spec/models/user_role_spec.rb


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189

require 'rails_helper'

RSpec.describe UserRole, type: :model do
  subject { described_class.create(name: 'Foo', position: 1) }

  describe '#can?' do
    context 'with a single flag' do
      it 'returns true if any of them are present' do
        subject.permissions = UserRole::FLAGS[:manage_reports]
        expect(subject.can?(:manage_reports)).to be true
      end

      it 'returns false if it is not set' do
        expect(subject.can?(:manage_reports)).to be false
      end
    end

    context 'with multiple flags' do
      it 'returns true if any of them are present' do
        subject.permissions = UserRole::FLAGS[:manage_users]
        expect(subject.can?(:manage_reports, :manage_users)).to be true
      end

      it 'returns false if none of them are present' do
        expect(subject.can?(:manage_reports, :manage_users)).to be false
      end
    end

    context 'with an unknown flag' do
      it 'raises an error' do
        expect { subject.can?(:foo) }.to raise_error ArgumentError
      end
    end
  end

  describe '#overrides?' do
    it 'returns true if other role has lower position' do
      expect(subject.overrides?(described_class.new(position: subject.position - 1))).to be true
    end

    it 'returns true if other role is nil' do
      expect(subject.overrides?(nil)).to be true
    end

    it 'returns false if other role has higher position' do
      expect(subject.overrides?(described_class.new(position: subject.position + 1))).to be false
    end
  end

  describe '#permissions_as_keys' do
    before do
      subject.permissions = UserRole::FLAGS[:invite_users] | UserRole::FLAGS[:view_dashboard] | UserRole::FLAGS[:manage_reports]
    end

    it 'returns an array' do
      expect(subject.permissions_as_keys).to match_array %w(invite_users view_dashboard manage_reports)
    end
  end

  describe '#permissions_as_keys=' do
    let(:input) {}

    before do
      subject.permissions_as_keys = input
    end

    context 'with a single value' do
      let(:input) { %w(manage_users) }

      it 'sets permission flags' do
        expect(subject.permissions).to eq UserRole::FLAGS[:manage_users]
      end
    end

    context 'with multiple values' do
      let(:input) { %w(manage_users manage_reports) }

      it 'sets permission flags' do
        expect(subject.permissions).to eq UserRole::FLAGS[:manage_users] | UserRole::FLAGS[:manage_reports]
      end
    end

    context 'with an unknown value' do
      let(:input) { %w(foo) }

      it 'does not set permission flags' do
        expect(subject.permissions).to eq UserRole::Flags::NONE
      end
    end
  end

  describe '#computed_permissions' do
    context 'when the role is nobody' do
      let(:subject) { described_class.nobody }

      it 'returns none' do
        expect(subject.computed_permissions).to eq UserRole::Flags::NONE
      end
    end

    context 'when the role is everyone' do
      let(:subject) { described_class.everyone }

      it 'returns permissions' do
        expect(subject.computed_permissions).to eq subject.permissions
      end
    end

    context 'when role has the administrator flag' do
      before do
        subject.permissions = UserRole::FLAGS[:administrator]
      end

      it 'returns all permissions' do
        expect(subject.computed_permissions).to eq UserRole::Flags::ALL
      end
    end

    context do
      it 'returns permissions combined with the everyone role' do
        expect(subject.computed_permissions).to eq described_class.everyone.permissions
      end
    end
  end

  describe '.everyone' do
    subject { described_class.everyone }

    it 'returns a role' do
      expect(subject).to be_a(described_class)
    end

    it 'is identified as the everyone role' do
      expect(subject.everyone?).to be true
    end

    it 'has default permissions' do
      expect(subject.permissions).to eq UserRole::FLAGS[:invite_users]
    end

    it 'has negative position' do
      expect(subject.position).to eq(-1)
    end
  end

  describe '.nobody' do
    subject { described_class.nobody }

    it 'returns a role' do
      expect(subject).to be_a(described_class)
    end

    it 'is identified as the nobody role' do
      expect(subject.nobody?).to be true
    end

    it 'has no permissions' do
      expect(subject.permissions).to eq UserRole::Flags::NONE
    end

    it 'has negative position' do
      expect(subject.position).to eq(-1)
    end
  end

  describe '#everyone?' do
    it 'returns true when id is -99' do
      subject.id = -99
      expect(subject.everyone?).to be true
    end

    it 'returns false when id is not -99' do
      subject.id = 123
      expect(subject.everyone?).to be false
    end
  end

  describe '#nobody?' do
    it 'returns true when id is nil' do
      subject.id = nil
      expect(subject.nobody?).to be true
    end

    it 'returns false when id is not nil' do
      subject.id = 123
      expect(subject.nobody?).to be false
    end
  end
end