40: Champernowne's constant

40_champ_constant/main_test.go

@@ -0,0 +1,37 @@
+package main
+
+import "testing"
+
+func Test_getDigit(t *testing.T) {
+	type args struct {
+		n int
+	}
+	tests := []struct {
+		name string
+		args args
+		want int
+	}{
+		{
+			"12",
+			args{12},
+			1,
+		},
+		{
+			"13",
+			args{13},
+			1,
+		},
+		{
+			"15",
+			args{15},
+			2,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := getDigit(tt.args.n); got != tt.want {
+				t.Errorf("getDigit() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}