day 20, unit tests to debug == gold

2026-05-18 19:13:27 +02:00 · 2022-12-26 02:14:12 -05:00
parent f26777edc0
commit 74e397ca4c
2 changed files with 280 additions and 0 deletions
@@ -0,0 +1,115 @@
+package main
+
+import (
+	_ "embed"
+	"testing"
+)
+
+var example = `1
+2
+-3
+3
+-2
+0
+4`
+var example2 = `1
+2
+-3
+9
+-2
+0
+4`
+var example3 = `1
+2
+-3
+3
+-8
+0
+4`
+
+func Test_mixList(t *testing.T) {
+	tests := []struct {
+		name                 string
+		input                string
+		decryptionKey, mixes int // for part 2 mostly
+		want                 int
+	}{
+		{
+			name:          "example",
+			input:         example,
+			decryptionKey: 1,
+			mixes:         1,
+			want:          3,
+		},
+		{
+			name:          "example2",
+			input:         example2,
+			decryptionKey: 1,
+			mixes:         1,
+			want:          3,
+		},
+		{
+			name:          "example3",
+			input:         example3,
+			decryptionKey: 1,
+			mixes:         1,
+			want:          3,
+		},
+		{
+			name:          "actual",
+			input:         input,
+			decryptionKey: 1,
+			mixes:         1,
+			want:          9945,
+		},
+		{
+			name:          "example",
+			input:         example,
+			decryptionKey: part2DecryptionKey,
+			mixes:         10,
+			want:          1623178306,
+		},
+		{
+			name:          "actual",
+			input:         input,
+			decryptionKey: part2DecryptionKey,
+			mixes:         10,
+			want:          3338877775442,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := mixList(tt.input, tt.decryptionKey, tt.mixes); got != tt.want {
+				t.Errorf("mixList() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func Test_llNode_move(t *testing.T) {
+	zeroNode, nodeSlice := parseInput(`0
+1
+2
+3
+4
+5`)
+
+	zeroNode.move(len(nodeSlice))
+	originalString := "0,1,2,3,4,5,"
+	// should be the same
+	if got := listToString(zeroNode, len(nodeSlice)); got != originalString {
+		t.Errorf("moving zero, want no change %q, got %q", originalString, got)
+	}
+
+	zeroNode.prev.move(len(nodeSlice))
+	if got := listToString(zeroNode, len(nodeSlice)); got != originalString {
+		t.Errorf("moving 5, want no change %q, got %q", originalString, got)
+	}
+
+	oneNode := zeroNode.next
+	oneNode.move(len(nodeSlice))
+	want := "0,2,1,3,4,5,"
+	if got := listToString(zeroNode, len(nodeSlice)); got != want {
+		t.Errorf("moving 1, want %q got %q", want, got)
+	}
+}