'assertEquals()' between objects of inconvertible types

Reports calls to assertion methods where the "expected" and "actual" arguments are of incompatible types.

Such calls often indicate that there is a bug in the test. This inspection checks the relevant JUnit, TestNG, and AssertJ methods.

Examples:

  assertEquals("1", 1);
  assertNotSame(new int[0], 0);

  // weak warning, may just test the equals() contract
  assertThat(foo).as("user type").isNotEqualTo(bar);

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AssertBetweenInconvertibleTypes

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Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Java, 243.23126

Last modified: 03 December 2024