update tests

Author: AvicennaJr

evaluator/evaluator_test.go

@@ -22,7 +22,6 @@ func TestEvalIntegerExpression(t *testing.T) {
 		{"5 + 5 + 5 + 5 - 10", 10},
 		{"2 * 2 * 2 * 2", 16},
 		{"2 / 2 + 1", 2},
-		{"2**3", 8},
 	}
 
 	for _, tt := range tests {
@@ -31,6 +30,20 @@ func TestEvalIntegerExpression(t *testing.T) {
 	}
 }
 
+func TestEvalFloatExpression(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected float64
+	}{
+		{"2**3", 8.0},
+	}
+
+	for _, tt := range tests {
+		evaluated := testEval(tt.input)
+		testFloatObject(t, evaluated, tt.expected)
+	}
+}
+
 func TestEvalBooleanExpression(t *testing.T) {
 	tests := []struct {
 		input    string