mocktopus 0.8.0

Mocking framework for Rust
Documentation 
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

use super::*;

struct Struct(u8);

#[mockable]
impl Struct {
    async fn static_method(arg: bool) -> String {
        format!("{}", arg)
    }

    async fn ref_method(&self, arg: bool) -> String {
        format!("{} {}", self.0, arg)
    }

    async fn ref_mut_method(&mut self, arg: bool) -> String {
        self.0 *= 2;
        format!("{} {}", self.0, arg)
    }

    async fn val_method(self, arg: bool) -> String {
        format!("{} {}", self.0, arg)
    }
}

mod and_async_method_is_static {
    use super::*;

    #[tokio::test]
    async fn and_not_mocked_then_runs_normally() {
        assert_eq!("true", Struct::static_method(true).await);
    }

    #[tokio::test]
    async fn and_continue_mocked_then_runs_with_modified_args() {
        unsafe {
            Struct::static_method.mock_raw(|a| MockResult::Continue((!a,)));
        }

        assert_eq!("false", Struct::static_method(true).await);
    }

    #[tokio::test]
    async fn and_return_mocked_then_returns_mocking_result() {
        unsafe {
            Struct::static_method
                .mock_raw(|a| MockResult::Return(Box::pin(async move { format!("mocked {}", a) })));
        }

        assert_eq!("mocked true", Struct::static_method(true).await);
    }
}

mod and_method_is_ref_method {
    use super::*;

    #[tokio::test]
    async fn and_not_mocked_then_runs_normally() {
        assert_eq!("2 true", Struct(2).ref_method(true).await);
    }

    #[tokio::test]
    async fn and_continue_mocked_then_runs_with_modified_args() {
        let struct_2 = Struct(2);
        let struct_3 = Struct(3);
        unsafe {
            Struct::ref_method.mock_raw(|_, b| MockResult::Continue((&struct_3, !b)));
        }

        assert_eq!("3 false", struct_2.ref_method(true).await);
        assert_eq!(2, struct_2.0);
        assert_eq!(3, struct_3.0);
    }

    #[tokio::test]
    async fn and_return_mocked_then_returns_mocking_result() {
        let struct_2 = Struct(2);
        unsafe {
            Struct::ref_method.mock_raw(|a, b| {
                MockResult::Return(Box::pin(async move { format!("mocked {} {}", a.0, b) }))
            });
        }

        assert_eq!("mocked 2 true", struct_2.ref_method(true).await);
        assert_eq!(2, struct_2.0);
    }
}

mod and_async_method_is_ref_mut_method {
    use super::*;

    #[tokio::test]
    async fn and_not_mocked_then_runs_normally() {
        let mut struct_2 = Struct(2);

        assert_eq!("4 true", struct_2.ref_mut_method(true).await);
        assert_eq!(4, struct_2.0);
    }

    #[tokio::test]
    async fn and_continue_mocked_then_runs_with_modified_args() {
        let mut struct_2 = Struct(2);
        let struct_3 = Struct(3);
        unsafe {
            Struct::ref_mut_method.mock_raw(|_, b| MockResult::Continue((as_mut(&struct_3), !b)));
        }

        assert_eq!("6 false", struct_2.ref_mut_method(true).await);
        assert_eq!(2, struct_2.0);
        assert_eq!(6, struct_3.0);
    }

    #[tokio::test]
    async fn and_return_mocked_then_returns_mocking_result() {
        let mut struct_2 = Struct(2);
        unsafe {
            Struct::ref_mut_method.mock_raw(|a, b| {
                MockResult::Return(Box::pin(async move { format!("mocked {} {}", a.0, b) }))
            });
        }

        assert_eq!("mocked 2 true", struct_2.ref_mut_method(true).await);
        assert_eq!(2, struct_2.0);
    }
}

mod and_async_method_is_val_method {
    use super::*;

    #[tokio::test]
    async fn and_not_mocked_then_runs_normally() {
        assert_eq!("2 true", Struct(2).val_method(true).await);
    }

    #[tokio::test]
    async fn and_continue_mocked_then_runs_with_modified_args() {
        unsafe {
            Struct::val_method.mock_raw(move |_, b| MockResult::Continue((Struct(3), !b)));
        }

        assert_eq!("3 false", Struct(2).val_method(true).await);
    }

    #[tokio::test]
    async fn and_return_mocked_then_returns_mocking_result() {
        unsafe {
            Struct::val_method.mock_raw(|a, b| {
                MockResult::Return(Box::pin(async move { format!("mocked {} {}", a.0, b) }))
            });
        }

        assert_eq!("mocked 2 true", Struct(2).val_method(true).await);
    }
}