The difference between assertEquals and assertSame methods in JUnit

1) The number of interfaces provided is not exactly the same.
assertEquals supports boolean, long, int and other java primitiveType variables.
assertSame only supports Object.

2) The comparison logic is different, and the results may be different.
assertSame is a direct comparison of objects. assertEquals can use the comparison logic provided by the compared object to perform comparisons.
Under the same conditions, the running results of the two are not necessarily the same.
A brief explanation is as follows:
The comparison logic of assertEquals(Object A, Object B):
If A and B are both Null, return true. Otherwise, call A.equals(B) to determine.

Comparison logic of assertSame(Object A, Object B):
Judged by the result of A == B operation.

The difference between A.equals(B) and A==B is.
If A does not override the equals method of java.lang.Object,
Then the memory address comparison of the two java objects will be the same as the result of A==B.
If A overrides the equals method (such as GregorianCalendar, BigDecimal class),
The result of the comparison may not be the same as the result of A==B.

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