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| 1 | +using OpenShock.Common.Utils; |
| 2 | + |
| 3 | +namespace OpenShock.Common.Tests.Utils; |
| 4 | + |
| 5 | +public class DomainValidatorTests |
| 6 | +{ |
| 7 | + [Test] |
| 8 | + public async Task NullString_ReturnsFalse() |
| 9 | + { |
| 10 | + // Act |
| 11 | + var result = DomainValidator.IsValidDomain(null); |
| 12 | + |
| 13 | + // Assert |
| 14 | + await Assert.That(result).IsFalse(); |
| 15 | + } |
| 16 | + |
| 17 | + [Test] |
| 18 | + public async Task EmptyString_ReturnsFalse() |
| 19 | + { |
| 20 | + // Act |
| 21 | + var result = DomainValidator.IsValidDomain(""); |
| 22 | + |
| 23 | + // Assert |
| 24 | + await Assert.That(result).IsFalse(); |
| 25 | + } |
| 26 | + |
| 27 | + [Test] |
| 28 | + public async Task NoDot_ReturnsFalse() |
| 29 | + { |
| 30 | + // Act |
| 31 | + var result = DomainValidator.IsValidDomain("example"); |
| 32 | + |
| 33 | + // Assert |
| 34 | + await Assert.That(result).IsFalse(); |
| 35 | + } |
| 36 | + |
| 37 | + [Test] |
| 38 | + public async Task LeadingDot_ReturnsFalse() |
| 39 | + { |
| 40 | + // Act |
| 41 | + var result = DomainValidator.IsValidDomain(".example.com"); |
| 42 | + |
| 43 | + // Assert |
| 44 | + await Assert.That(result).IsFalse(); |
| 45 | + } |
| 46 | + |
| 47 | + [Test] |
| 48 | + public async Task TrailingDot_ReturnsFalse() |
| 49 | + { |
| 50 | + // Act |
| 51 | + var result = DomainValidator.IsValidDomain("example.com."); |
| 52 | + |
| 53 | + // Assert |
| 54 | + await Assert.That(result).IsFalse(); |
| 55 | + } |
| 56 | + |
| 57 | + [Test] |
| 58 | + public async Task ConsecutiveDots_ReturnsFalse() |
| 59 | + { |
| 60 | + // Act |
| 61 | + var result = DomainValidator.IsValidDomain("a..b.com"); |
| 62 | + |
| 63 | + // Assert |
| 64 | + await Assert.That(result).IsFalse(); |
| 65 | + } |
| 66 | + |
| 67 | + [Test] |
| 68 | + public async Task LabelTooLong_ReturnsFalse() |
| 69 | + { |
| 70 | + // Arrange: label with 64 chars (invalid), then ".com" |
| 71 | + var tooLong = new string('a', 64) + ".com"; |
| 72 | + |
| 73 | + // Act |
| 74 | + var result = DomainValidator.IsValidDomain(tooLong); |
| 75 | + |
| 76 | + // Assert |
| 77 | + await Assert.That(result).IsFalse(); |
| 78 | + } |
| 79 | + |
| 80 | + [Test] |
| 81 | + public async Task LabelStartingHyphen_ReturnsFalse() |
| 82 | + { |
| 83 | + // Act |
| 84 | + var result = DomainValidator.IsValidDomain("-abc.com"); |
| 85 | + |
| 86 | + // Assert |
| 87 | + await Assert.That(result).IsFalse(); |
| 88 | + } |
| 89 | + |
| 90 | + [Test] |
| 91 | + public async Task LabelEndingHyphen_ReturnsFalse() |
| 92 | + { |
| 93 | + // Act |
| 94 | + var result = DomainValidator.IsValidDomain("abc-.com"); |
| 95 | + |
| 96 | + // Assert |
| 97 | + await Assert.That(result).IsFalse(); |
| 98 | + } |
| 99 | + |
| 100 | + [Test] |
| 101 | + public async Task InvalidCharacters_ReturnsFalse() |
| 102 | + { |
| 103 | + // Act |
| 104 | + var r1 = DomainValidator.IsValidDomain("exa_mple.com"); |
| 105 | + var r2 = DomainValidator.IsValidDomain("examp le.com"); |
| 106 | + var r3 = DomainValidator.IsValidDomain("exam!ple.com"); |
| 107 | + |
| 108 | + // Assert |
| 109 | + await Assert.That(r1).IsFalse(); |
| 110 | + await Assert.That(r2).IsFalse(); |
| 111 | + await Assert.That(r3).IsFalse(); |
| 112 | + } |
| 113 | + |
| 114 | + [Test] |
| 115 | + public async Task TotalLengthOver253_ReturnsFalse() |
| 116 | + { |
| 117 | + // Arrange: construct >253 chars with dots |
| 118 | + // "a." repeated 200 times yields 400 chars; ensure clearly >253. |
| 119 | + var longHost = string.Join('.', Enumerable.Repeat("a", 130)); // 129 dots + 130 a's ~ 259 chars |
| 120 | + |
| 121 | + // Act |
| 122 | + var result = DomainValidator.IsValidDomain(longHost); |
| 123 | + |
| 124 | + // Assert |
| 125 | + await Assert.That(result).IsFalse(); |
| 126 | + } |
| 127 | + |
| 128 | + [Test] |
| 129 | + public async Task ValidAsciiLDH_ReturnsTrue() |
| 130 | + { |
| 131 | + // Act |
| 132 | + var r1 = DomainValidator.IsValidDomain("example.com"); |
| 133 | + var r2 = DomainValidator.IsValidDomain("a.b"); |
| 134 | + var r3 = DomainValidator.IsValidDomain("foo-bar.baz0"); |
| 135 | + var r4 = DomainValidator.IsValidDomain("xn--d1acufc.xn--p1ai"); // Punycode |
| 136 | + |
| 137 | + // Assert |
| 138 | + await Assert.That(r1).IsTrue(); |
| 139 | + await Assert.That(r2).IsTrue(); |
| 140 | + await Assert.That(r3).IsTrue(); |
| 141 | + await Assert.That(r4).IsTrue(); |
| 142 | + } |
| 143 | + |
| 144 | + [Test] |
| 145 | + public async Task HostMatchesCookieDomain_ExactMatch_ReturnsTrue() |
| 146 | + { |
| 147 | + // Act |
| 148 | + var result = DomainValidator.HostMatchesCookieDomain("example.com", "example.com"); |
| 149 | + |
| 150 | + // Assert |
| 151 | + await Assert.That(result).IsTrue(); |
| 152 | + } |
| 153 | + |
| 154 | + [Test] |
| 155 | + public async Task HostMatchesCookieDomain_SuffixLabelMatch_ReturnsTrue() |
| 156 | + { |
| 157 | + // Act |
| 158 | + var result = DomainValidator.HostMatchesCookieDomain("shop.foo.example.com".AsSpan(), "example.com".AsSpan()); |
| 159 | + |
| 160 | + // Assert |
| 161 | + await Assert.That(result).IsTrue(); |
| 162 | + } |
| 163 | + |
| 164 | + [Test] |
| 165 | + public async Task HostMatchesCookieDomain_PartialSuffixNoBoundary_ReturnsFalse() |
| 166 | + { |
| 167 | + // Act |
| 168 | + var result = DomainValidator.HostMatchesCookieDomain("badexample.com", "example.com"); |
| 169 | + |
| 170 | + // Assert |
| 171 | + await Assert.That(result).IsFalse(); |
| 172 | + } |
| 173 | + |
| 174 | + [Test] |
| 175 | + public async Task HostMatchesCookieDomain_CookieLongerThanHost_ReturnsFalse() |
| 176 | + { |
| 177 | + // Act |
| 178 | + var result = DomainValidator.HostMatchesCookieDomain("example.com", "foo.example.com"); |
| 179 | + |
| 180 | + // Assert |
| 181 | + await Assert.That(result).IsFalse(); |
| 182 | + } |
| 183 | + |
| 184 | + [Test] |
| 185 | + public async Task HostMatchesCookieDomain_InvalidHost_ReturnsFalse() |
| 186 | + { |
| 187 | + // Act |
| 188 | + var result = DomainValidator.HostMatchesCookieDomain("example", "example.com"); // host without dot is invalid |
| 189 | + |
| 190 | + // Assert |
| 191 | + await Assert.That(result).IsFalse(); |
| 192 | + } |
| 193 | + |
| 194 | + [Test] |
| 195 | + public async Task HostMatchesCookieDomain_CaseInsensitive_ReturnsTrue() |
| 196 | + { |
| 197 | + // Act |
| 198 | + var result = DomainValidator.HostMatchesCookieDomain("SHOP.Foo.Example.COM", "example.com"); |
| 199 | + |
| 200 | + // Assert |
| 201 | + await Assert.That(result).IsTrue(); |
| 202 | + } |
| 203 | + |
| 204 | + // ---- GetBestMatchingCookieDomain ---- |
| 205 | + |
| 206 | + [Test] |
| 207 | + public async Task GetBestMatchingCookieDomain_PicksMostSpecific() |
| 208 | + { |
| 209 | + // Arrange |
| 210 | + var list = "example.com,foo.example.com,bar.com"; |
| 211 | + |
| 212 | + // Act |
| 213 | + var best = DomainValidator.GetBestMatchingCookieDomain("shop.foo.example.com", list); |
| 214 | + |
| 215 | + // Assert |
| 216 | + await Assert.That(best).IsEqualTo("foo.example.com"); |
| 217 | + } |
| 218 | + |
| 219 | + [Test] |
| 220 | + public async Task GetBestMatchingCookieDomain_ExactMatchBeatsShorterSuffix() |
| 221 | + { |
| 222 | + // Arrange |
| 223 | + var list = "example.com,shop.foo.example.com"; |
| 224 | + |
| 225 | + // Act |
| 226 | + var best = DomainValidator.GetBestMatchingCookieDomain("shop.foo.example.com", list); |
| 227 | + |
| 228 | + // Assert |
| 229 | + await Assert.That(best).IsEqualTo("shop.foo.example.com"); |
| 230 | + } |
| 231 | + |
| 232 | + [Test] |
| 233 | + public async Task GetBestMatchingCookieDomain_EmptySegmentsIgnored() |
| 234 | + { |
| 235 | + // Arrange |
| 236 | + var list = ",,example.com,,foo.example.com,,"; |
| 237 | + |
| 238 | + // Act |
| 239 | + var best = DomainValidator.GetBestMatchingCookieDomain("shop.foo.example.com", list); |
| 240 | + |
| 241 | + // Assert |
| 242 | + await Assert.That(best).IsEqualTo("foo.example.com"); |
| 243 | + } |
| 244 | + |
| 245 | + [Test] |
| 246 | + public async Task GetBestMatchingCookieDomain_InvalidDomainsIgnored() |
| 247 | + { |
| 248 | + // Arrange: includes invalid ".example.com" and "exa_mple.com" |
| 249 | + var list = ".example.com,exa_mple.com,example.com"; |
| 250 | + |
| 251 | + // Act |
| 252 | + var best = DomainValidator.GetBestMatchingCookieDomain("shop.example.com", list); |
| 253 | + |
| 254 | + // Assert |
| 255 | + await Assert.That(best).IsEqualTo("example.com"); |
| 256 | + } |
| 257 | + |
| 258 | + [Test] |
| 259 | + public async Task GetBestMatchingCookieDomain_NoMatch_ReturnsNull() |
| 260 | + { |
| 261 | + // Arrange |
| 262 | + var list = "foo.com,bar.net"; |
| 263 | + |
| 264 | + // Act |
| 265 | + var best = DomainValidator.GetBestMatchingCookieDomain("example.com", list); |
| 266 | + |
| 267 | + // Assert |
| 268 | + await Assert.That(best).IsNull(); |
| 269 | + } |
| 270 | + |
| 271 | + [Test] |
| 272 | + public async Task GetBestMatchingCookieDomain_HostInvalid_ReturnsNull() |
| 273 | + { |
| 274 | + // Arrange |
| 275 | + var list = "example.com,foo.example.com"; |
| 276 | + |
| 277 | + // Act |
| 278 | + var best = DomainValidator.GetBestMatchingCookieDomain("example", list); |
| 279 | + |
| 280 | + // Assert |
| 281 | + await Assert.That(best).IsNull(); |
| 282 | + } |
| 283 | + |
| 284 | + [Test] |
| 285 | + public async Task GetBestMatchingCookieDomain_WhitespaceNotTrimmedInCurrentImplementation_SkipsEntry() |
| 286 | + { |
| 287 | + // Arrange: first entry has spaces (invalid for current impl), second is valid and more specific. |
| 288 | + var list = " example.com ,foo.example.com"; |
| 289 | + |
| 290 | + // Use a host that matches *both* example.com and foo.example.com |
| 291 | + var best = DomainValidator.GetBestMatchingCookieDomain("shop.foo.example.com", list); |
| 292 | + |
| 293 | + // Assert: because the first is invalid (whitespace not trimmed), the best is foo.example.com |
| 294 | + await Assert.That(best).IsEqualTo("foo.example.com"); |
| 295 | + } |
| 296 | + |
| 297 | + // ---- Additional boundary checks via HostMatchesCookieDomain ---- |
| 298 | + |
| 299 | + [Test] |
| 300 | + public async Task HostBoundary_ChecksLabelBoundary() |
| 301 | + { |
| 302 | + // "ample.com" is substring but not a label-suffix of "example.com" |
| 303 | + var r1 = DomainValidator.HostMatchesCookieDomain("example.com", "ample.com"); |
| 304 | + var r2 = DomainValidator.HostMatchesCookieDomain("xample.com", "ample.com"); |
| 305 | + var r3 = DomainValidator.HostMatchesCookieDomain("fooample.com", "ample.com"); |
| 306 | + |
| 307 | + await Assert.That(r1).IsFalse(); |
| 308 | + await Assert.That(r2).IsFalse(); |
| 309 | + await Assert.That(r3).IsFalse(); |
| 310 | + } |
| 311 | +} |
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