mirror of
https://github.com/hanzoai/eval.git
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zeekay
011df15db5
Module path renamed to github.com/hanzoai/eval and the Go package renamed from govaluate to eval. Evaluation, parsing, lexing, and operator behavior are unchanged; MIT license and George Lester attribution retained. See NOTICE for lineage.
176 lines
2.2 KiB
Go
176 lines
2.2 KiB
Go
package eval
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/*
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Courtesy of abrander
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ref: https://gist.github.com/abrander/fa05ae9b181b48ffe7afb12c961b6e90
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*/
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import (
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"fmt"
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"math/rand"
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"os"
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"testing"
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"time"
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)
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var (
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hello = "hello"
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empty struct{}
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empty2 *string
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values = []interface{}{
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-1,
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0,
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12,
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13,
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"",
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"hello",
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&hello,
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nil,
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"nil",
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empty,
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empty2,
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true,
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false,
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time.Now(),
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rune('r'),
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int64(34),
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time.Duration(0),
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"true",
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"false",
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"\ntrue\n",
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"\nfalse\n",
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"12",
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"nil",
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"arg1",
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"arg2",
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int(12),
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int32(12),
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int64(12),
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complex(1.0, 1.0),
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[]byte{0, 0, 0},
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[]int{0, 0, 0},
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[]string{},
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"[]",
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"{}",
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"\"\"",
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"\"12\"",
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"\"hello\"",
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".*",
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"==",
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"!=",
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">",
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">=",
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"<",
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"<=",
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"=~",
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"!~",
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"in",
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"&&",
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"||",
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"^",
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"&",
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"|",
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">>",
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"<<",
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"+",
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"-",
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"*",
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"/",
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"%",
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"**",
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"-",
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"!",
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"~",
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"?",
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":",
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"??",
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"+",
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"-",
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"*",
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"/",
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"%",
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"**",
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"&",
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"|",
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"^",
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">>",
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"<<",
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",",
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"(",
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")",
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"[",
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"]",
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"\n",
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"\000",
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}
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panics = 0
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)
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const (
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ITERATIONS = 10000000
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SEED = 1487873697990155515
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)
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func init() {
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rand.Seed(SEED)
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}
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func TestPanics(test *testing.T) {
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if os.Getenv("EVAL_TORTURE_TEST") == "" {
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test.Logf("'EVAL_TORTURE_TEST' env var not set - skipping torture test.")
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test.Skip()
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return
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}
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fmt.Printf("Running %d torture test cases...\n", ITERATIONS)
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for i := 0; i < ITERATIONS; i++ {
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num := rand.Intn(3) + 2
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expression := ""
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for n := 0; n < num; n++ {
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expression += fmt.Sprintf(" %s", getRandom(values))
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}
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checkPanic(expression, test)
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}
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test.Logf("Done. %d/%d panics.\n", panics, ITERATIONS)
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if panics > 0 {
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test.Fail()
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}
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}
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func checkPanic(expression string, test *testing.T) {
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parameters := make(map[string]interface{})
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defer func() {
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if r := recover(); r != nil {
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test.Logf("Panic: \"%s\". Expression: \"%s\". Parameters: %+v\n", r, expression, parameters)
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panics++
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}
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}()
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eval, _ := NewEvaluableExpression(expression)
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if eval == nil {
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return
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}
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vars := eval.Vars()
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for _, v := range vars {
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parameters[v] = getRandom(values)
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}
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_, _ = eval.Evaluate(parameters)
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}
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func getRandom(haystack []interface{}) interface{} {
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i := rand.Intn(len(haystack))
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return haystack[i]
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}
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