combined_matchers/
combined_matchers.rs

1mod common;
2use common::guard_test;
3use rest::prelude::*;
4use std::collections::HashMap;
5
6fn main() {
7    // Enable enhanced output for this example
8    config().enhanced_output(true).apply();
9
10    println!("FluentTest Example: Combined Matchers with Logical Chaining");
11
12    // Numeric matchers with AND and OR
13    let number = 42;
14    println!("\n--- Numeric assertions ---");
15
16    let success = guard_test(|| {
17        expect!(number).to_be_greater_than(30).and().to_be_less_than(50).and().to_be_even();
18    });
19
20    if success {
21        println!("✅ Verified number is between 30 and 50 and is even.");
22    }
23
24    // String matchers with AND
25    let greeting = "Hello, World!";
26    println!("\n--- String assertions ---");
27
28    let success = guard_test(|| {
29        expect!(greeting).to_contain("Hello").and().to_start_with("Hello").and().to_have_length(13);
30    });
31
32    if success {
33        println!("✅ Verified greeting contains 'Hello', starts with 'Hello', and has length 13.");
34    }
35
36    // Collection matchers with AND, OR, and NOT
37    let numbers = vec![1, 2, 3, 4, 5];
38    println!("\n--- Collection assertions ---");
39
40    let success = guard_test(|| {
41        expect!(&numbers).to_have_length(5).and().to_contain(3).and().not().to_be_empty();
42    });
43
44    if success {
45        println!("✅ Verified collection has 5 items including 3 and is not empty.");
46    }
47
48    // Option type with chaining
49    let maybe_value: Option<i32> = Some(42);
50    println!("\n--- Option assertions ---");
51
52    let success = guard_test(|| {
53        expect!(&maybe_value).to_be_some().and().to_contain(&42);
54    });
55
56    if success {
57        println!("✅ Verified Option is Some and contains 42.");
58    }
59
60    // Result type with chaining
61    let result: Result<i32, &str> = Ok(42);
62    println!("\n--- Result assertions ---");
63
64    let success = guard_test(|| {
65        expect!(&result).to_be_ok().and().to_contain_ok(&42);
66    });
67
68    if success {
69        println!("✅ Verified Result is Ok and contains 42.");
70    }
71
72    // HashMap with modifiers
73    let mut map = HashMap::new();
74    map.insert("key1", "value1");
75    map.insert("key2", "value2");
76    println!("\n--- HashMap assertions ---");
77
78    let success = guard_test(|| {
79        expect!(&map).to_have_length(2).and().to_contain_key("key1").and().to_contain_entry("key2", "value2");
80    });
81
82    if success {
83        println!("✅ Verified HashMap has 2 entries with the expected key-value pairs.");
84    }
85
86    // Combined complex assertion with AND, OR, and NOT
87    println!("\n--- Complex combined assertion ---");
88
89    let success = guard_test(|| {
90        expect!(number).to_be_greater_than(40).and().to_be_less_than(50).or().to_be_even();
91    });
92
93    let success2 = guard_test(|| {
94        expect!(&numbers).not().to_be_empty().and().to_contain(3).or().to_have_length(10);
95    });
96
97    if success && success2 {
98        println!("✅ Verified complex combined assertions with AND, OR, and NOT.");
99    }
100
101    println!("\nAll examples completed successfully!");
102}
combined_matchers/combined_matchers.rs

combined_matchers/
combined_matchers.rs
