27: quadratic primes

27_quadratic_primes/main_test.go

@@ -0,0 +1,62 @@
+package main
+
+import "testing"
+
+func Test_isPrime(t *testing.T) {
+	type args struct {
+		n int
+	}
+	tt := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			"1",
+			args{1},
+			false,
+		},
+		{
+			"2",
+			args{2},
+			true,
+		},
+		{
+			"4",
+			args{4},
+			false,
+		},
+		{
+			"17",
+			args{17},
+			true,
+		},
+		{
+			"37",
+			args{37},
+			true,
+		},
+		{
+			"73",
+			args{73},
+			true,
+		},
+		{
+			"13 * 3 * 5 * 5 * 17 * 31 * 737",
+			args{3 * 3 * 5 * 5 * 17 * 31 * 73},
+			false,
+		},
+		{
+			"large_one",
+			args{2876*2876 - 63*2876 + 977},
+			false,
+		},
+	}
+	for _, tc := range tt {
+		t.Run(tc.name, func(t *testing.T) {
+			if got := isPrime(tc.args.n); got != tc.want {
+				t.Errorf("isPrime() = %v, want %v", got, tc.want)
+			}
+		})
+	}
+}