test/minitest/test_minitest_assertions.rb in minitest-5.17.0 vs test/minitest/test_minitest_assertions.rb in minitest-5.18.0

@@ -1060,10 +1060,70 @@
     assert_triggered "Expected path 'blah' to exist." do
       @tc.assert_path_exists "blah"
     end
   end
 
+  def test_assert_pattern
+    if RUBY_VERSION > "3" then
+      @tc.assert_pattern do
+        exp = if RUBY_VERSION.start_with? "3.0"
+                "(eval):1: warning: One-line pattern matching is experimental, and the behavior may change in future versions of Ruby!\n"
+              else
+                ""
+              end
+        assert_output nil, exp do
+          eval "[1,2,3] => [Integer, Integer, Integer]" # eval to escape parser for ruby<3
+        end
+      end
+    else
+      @assertion_count = 0
+
+      assert_raises NotImplementedError do
+        @tc.assert_pattern do
+          # do nothing
+        end
+      end
+    end
+  end
+
+  def test_assert_pattern_traps_nomatchingpatternerror
+    skip unless RUBY_VERSION > "3"
+    exp = if RUBY_VERSION.start_with? "3.0" then
+            "[1, 2, 3]" # terrible error message!
+          else
+            /length mismatch/
+          end
+
+    assert_triggered exp do
+      @tc.assert_pattern do
+        capture_io do # 3.0 is noisy
+          eval "[1,2,3] => [Integer, Integer]" # eval to escape parser for ruby<3
+        end
+      end
+    end
+  end
+
+  def test_assert_pattern_raises_other_exceptions
+    skip unless RUBY_VERSION >= "3.0"
+
+    @assertion_count = 0
+
+    assert_raises RuntimeError do
+      @tc.assert_pattern do
+        raise "boom"
+      end
+    end
+  end
+
+  def test_assert_pattern_with_no_block
+    skip unless RUBY_VERSION >= "3.0"
+
+    assert_triggered "assert_pattern requires a block to capture errors." do
+      @tc.assert_pattern
+    end
+  end
+
   def test_capture_io
     @assertion_count = 0
 
     non_verbose do
       out, err = capture_io do
@@ -1309,9 +1369,59 @@
   end
 
   def test_refute_operator_triggered
     assert_triggered "Expected 2 to not be > 1." do
       @tc.refute_operator 2, :>, 1
+    end
+  end
+
+  def test_refute_pattern
+    if RUBY_VERSION >= "3.0"
+      @tc.refute_pattern do
+        capture_io do # 3.0 is noisy
+          eval "[1,2,3] => [Integer, Integer, String]"
+        end
+      end
+    else
+      @assertion_count = 0
+
+      assert_raises NotImplementedError do
+        @tc.refute_pattern do
+          eval "[1,2,3] => [Integer, Integer, String]"
+        end
+      end
+    end
+  end
+
+  def test_refute_pattern_expects_nomatchingpatternerror
+    skip unless RUBY_VERSION > "3"
+
+    assert_triggered(/NoMatchingPatternError expected, but nothing was raised./) do
+      @tc.refute_pattern do
+        capture_io do # 3.0 is noisy
+          eval "[1,2,3] => [Integer, Integer, Integer]"
+        end
+      end
+    end
+  end
+
+  def test_refute_pattern_raises_other_exceptions
+    skip unless RUBY_VERSION >= "3.0"
+
+    @assertion_count = 0
+
+    assert_raises RuntimeError do
+      @tc.refute_pattern do
+        raise "boom"
+      end
+    end
+  end
+
+  def test_refute_pattern_with_no_block
+    skip unless RUBY_VERSION >= "3.0"
+
+    assert_triggered "refute_pattern requires a block to capture errors." do
+      @tc.refute_pattern
     end
   end
 
   def test_refute_predicate
     @tc.refute_predicate "42", :empty?