@@ -160,135 +160,6 @@ public void Equals()
160160
161161 }
162162
163- [ TestMethod ]
164- public void ToString_NoFormatString ( )
165- {
166- // Test basic ToString() without format string (uses "G" format by default)
167- float value = 0 ;
168- Assert . AreEqual ( "0" , value . ToString ( ) , "0.ToString() failed" ) ;
169-
170- value = 123 ;
171- Assert . AreEqual ( "123" , value . ToString ( ) , "123.ToString() failed" ) ;
172-
173- value = - 123 ;
174- Assert . AreEqual ( "-123" , value . ToString ( ) , "-123.ToString() failed" ) ;
175-
176- value = 123.456f ;
177- Assert . AreEqual ( "123.456" , value . ToString ( ) , "123.456f.ToString() failed" ) ;
178-
179- value = - 123.456f ;
180- Assert . AreEqual ( "-123.456" , value . ToString ( ) , "-123.456f.ToString() failed" ) ;
181-
182- value = 0.1f ;
183- Assert . AreEqual ( "0.1" , value . ToString ( ) , "0.1f.ToString() failed" ) ;
184-
185- value = - 0.1f ;
186- Assert . AreEqual ( "-0.1" , value . ToString ( ) , "-0.1f.ToString() failed" ) ;
187-
188- value = 1234567.89f ;
189- Assert . AreEqual ( "1234567.89" , value . ToString ( ) , "1234567.89f.ToString() failed" ) ;
190-
191- value = - 1234567.89f ;
192- Assert . AreEqual ( "-1234567.89" , value . ToString ( ) , "-1234567.89f.ToString() failed" ) ;
193- }
194-
195- [ TestMethod ]
196- public void ToString_SpecialValues ( )
197- {
198- // Test special values
199- Assert . AreEqual ( "NaN" , float . NaN . ToString ( ) , "NaN.ToString() failed" ) ;
200- Assert . AreEqual ( "Infinity" , float . PositiveInfinity . ToString ( ) , "PositiveInfinity.ToString() failed" ) ;
201- Assert . AreEqual ( "-Infinity" , float . NegativeInfinity . ToString ( ) , "NegativeInfinity.ToString() failed" ) ;
202- }
203-
204- [ TestMethod ]
205- public void ToString_ZeroValues ( )
206- {
207- // Test zero and negative zero
208- float zero = 0.0f ;
209- Assert . AreEqual ( "0" , zero . ToString ( ) , "0.0f.ToString() failed" ) ;
210-
211- float negativeZero = - 0.0f ;
212- Assert . AreEqual ( "0" , negativeZero . ToString ( ) , "-0.0f.ToString() failed" ) ;
213- }
214-
215- [ TestMethod ]
216- public void ToString_SmallValues ( )
217- {
218- // Test very small values
219- float value = 0.0001f ;
220- Assert . AreEqual ( "0.0001" , value . ToString ( ) , "0.0001f.ToString() failed" ) ;
221-
222- value = - 0.0001f ;
223- Assert . AreEqual ( "-0.0001" , value . ToString ( ) , "-0.0001f.ToString() failed" ) ;
224-
225- value = 1e-10f ;
226- Assert . AreEqual ( "1E-10" , value . ToString ( ) , "1e-10f.ToString() failed" ) ;
227-
228- value = - 1e-10f ;
229- Assert . AreEqual ( "-1E-10" , value . ToString ( ) , "-1e-10f.ToString() failed" ) ;
230- }
231-
232- [ TestMethod ]
233- public void ToString_LargeValues ( )
234- {
235- // Test large values
236- float value = 1e10f ;
237- Assert . AreEqual ( "10000000000" , value . ToString ( ) , "1e10f.ToString() failed" ) ;
238-
239- value = - 1e10f ;
240- Assert . AreEqual ( "-10000000000" , value . ToString ( ) , "-1e10f.ToString() failed" ) ;
241-
242- value = 1.23456789e15f ;
243- string result = value . ToString ( ) ;
244- Assert . IsTrue ( result . Length > 0 , "ToString() should return a non-empty string" ) ;
245- }
246-
247- [ TestMethod ]
248- public void ToString_ScientificNotation ( )
249- {
250- // Test values that should use scientific notation in default format
251- float value = 1.23e20f ;
252- string result = value . ToString ( ) ;
253- Assert . IsTrue ( result . Contains ( "E" ) || result . Contains ( "e" ) , "1.23e20f.ToString() should use scientific notation" ) ;
254-
255- value = - 1.23e20f ;
256- result = value . ToString ( ) ;
257- Assert . IsTrue ( result . Contains ( "E" ) || result . Contains ( "e" ) , "-1.23e20f.ToString() should use scientific notation" ) ;
258-
259- value = 1.23e-20f ;
260- result = value . ToString ( ) ;
261- Assert . IsTrue ( result . Contains ( "E" ) || result . Contains ( "e" ) , "1.23e-20f.ToString() should use scientific notation" ) ;
262- }
263-
264- [ TestMethod ]
265- public void ToString_RoundingBehavior ( )
266- {
267- // Test rounding behavior
268- float value = 1.23456789f ;
269- string result = value . ToString ( ) ;
270- Assert . IsTrue ( result . Length > 0 , "ToString() should return a non-empty string" ) ;
271- Assert . IsTrue ( result . Contains ( "." ) , "Decimal value ToString() should contain a decimal point" ) ;
272-
273- value = 0.123456789f ;
274- result = value . ToString ( ) ;
275- Assert . IsTrue ( result . StartsWith ( "0." ) , "Fractional value should start with '0.'" ) ;
276- }
277-
278- [ TestMethod ]
279- public void ToString_WithFormatString ( )
280- {
281- // Test ToString() with format string
282- float value = 123.456f ;
283- Assert . AreEqual ( "123.46" , value . ToString ( "F2" ) , "ToString('F2') failed" ) ;
284-
285- value = 1234.5f ;
286- Assert . AreEqual ( "1,234.50" , value . ToString ( "N2" ) , "ToString('N2') failed" ) ;
287-
288- value = 1.23456e10f ;
289- Assert . AreEqual ( "1.234560E+010" , value . ToString ( "E6" ) , "ToString('E6') failed" ) ;
290- }
291-
292163 private sealed class SingleTestData
293164 {
294165 public object F1 { get ; }
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