tests/test_explain_assert.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 class MyClass
  16         var i = 12
  17         var s = "asdf"
  18         redef fun to_s do return "<{class_name} i:{i} s:{s}>"
  19 end
  20
  21 fun foo(v: nullable Int): nullable Int do
  22         print "foo"
  23         return v
  24 end
  25
  26 assert 1 == 1
  27 #alt1#assert 1 == "some string"
  28 #alt2#assert 1 == null
  29 #alt3#assert foo(12) == null
  30 #alt4#assert foo(null) != null
  31
  32 #alt5#var x = 0.0
  33 #alt5#var y = 1.0
  34 #alt5#assert x.is_approx(y, 0.5)
  35
  36 #alt6#assert not true
  37
  38 #alt7#var a = [true, false, true]
  39 #alt7#assert a[1]
  40
  41 #alt8#assert [0, 1, 2].is_empty
  42
  43 #alt9#assert (new MyClass) == 0
  44
  45 #alt10#var n = foo(null)
  46 #alt10#assert n != null and n.to_s == "crash" # Not explained
  47
  48 #alt11#assert not 1 == 1
  49 #alt12#assert 4 isa MyClass
  50
  51 #alt13#var f = false
  52 #alt13#assert f # Not explained