Initial upload

go/chessboard/chessboard_test.go

@@ -0,0 +1,100 @@
+package chessboard
+
+import (
+	"testing"
+)
+
+// newChessboard return a *Chessboard for tests
+//
+//   1 2 3 4 5 6 7 8
+// A # _ # _ _ _ _ # A
+// B _ _ _ _ # _ _ _ B
+// C _ _ # _ _ _ _ _ C
+// D _ _ _ _ _ _ _ _ D
+// E _ _ _ _ _ # _ # E
+// F _ _ _ _ _ _ _ _ F
+// G _ _ _ # _ _ _ _ G
+// H # # # # # # _ # H
+//   1 2 3 4 5 6 7 8
+func newChessboard() Chessboard {
+	return Chessboard{
+		"A": Rank{true, false, true, false, false, false, false, true},
+		"B": Rank{false, false, false, false, true, false, false, false},
+		"C": Rank{false, false, true, false, false, false, false, false},
+		"D": Rank{false, false, false, false, false, false, false, false},
+		"E": Rank{false, false, false, false, false, true, false, true},
+		"F": Rank{false, false, false, false, false, false, false, false},
+		"G": Rank{false, false, false, true, false, false, false, false},
+		"H": Rank{true, true, true, true, true, true, false, true},
+	}
+}
+
+func TestCountInRank(t *testing.T) {
+	cb := newChessboard()
+	for _, test := range []struct {
+		in  string
+		out int
+	}{
+		{"A", 3},
+		{"B", 1},
+		{"C", 1},
+		{"D", 0},
+		{"E", 2},
+		{"F", 0},
+		{"G", 1},
+		{"H", 7},
+		{"Z", 0},
+	} {
+		if out := CountInRank(cb, test.in); out != test.out {
+			t.Errorf(
+				"CountInRank(chessboard, '%v') returned %v while %v was expected\n",
+				test.in,
+				out,
+				test.out,
+			)
+		}
+	}
+}
+
+func TestCountInFile(t *testing.T) {
+	cb := newChessboard()
+	for _, test := range []struct {
+		in  int
+		out int
+	}{
+		{1, 2},
+		{2, 1},
+		{3, 3},
+		{4, 2},
+		{5, 2},
+		{6, 2},
+		{7, 0},
+		{8, 3},
+		{100, 0},
+	} {
+		if out := CountInFile(cb, test.in); out != test.out {
+			t.Errorf(
+				"CountInFile(chessboard, %v) returned %v while %v was expected\n",
+				test.in,
+				out,
+				test.out,
+			)
+		}
+	}
+}
+
+func TestCountAll(t *testing.T) {
+	cb := newChessboard()
+	wanted := 64
+	if out := CountAll(cb); out != wanted {
+		t.Errorf("CountAll(chessboard) returned %v while %v was expected", out, wanted)
+	}
+}
+
+func TestCountOccupied(t *testing.T) {
+	cb := newChessboard()
+	wanted := 15
+	if out := CountOccupied(cb); out != wanted {
+		t.Errorf("CountOccupied(chessboard) returned %v while %v was expected", out, wanted)
+	}
+}