# Heading\n**bold** and `code`\n- list item"