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diff --git a/docs/WriteYourTests/Reference/LuaUnitAssertionFunctions/0_GeneralAssertions.md b/docs/WriteYourTests/Reference/LuaUnitAssertionFunctions/0_GeneralAssertions.md new file mode 100644 index 0000000..4a719b6 --- /dev/null +++ b/docs/WriteYourTests/Reference/LuaUnitAssertionFunctions/0_GeneralAssertions.md @@ -0,0 +1,32 @@ +# General Assertions + +* **_AFT.assertEquals(actual, expected)** + + Assert that two values are equal. + + For tables, the comparison is a deep comparison : + + * number of elements must be the same + * tables must contain the same keys + * each key must contain the same values. The values are also compared recursively with deep comparison. + + LuaUnit provides other table-related assertions, see [Table assertions](http://luaunit.readthedocs.io/en/luaunit_v3_2_1/#assert-table) + +* **_AFT.assertNotEquals(actual, expected)** + + Assert that two values are different. The assertion fails if the two values are identical. + + It also uses table deep comparison. + +* **_AFT.assertAlmostEquals(actual, expected, margin)** + + Assert that two floating point numbers are almost equal. + + When comparing floating point numbers, strict equality does not work. + Computer arithmetic is so that an operation that mathematically yields + 1.00000000 might yield 0.999999999999 in lua . That’s why you need an + almost equals comparison, where you specify the error margin. + +* **_AFT.assertNotAlmostEquals(actual, expected, margin)** + + Assert that two floating point numbers are not almost equal.
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