github.com/anonymouse64/snapd@v0.0.0-20210824153203-04c4c42d842d/interfaces/utils/utils_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2018 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package utils_test
    21  
    22  import (
    23  	"encoding/json"
    24  	"testing"
    25  
    26  	. "gopkg.in/check.v1"
    27  
    28  	"github.com/snapcore/snapd/interfaces/utils"
    29  )
    30  
    31  func Test(t *testing.T) {
    32  	TestingT(t)
    33  }
    34  
    35  type utilsSuite struct{}
    36  
    37  var _ = Suite(&utilsSuite{})
    38  
    39  func (s *utilsSuite) TestNormalizeInterfaceAttributes(c *C) {
    40  	normalize := utils.NormalizeInterfaceAttributes
    41  	c.Assert(normalize(false), Equals, false)
    42  	c.Assert(normalize(nil), Equals, nil)
    43  	c.Assert(normalize(42), Equals, int64(42))
    44  	c.Assert(normalize(3.14), Equals, float64(3.14))
    45  	// Funny that, I noticed it only because of missing test coverage.
    46  	c.Assert(normalize(float32(3.14)), Equals, float64(3.140000104904175))
    47  	c.Assert(normalize("banana"), Equals, "banana")
    48  	c.Assert(normalize([]interface{}{42, 3.14, "banana", json.Number("21"), json.Number("0.5")}), DeepEquals,
    49  		[]interface{}{int64(42), float64(3.14), "banana", int64(21), float64(0.5)})
    50  	c.Assert(normalize(map[string]interface{}{"i": 42, "f": 3.14, "s": "banana"}),
    51  		DeepEquals, map[string]interface{}{"i": int64(42), "f": float64(3.14), "s": "banana"})
    52  	c.Assert(normalize(json.Number("1")), Equals, int64(1))
    53  	c.Assert(normalize(json.Number("2.5")), Equals, float64(2.5))
    54  
    55  	// Normalize doesn't mutate slices it is given
    56  	sliceIn := []interface{}{42}
    57  	sliceOut := normalize(sliceIn)
    58  	c.Assert(sliceIn, DeepEquals, []interface{}{42})
    59  	c.Assert(sliceOut, DeepEquals, []interface{}{int64(42)})
    60  
    61  	// Normalize doesn't mutate maps it is given
    62  	mapIn := map[string]interface{}{"i": 42}
    63  	mapOut := normalize(mapIn)
    64  	c.Assert(mapIn, DeepEquals, map[string]interface{}{"i": 42})
    65  	c.Assert(mapOut, DeepEquals, map[string]interface{}{"i": int64(42)})
    66  }
    67  
    68  func (s *utilsSuite) TestCopyAttributes(c *C) {
    69  	cpattr := utils.CopyAttributes
    70  
    71  	attrsIn := map[string]interface{}{"i": 42}
    72  	attrsOut := cpattr(attrsIn)
    73  	attrsIn["i"] = "changed"
    74  	c.Assert(attrsIn, DeepEquals, map[string]interface{}{"i": "changed"})
    75  	c.Assert(attrsOut, DeepEquals, map[string]interface{}{"i": 42})
    76  
    77  	attrsIn = map[string]interface{}{"ao": []interface{}{1, 2, 3}}
    78  	attrsOut = cpattr(attrsIn)
    79  	attrsIn["ao"].([]interface{})[1] = "changed"
    80  	c.Assert(attrsIn, DeepEquals, map[string]interface{}{"ao": []interface{}{1, "changed", 3}})
    81  	c.Assert(attrsOut, DeepEquals, map[string]interface{}{"ao": []interface{}{1, 2, 3}})
    82  }