/
intcheckers.go
99 lines (88 loc) · 2.94 KB
/
intcheckers.go
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// Copyright (c) 2014-2020 Canonical Ltd
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 3 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package testutil
import (
"fmt"
"gopkg.in/check.v1"
)
type intChecker struct {
*check.CheckerInfo
rel string
}
func (checker *intChecker) Check(params []interface{}, names []string) (result bool, error string) {
a, ok := params[0].(int)
if !ok {
return false, "left-hand-side argument must be an int"
}
b, ok := params[1].(int)
if !ok {
return false, "right-hand-side argument must be an int"
}
switch checker.rel {
case "<":
result = a < b
case "<=":
result = a <= b
case "==":
result = a == b
case "!=":
result = a != b
case ">":
result = a > b
case ">=":
result = a >= b
default:
return false, fmt.Sprintf("unexpected relation %q", checker.rel)
}
if !result {
error = fmt.Sprintf("relation %d %s %d is not true", a, checker.rel, b)
}
return result, error
}
// IntLessThan checker verifies that one integer is less than other integer.
//
// For example:
//
// c.Assert(1, IntLessThan, 2)
var IntLessThan = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntLessThan", Params: []string{"a", "b"}}, rel: "<"}
// IntLessEqual checker verifies that one integer is less than or equal to other integer.
//
// For example:
//
// c.Assert(1, IntLessEqual, 1)
var IntLessEqual = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntLessEqual", Params: []string{"a", "b"}}, rel: "<="}
// IntEqual checker verifies that one integer is equal to other integer.
//
// For example:
//
// c.Assert(1, IntEqual, 1)
var IntEqual = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntEqual", Params: []string{"a", "b"}}, rel: "=="}
// IntNotEqual checker verifies that one integer is not equal to other integer.
//
// For example:
//
// c.Assert(1, IntNotEqual, 2)
var IntNotEqual = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntNotEqual", Params: []string{"a", "b"}}, rel: "!="}
// IntGreaterThan checker verifies that one integer is greater than other integer.
//
// For example:
//
// c.Assert(2, IntGreaterThan, 1)
var IntGreaterThan = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntGreaterThan", Params: []string{"a", "b"}}, rel: ">"}
// IntGreaterEqual checker verifies that one integer is greater than or equal to other integer.
//
// For example:
//
// c.Assert(1, IntGreaterEqual, 2)
var IntGreaterEqual = &intChecker{CheckerInfo: &check.CheckerInfo{Name: "IntGreaterEqual", Params: []string{"a", "b"}}, rel: ">="}