Better unit testing for join.

join_test.go

@@ -1,21 +1,77 @@
 package lipgloss
 
-import "testing"
+func Example_vertical() {
+	blockA := "AAA\nAA"
+	blockB := "BBB\nBBBBB\nBB"
+	blockC := "C"
 
-func TestJoinVertical(t *testing.T) {
-	type test struct {
-		result   string
-		expected string
-	}
-	tests := []test{
-		{JoinVertical(0, "A", "BBBB"), "A   \nBBBB"},
-		{JoinVertical(1, "A", "BBBB"), "   A\nBBBB"},
-		{JoinVertical(0.25, "A", "BBBB"), " A  \nBBBB"},
-	}
+	out(JoinVertical(Left, blockA, blockB, blockC))
+	out(JoinVertical(Center, blockA, blockB, blockC))
+	out(JoinVertical(Right, blockA, blockB, blockC))
+	out(JoinVertical(0.25, blockA, blockB, blockC))
 
-	for _, test := range tests {
-		if test.result != test.expected {
-			t.Errorf("Got \n%s\n, expected \n%s\n", test.result, test.expected)
-		}
-	}
+	// Output:
+	// AAA__␤
+	// AA___␤
+	// BBB__␤
+	// BBBBB␤
+	// BB___␤
+	// C____🛇
+	//
+	// _AAA_␤
+	// __AA_␤
+	// _BBB_␤
+	// BBBBB␤
+	// __BB_␤
+	// __C__🛇
+	//
+	// __AAA␤
+	// ___AA␤
+	// __BBB␤
+	// BBBBB␤
+	// ___BB␤
+	// ____C🛇
+	//
+	// _AAA_␤
+	// _AA__␤
+	// _BBB_␤
+	// BBBBB␤
+	// _BB__␤
+	// _C___🛇
+}
+
+func Example_horizontal() {
+	blockA := "AAA\nAA\n\n\n"
+	blockB := "BBB\nBBBBB\nBB"
+	blockC := "C"
+
+	out(JoinHorizontal(Top, blockA, blockB, blockC))
+	out(JoinHorizontal(Center, blockA, blockB, blockC))
+	out(JoinHorizontal(Bottom, blockA, blockB, blockC))
+	out(JoinHorizontal(0.25, blockA, blockB, blockC))
+
+	// Output:
+	// AAABBB__C␤
+	// AA_BBBBB_␤
+	// ___BB____␤
+	// _________␤
+	// _________🛇
+	//
+	// AAA______␤
+	// AA_BBB___␤
+	// ___BBBBBC␤
+	// ___BB____␤
+	// _________🛇
+	//
+	// AAA______␤
+	// AA_______␤
+	// ___BBB___␤
+	// ___BBBBB_␤
+	// ___BB___C🛇
+	//
+	// AAA______␤
+	// AA_BBB__C␤
+	// ___BBBBB_␤
+	// ___BB____␤
+	// _________🛇
 }