mirror of
https://github.com/open-policy-agent/opa.git
synced 2026-08-12 19:32:48 -06:00
Torin Sandall
fe25593707
These changes modify OPA to use json.Number to represent number values in storage and the AST. Comparisons and numeric operations are handled by the math/big package. Using json.Number avoids loss of precision when loading integers greater than 2**53 and use of math/big avoids need for type conversions in the built-in implementations. In the long run, the math/big usage may be replaced with specific paths for smaller numbers. Fixes #154
55 lines
2.2 KiB
Go
55 lines
2.2 KiB
Go
// Copyright 2016 The OPA Authors. All rights reserved.
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// Use of this source code is governed by an Apache2
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// license that can be found in the LICENSE file.
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package util
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import (
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"encoding/json"
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"testing"
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)
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func TestCompare(t *testing.T) {
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tests := []struct {
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a interface{}
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b interface{}
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expected int
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}{
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{nil, nil, 0},
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{nil, true, -1},
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{nil, false, -1},
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{false, false, 0},
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{false, true, -1},
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{true, true, 0},
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{true, false, 1},
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{true, json.Number("0"), -1},
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{json.Number("0"), json.Number("0"), 0},
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{json.Number("0"), json.Number("-1"), 1},
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{json.Number("-1"), json.Number("0"), -1},
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{json.Number("1.797693134862315708145274237317043567981e+308"), json.Number("4.940656458412465441765687928682213723651e-324"), 1},
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{json.Number("-1"), "", -1},
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{"", "", 0},
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{"hello", "", 1},
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{"hello world", "hello worldz", -1},
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{[]interface{}{}, "", 1},
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{[]interface{}{}, []interface{}{}, 0},
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{[]interface{}{true, false}, []interface{}{true, nil}, 1},
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{[]interface{}{true, true}, []interface{}{true, true}, 0},
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{[]interface{}{true, false}, []interface{}{true, true}, -1},
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{map[string]interface{}{}, []interface{}{}, 1},
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{map[string]interface{}{"foo": []interface{}{true, false}, "bar": []interface{}{true, true}}, map[string]interface{}{"foo": []interface{}{true, false}, "bar": []interface{}{true, true}}, 0},
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{map[string]interface{}{"foo": []interface{}{true, false}, "bar": []interface{}{true, nil}}, map[string]interface{}{"foo": []interface{}{true, false}, "bar": []interface{}{true, true}}, -1},
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{map[string]interface{}{"foo": []interface{}{true, true}, "bar": []interface{}{true, true}}, map[string]interface{}{"foo": []interface{}{true, false}, "bar": []interface{}{true, true}}, 1},
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{map[string]interface{}{"foo": true, "barr": false}, map[string]interface{}{"foo": true, "bar": false}, 1},
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{map[string]interface{}{"foo": true, "bar": false, "qux": false}, map[string]interface{}{"foo": true, "bar": false}, 1},
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{map[string]interface{}{"foo": true, "bar": false, "baz": false}, map[string]interface{}{"foo": true, "bar": false}, -1},
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}
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for i, tc := range tests {
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result := Compare(tc.a, tc.b)
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if result != tc.expected {
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t.Errorf("Test case %d: expected %d but got: %d", i, tc.expected, result)
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}
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}
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}
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