test_erb.rb: improve assertions

* test/erb/test_erb.rb: improve failure messages with
  assert_respond_to and assert_not_respond_to.

* test/erb/test_erb.rb: use assert_raise instead of assert(false).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53683 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 26 insertions, 38 deletions

diff --git a/test/erb/test_erb.rb b/test/erb/test_erb.rb
index 97f45af73d..f80e0e947b 100644
--- a/test/erb/test_erb.rb
+++ b/test/erb/test_erb.rb
@@ -203,13 +203,13 @@ EOS
     erb = @erb.new('hello')
     cls = erb.def_class
     assert_equal(Object, cls.superclass)
-    assert(cls.new.respond_to?('result'))
+    assert_respond_to(cls.new, 'result')
     cls = erb.def_class(Foo)
     assert_equal(Foo, cls.superclass)
-    assert(cls.new.respond_to?('result'))
+    assert_respond_to(cls.new, 'result')
     cls = erb.def_class(Object, 'erb')
     assert_equal(Object, cls.superclass)
-    assert(cls.new.respond_to?('erb'))
+    assert_respond_to(cls.new, 'erb')
   end
 
   def test_percent
@@ -262,21 +262,21 @@ EOS
       fname = File.join(File.dirname(File.expand_path(__FILE__)), 'hello.erb')
       def_erb_method('hello', fname)
     end
-    assert(klass.new.respond_to?('hello'))
+    assert_respond_to(klass.new, 'hello')
 
-    assert(! klass.new.respond_to?('hello_world'))
+    assert_not_respond_to(klass.new, 'hello_world')
     erb = @erb.new('hello, world')
     klass.module_eval do
       def_erb_method('hello_world', erb)
     end
-    assert(klass.new.respond_to?('hello_world'))
+    assert_respond_to(klass.new, 'hello_world')
   end
 
   def test_def_method_without_filename
     klass = Class.new
     erb = ERB.new("<% raise ::TestERB::MyError %>")
     erb.filename = "test filename"
-    assert(! klass.new.respond_to?('my_error'))
+    assert_not_respond_to(klass.new, 'my_error')
     erb.def_method(klass, 'my_error')
     e = assert_raise(::TestERB::MyError) {
        klass.new.my_error
@@ -288,7 +288,7 @@ EOS
     klass = Class.new
     erb = ERB.new("<% raise ::TestERB::MyError %>")
     erb.filename = "test filename"
-    assert(! klass.new.respond_to?('my_error'))
+    assert_not_respond_to(klass.new, 'my_error')
     erb.def_method(klass, 'my_error', 'test fname')
     e = assert_raise(::TestERB::MyError) {
        klass.new.my_error
@@ -342,12 +342,10 @@ Hello,\s
 EOS
 
     erb = ERB.new(src, nil, '%')
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):4\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):4\b/, e.backtrace[0].to_s)
 
     src = <<EOS
 %>
@@ -389,28 +387,22 @@ Hello,\s
 EOS
 
     erb = ERB.new(src)
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):5\b/, e.backtrace[0].to_s)
 
     erb = ERB.new(src, nil, '>')
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):5\b/, e.backtrace[0].to_s)
 
     erb = ERB.new(src, nil, '<>')
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):5\b/, e.backtrace[0].to_s)
 
     src = <<EOS
 % y = 'Hello'
@@ -421,20 +413,16 @@ EOS
 EOS
 
     erb = ERB.new(src, nil, '-')
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):5\b/, e.backtrace[0].to_s)
 
     erb = ERB.new(src, nil, '%-')
-    begin
+    e = assert_raise(RuntimeError) {
       erb.result
-      assert(false)
-    rescue
-      assert_match(/\A\(erb\):5\b/, $@[0].to_s)
-    end
+    }
+    assert_match(/\A\(erb\):5\b/, e.backtrace[0].to_s)
   end
 
   def test_explicit