github.com/makyo/juju@v0.0.0-20160425123129-2608902037e9/cmd/juju/common/flags_test.go (about)

     1  // Copyright 2016 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package common
     5  
     6  import (
     7  	"io/ioutil"
     8  	"os"
     9  	"path/filepath"
    10  
    11  	"github.com/juju/errors"
    12  	jc "github.com/juju/testing/checkers"
    13  	gc "gopkg.in/check.v1"
    14  
    15  	"github.com/juju/juju/testing"
    16  )
    17  
    18  type FlagsSuite struct {
    19  	testing.FakeJujuXDGDataHomeSuite
    20  }
    21  
    22  var _ = gc.Suite(&FlagsSuite{})
    23  
    24  func (*FlagsSuite) TestConfigFlagSet(c *gc.C) {
    25  	var f ConfigFlag
    26  	c.Assert(f.Set("a.yaml"), jc.ErrorIsNil)
    27  	assertConfigFlag(c, f, []string{"a.yaml"}, nil)
    28  	c.Assert(f.Set("b.yaml"), jc.ErrorIsNil)
    29  	assertConfigFlag(c, f, []string{"a.yaml", "b.yaml"}, nil)
    30  	c.Assert(f.Set("k1=v1"), jc.ErrorIsNil)
    31  	assertConfigFlag(c, f, []string{"a.yaml", "b.yaml"}, map[string]interface{}{"k1": "v1"})
    32  	c.Assert(f.Set("k1==v2"), jc.ErrorIsNil)
    33  	assertConfigFlag(c, f, []string{"a.yaml", "b.yaml"}, map[string]interface{}{"k1": "=v2"})
    34  	c.Assert(f.Set("k2=3"), jc.ErrorIsNil)
    35  	assertConfigFlag(c, f, []string{"a.yaml", "b.yaml"}, map[string]interface{}{"k1": "=v2", "k2": 3})
    36  }
    37  
    38  func (*FlagsSuite) TestConfigFlagSetErrors(c *gc.C) {
    39  	var f ConfigFlag
    40  	c.Assert(f.Set(""), gc.ErrorMatches, "empty string not valid")
    41  	c.Assert(f.Set("x=!"), gc.ErrorMatches, "yaml: did not find URI escaped octet")
    42  }
    43  
    44  func (*FlagsSuite) TestConfigFlagString(c *gc.C) {
    45  	var f ConfigFlag
    46  	c.Assert(f.String(), gc.Equals, "")
    47  	f.files = append(f.files, "a.yaml")
    48  	c.Assert(f.String(), gc.Equals, "a.yaml")
    49  	f.files = append(f.files, "b.yaml")
    50  	c.Assert(f.String(), gc.Equals, "a.yaml b.yaml")
    51  	f.files = append(f.files, "x=y")
    52  	c.Assert(f.String(), gc.Equals, "a.yaml b.yaml x=y")
    53  	f.files = append(f.files, "zz=y")
    54  	c.Assert(f.String(), gc.Equals, "a.yaml b.yaml x=y zz=y")
    55  }
    56  
    57  func (*FlagsSuite) TestConfigFlagReadAttrs(c *gc.C) {
    58  	tmpdir := c.MkDir()
    59  	configFile1 := filepath.Join(tmpdir, "config-1.yaml")
    60  	configFile2 := filepath.Join(tmpdir, "config-2.yaml")
    61  	err := ioutil.WriteFile(configFile1, []byte(`over: "'n'out"`+"\n"), 0644)
    62  	c.Assert(err, jc.ErrorIsNil)
    63  	err = ioutil.WriteFile(configFile2, []byte(`over: "'n'under"`+"\n"), 0644)
    64  	c.Assert(err, jc.ErrorIsNil)
    65  
    66  	var f ConfigFlag
    67  	assertConfigFlagReadAttrs(c, f, map[string]interface{}{})
    68  	f.files = append(f.files, configFile1)
    69  	assertConfigFlagReadAttrs(c, f, map[string]interface{}{"over": "'n'out"})
    70  	f.files = append(f.files, configFile2)
    71  	assertConfigFlagReadAttrs(c, f, map[string]interface{}{"over": "'n'under"})
    72  	f.attrs = map[string]interface{}{"over": "ridden"}
    73  	assertConfigFlagReadAttrs(c, f, map[string]interface{}{"over": "ridden"})
    74  }
    75  
    76  func (*FlagsSuite) TestConfigFlagReadAttrsErrors(c *gc.C) {
    77  	tmpdir := c.MkDir()
    78  	configFile := filepath.Join(tmpdir, "config.yaml")
    79  
    80  	var f ConfigFlag
    81  	f.files = append(f.files, configFile)
    82  	ctx := testing.Context(c)
    83  	attrs, err := f.ReadAttrs(ctx)
    84  	c.Assert(errors.Cause(err), jc.Satisfies, os.IsNotExist)
    85  	c.Assert(attrs, gc.IsNil)
    86  }
    87  
    88  func assertConfigFlag(c *gc.C, f ConfigFlag, files []string, attrs map[string]interface{}) {
    89  	c.Assert(f.files, jc.DeepEquals, files)
    90  	c.Assert(f.attrs, jc.DeepEquals, attrs)
    91  }
    92  
    93  func assertConfigFlagReadAttrs(c *gc.C, f ConfigFlag, expect map[string]interface{}) {
    94  	ctx := testing.Context(c)
    95  	attrs, err := f.ReadAttrs(ctx)
    96  	c.Assert(err, jc.ErrorIsNil)
    97  	c.Assert(attrs, jc.DeepEquals, expect)
    98  }