projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | #[test] |
| 2 | fn test_format_int() { | |
| 3 | // Formatting integers should select the right implementation based off | |
| 4 | // the type of the argument. Also, hex/octal/binary should be defined | |
| 5 | // for integers, but they shouldn't emit the negative sign. | |
| 532ac7d7 XL |
6 | assert_eq!(format!("{}", 1isize), "1"); |
| 7 | assert_eq!(format!("{}", 1i8), "1"); | |
| 8 | assert_eq!(format!("{}", 1i16), "1"); | |
| 9 | assert_eq!(format!("{}", 1i32), "1"); | |
| 10 | assert_eq!(format!("{}", 1i64), "1"); | |
| 11 | assert_eq!(format!("{}", -1isize), "-1"); | |
| 12 | assert_eq!(format!("{}", -1i8), "-1"); | |
| 13 | assert_eq!(format!("{}", -1i16), "-1"); | |
| 14 | assert_eq!(format!("{}", -1i32), "-1"); | |
| 15 | assert_eq!(format!("{}", -1i64), "-1"); | |
| 16 | assert_eq!(format!("{:?}", 1isize), "1"); | |
| 17 | assert_eq!(format!("{:?}", 1i8), "1"); | |
| 18 | assert_eq!(format!("{:?}", 1i16), "1"); | |
| 19 | assert_eq!(format!("{:?}", 1i32), "1"); | |
| 20 | assert_eq!(format!("{:?}", 1i64), "1"); | |
| 21 | assert_eq!(format!("{:b}", 1isize), "1"); | |
| 22 | assert_eq!(format!("{:b}", 1i8), "1"); | |
| 23 | assert_eq!(format!("{:b}", 1i16), "1"); | |
| 24 | assert_eq!(format!("{:b}", 1i32), "1"); | |
| 25 | assert_eq!(format!("{:b}", 1i64), "1"); | |
| 26 | assert_eq!(format!("{:x}", 1isize), "1"); | |
| 27 | assert_eq!(format!("{:x}", 1i8), "1"); | |
| 28 | assert_eq!(format!("{:x}", 1i16), "1"); | |
| 29 | assert_eq!(format!("{:x}", 1i32), "1"); | |
| 30 | assert_eq!(format!("{:x}", 1i64), "1"); | |
| 31 | assert_eq!(format!("{:X}", 1isize), "1"); | |
| 32 | assert_eq!(format!("{:X}", 1i8), "1"); | |
| 33 | assert_eq!(format!("{:X}", 1i16), "1"); | |
| 34 | assert_eq!(format!("{:X}", 1i32), "1"); | |
| 35 | assert_eq!(format!("{:X}", 1i64), "1"); | |
| 36 | assert_eq!(format!("{:o}", 1isize), "1"); | |
| 37 | assert_eq!(format!("{:o}", 1i8), "1"); | |
| 38 | assert_eq!(format!("{:o}", 1i16), "1"); | |
| 39 | assert_eq!(format!("{:o}", 1i32), "1"); | |
| 40 | assert_eq!(format!("{:o}", 1i64), "1"); | |
| 74b04a01 XL |
41 | assert_eq!(format!("{:e}", 1isize), "1e0"); |
| 42 | assert_eq!(format!("{:e}", 1i8), "1e0"); | |
| 43 | assert_eq!(format!("{:e}", 1i16), "1e0"); | |
| 44 | assert_eq!(format!("{:e}", 1i32), "1e0"); | |
| 45 | assert_eq!(format!("{:e}", 1i64), "1e0"); | |
| 46 | assert_eq!(format!("{:E}", 1isize), "1E0"); | |
| 47 | assert_eq!(format!("{:E}", 1i8), "1E0"); | |
| 48 | assert_eq!(format!("{:E}", 1i16), "1E0"); | |
| 49 | assert_eq!(format!("{:E}", 1i32), "1E0"); | |
| 50 | assert_eq!(format!("{:E}", 1i64), "1E0"); | |
| 1a4d82fc | 51 | |
| 532ac7d7 XL |
52 | assert_eq!(format!("{}", 1usize), "1"); |
| 53 | assert_eq!(format!("{}", 1u8), "1"); | |
| 54 | assert_eq!(format!("{}", 1u16), "1"); | |
| 55 | assert_eq!(format!("{}", 1u32), "1"); | |
| 56 | assert_eq!(format!("{}", 1u64), "1"); | |
| 57 | assert_eq!(format!("{:?}", 1usize), "1"); | |
| 58 | assert_eq!(format!("{:?}", 1u8), "1"); | |
| 59 | assert_eq!(format!("{:?}", 1u16), "1"); | |
| 60 | assert_eq!(format!("{:?}", 1u32), "1"); | |
| 61 | assert_eq!(format!("{:?}", 1u64), "1"); | |
| 62 | assert_eq!(format!("{:b}", 1usize), "1"); | |
| 63 | assert_eq!(format!("{:b}", 1u8), "1"); | |
| 64 | assert_eq!(format!("{:b}", 1u16), "1"); | |
| 65 | assert_eq!(format!("{:b}", 1u32), "1"); | |
| 66 | assert_eq!(format!("{:b}", 1u64), "1"); | |
| 67 | assert_eq!(format!("{:x}", 1usize), "1"); | |
| 68 | assert_eq!(format!("{:x}", 1u8), "1"); | |
| 69 | assert_eq!(format!("{:x}", 1u16), "1"); | |
| 70 | assert_eq!(format!("{:x}", 1u32), "1"); | |
| 71 | assert_eq!(format!("{:x}", 1u64), "1"); | |
| 72 | assert_eq!(format!("{:X}", 1usize), "1"); | |
| 73 | assert_eq!(format!("{:X}", 1u8), "1"); | |
| 74 | assert_eq!(format!("{:X}", 1u16), "1"); | |
| 75 | assert_eq!(format!("{:X}", 1u32), "1"); | |
| 76 | assert_eq!(format!("{:X}", 1u64), "1"); | |
| 77 | assert_eq!(format!("{:o}", 1usize), "1"); | |
| 78 | assert_eq!(format!("{:o}", 1u8), "1"); | |
| 79 | assert_eq!(format!("{:o}", 1u16), "1"); | |
| 80 | assert_eq!(format!("{:o}", 1u32), "1"); | |
| 81 | assert_eq!(format!("{:o}", 1u64), "1"); | |
| 74b04a01 XL |
82 | assert_eq!(format!("{:e}", 1u8), "1e0"); |
| 83 | assert_eq!(format!("{:e}", 1u16), "1e0"); | |
| 84 | assert_eq!(format!("{:e}", 1u32), "1e0"); | |
| 85 | assert_eq!(format!("{:e}", 1u64), "1e0"); | |
| 86 | assert_eq!(format!("{:E}", 1u8), "1E0"); | |
| 87 | assert_eq!(format!("{:E}", 1u16), "1E0"); | |
| 88 | assert_eq!(format!("{:E}", 1u32), "1E0"); | |
| 89 | assert_eq!(format!("{:E}", 1u64), "1E0"); | |
| 1a4d82fc JJ |
90 | |
| 91 | // Test a larger number | |
| 532ac7d7 XL |
92 | assert_eq!(format!("{:b}", 55), "110111"); |
| 93 | assert_eq!(format!("{:o}", 55), "67"); | |
| 94 | assert_eq!(format!("{}", 55), "55"); | |
| 95 | assert_eq!(format!("{:x}", 55), "37"); | |
| 96 | assert_eq!(format!("{:X}", 55), "37"); | |
| 74b04a01 XL |
97 | assert_eq!(format!("{:e}", 55), "5.5e1"); |
| 98 | assert_eq!(format!("{:E}", 55), "5.5E1"); | |
| 99 | assert_eq!(format!("{:e}", 10000000000u64), "1e10"); | |
| 100 | assert_eq!(format!("{:E}", 10000000000u64), "1E10"); | |
| 101 | assert_eq!(format!("{:e}", 10000000001u64), "1.0000000001e10"); | |
| 102 | assert_eq!(format!("{:E}", 10000000001u64), "1.0000000001E10"); | |
| 103 | } | |
| 104 | ||
| 105 | #[test] | |
| 106 | fn test_format_int_exp_limits() { | |
| 74b04a01 XL |
107 | assert_eq!(format!("{:e}", i8::MIN), "-1.28e2"); |
| 108 | assert_eq!(format!("{:e}", i8::MAX), "1.27e2"); | |
| 109 | assert_eq!(format!("{:e}", i16::MIN), "-3.2768e4"); | |
| 110 | assert_eq!(format!("{:e}", i16::MAX), "3.2767e4"); | |
| 111 | assert_eq!(format!("{:e}", i32::MIN), "-2.147483648e9"); | |
| 112 | assert_eq!(format!("{:e}", i32::MAX), "2.147483647e9"); | |
| 113 | assert_eq!(format!("{:e}", i64::MIN), "-9.223372036854775808e18"); | |
| 114 | assert_eq!(format!("{:e}", i64::MAX), "9.223372036854775807e18"); | |
| 115 | assert_eq!(format!("{:e}", i128::MIN), "-1.70141183460469231731687303715884105728e38"); | |
| 116 | assert_eq!(format!("{:e}", i128::MAX), "1.70141183460469231731687303715884105727e38"); | |
| 117 | ||
| 118 | assert_eq!(format!("{:e}", u8::MAX), "2.55e2"); | |
| 119 | assert_eq!(format!("{:e}", u16::MAX), "6.5535e4"); | |
| 120 | assert_eq!(format!("{:e}", u32::MAX), "4.294967295e9"); | |
| 121 | assert_eq!(format!("{:e}", u64::MAX), "1.8446744073709551615e19"); | |
| 122 | assert_eq!(format!("{:e}", u128::MAX), "3.40282366920938463463374607431768211455e38"); | |
| 123 | } | |
| 124 | ||
| 125 | #[test] | |
| 126 | fn test_format_int_exp_precision() { | |
| 74b04a01 XL |
127 | //test that float and integer match |
| 128 | let big_int: u32 = 314_159_265; | |
| 129 | assert_eq!(format!("{:.1e}", big_int), format!("{:.1e}", f64::from(big_int))); | |
| 130 | ||
| 131 | //test adding precision | |
| 132 | assert_eq!(format!("{:.10e}", i8::MIN), "-1.2800000000e2"); | |
| 133 | assert_eq!(format!("{:.10e}", i16::MIN), "-3.2768000000e4"); | |
| 134 | assert_eq!(format!("{:.10e}", i32::MIN), "-2.1474836480e9"); | |
| 135 | assert_eq!(format!("{:.20e}", i64::MIN), "-9.22337203685477580800e18"); | |
| 136 | assert_eq!(format!("{:.40e}", i128::MIN), "-1.7014118346046923173168730371588410572800e38"); | |
| 137 | ||
| 138 | //test rounding | |
| 139 | assert_eq!(format!("{:.1e}", i8::MIN), "-1.3e2"); | |
| 140 | assert_eq!(format!("{:.1e}", i16::MIN), "-3.3e4"); | |
| 141 | assert_eq!(format!("{:.1e}", i32::MIN), "-2.1e9"); | |
| 142 | assert_eq!(format!("{:.1e}", i64::MIN), "-9.2e18"); | |
| 143 | assert_eq!(format!("{:.1e}", i128::MIN), "-1.7e38"); | |
| 144 | ||
| 145 | //test huge precision | |
| 146 | assert_eq!(format!("{:.1000e}", 1), format!("1.{}e0", "0".repeat(1000))); | |
| 147 | //test zero precision | |
| 148 | assert_eq!(format!("{:.0e}", 1), format!("1e0",)); | |
| 149 | ||
| 150 | //test padding with precision (and sign) | |
| 151 | assert_eq!(format!("{:+10.3e}", 1), " +1.000e0"); | |
| 1a4d82fc JJ |
152 | } |
| 153 | ||
| 154 | #[test] | |
| 155 | fn test_format_int_zero() { | |
| 532ac7d7 XL |
156 | assert_eq!(format!("{}", 0), "0"); |
| 157 | assert_eq!(format!("{:?}", 0), "0"); | |
| 158 | assert_eq!(format!("{:b}", 0), "0"); | |
| 159 | assert_eq!(format!("{:o}", 0), "0"); | |
| 160 | assert_eq!(format!("{:x}", 0), "0"); | |
| 161 | assert_eq!(format!("{:X}", 0), "0"); | |
| 74b04a01 XL |
162 | assert_eq!(format!("{:e}", 0), "0e0"); |
| 163 | assert_eq!(format!("{:E}", 0), "0E0"); | |
| 85aaf69f | 164 | |
| 532ac7d7 XL |
165 | assert_eq!(format!("{}", 0u32), "0"); |
| 166 | assert_eq!(format!("{:?}", 0u32), "0"); | |
| 167 | assert_eq!(format!("{:b}", 0u32), "0"); | |
| 168 | assert_eq!(format!("{:o}", 0u32), "0"); | |
| 169 | assert_eq!(format!("{:x}", 0u32), "0"); | |
| 170 | assert_eq!(format!("{:X}", 0u32), "0"); | |
| 74b04a01 XL |
171 | assert_eq!(format!("{:e}", 0u32), "0e0"); |
| 172 | assert_eq!(format!("{:E}", 0u32), "0E0"); | |
| 1a4d82fc JJ |
173 | } |
| 174 | ||
| 175 | #[test] | |
| 176 | fn test_format_int_flags() { | |
| 532ac7d7 XL |
177 | assert_eq!(format!("{:3}", 1), " 1"); |
| 178 | assert_eq!(format!("{:>3}", 1), " 1"); | |
| 179 | assert_eq!(format!("{:>+3}", 1), " +1"); | |
| 180 | assert_eq!(format!("{:<3}", 1), "1 "); | |
| 181 | assert_eq!(format!("{:#}", 1), "1"); | |
| 182 | assert_eq!(format!("{:#x}", 10), "0xa"); | |
| 183 | assert_eq!(format!("{:#X}", 10), "0xA"); | |
| 184 | assert_eq!(format!("{:#5x}", 10), " 0xa"); | |
| 185 | assert_eq!(format!("{:#o}", 10), "0o12"); | |
| 186 | assert_eq!(format!("{:08x}", 10), "0000000a"); | |
| 187 | assert_eq!(format!("{:8x}", 10), " a"); | |
| 188 | assert_eq!(format!("{:<8x}", 10), "a "); | |
| 189 | assert_eq!(format!("{:>8x}", 10), " a"); | |
| 190 | assert_eq!(format!("{:#08x}", 10), "0x00000a"); | |
| 191 | assert_eq!(format!("{:08}", -10), "-0000010"); | |
| 192 | assert_eq!(format!("{:x}", !0u8), "ff"); | |
| 193 | assert_eq!(format!("{:X}", !0u8), "FF"); | |
| 194 | assert_eq!(format!("{:b}", !0u8), "11111111"); | |
| 195 | assert_eq!(format!("{:o}", !0u8), "377"); | |
| 196 | assert_eq!(format!("{:#x}", !0u8), "0xff"); | |
| 197 | assert_eq!(format!("{:#X}", !0u8), "0xFF"); | |
| 198 | assert_eq!(format!("{:#b}", !0u8), "0b11111111"); | |
| 199 | assert_eq!(format!("{:#o}", !0u8), "0o377"); | |
| 1a4d82fc JJ |
200 | } |
| 201 | ||
| 202 | #[test] | |
| 203 | fn test_format_int_sign_padding() { | |
| 532ac7d7 XL |
204 | assert_eq!(format!("{:+5}", 1), " +1"); |
| 205 | assert_eq!(format!("{:+5}", -1), " -1"); | |
| 206 | assert_eq!(format!("{:05}", 1), "00001"); | |
| 207 | assert_eq!(format!("{:05}", -1), "-0001"); | |
| 208 | assert_eq!(format!("{:+05}", 1), "+0001"); | |
| 209 | assert_eq!(format!("{:+05}", -1), "-0001"); | |
| 1a4d82fc JJ |
210 | } |
| 211 | ||
| 212 | #[test] | |
| 213 | fn test_format_int_twos_complement() { | |
| 532ac7d7 XL |
214 | assert_eq!(format!("{}", i8::MIN), "-128"); |
| 215 | assert_eq!(format!("{}", i16::MIN), "-32768"); | |
| 216 | assert_eq!(format!("{}", i32::MIN), "-2147483648"); | |
| 217 | assert_eq!(format!("{}", i64::MIN), "-9223372036854775808"); | |
| 1a4d82fc | 218 | } |
| 0531ce1d XL |
219 | |
| 220 | #[test] | |
| 221 | fn test_format_debug_hex() { | |
| 532ac7d7 XL |
222 | assert_eq!(format!("{:02x?}", b"Foo\0"), "[46, 6f, 6f, 00]"); |
| 223 | assert_eq!(format!("{:02X?}", b"Foo\0"), "[46, 6F, 6F, 00]"); | |
| 0531ce1d | 224 | } |