Simplify mruby-inline-struct tests.

`gcc -O3` raises error on truncation using `snprintf`.

mrbgems/mruby-inline-struct/test/inline.c

@@ -11,17 +11,17 @@ istruct_test_initialize(mrb_state *mrb, mrb_value self)
   mrb_value object;
   mrb_get_args(mrb, "o", &object);
 
-  if (mrb_float_p(object))
-  {
-    snprintf(string, size, "float(%.3f)", mrb_float(object));
+  if (mrb_float_p(object)) {
+    strncpy(string, "float", size-1);
   }
-  else if (mrb_fixnum_p(object))
-  {
-    snprintf(string, size, "fixnum(%" MRB_PRId ")", mrb_fixnum(object));
+  else if (mrb_fixnum_p(object)) {
+    strncpy(string, "fixnum", size-1);
   }
-  else if (mrb_string_p(object))
-  {
-    snprintf(string, size, "string(%s)", mrb_string_value_cstr(mrb, &object));
+  else if (mrb_string_p(object)) {
+    strncpy(string, "string", size-1);
+  }
+  else {
+    strncpy(string, "anything", size-1);
   }
 
   string[size - 1] = 0; // force NULL at the end

mrbgems/mruby-inline-struct/test/inline.rb

@@ -17,14 +17,14 @@ end
 
 assert('InlineStructTest#dup') do
   obj = InlineStructTest.new(1)
-  assert_equal obj.to_s, 'fixnum(1)'
-  assert_equal obj.dup.to_s, 'fixnum(1)'
+  assert_equal obj.to_s, 'fixnum'
+  assert_equal obj.dup.to_s, 'fixnum'
 end
 
 assert('InlineStructTest#clone') do
   obj = InlineStructTest.new(1)
-  assert_equal obj.to_s, 'fixnum(1)'
-  assert_equal obj.clone.to_s, 'fixnum(1)'
+  assert_equal obj.to_s, 'fixnum'
+  assert_equal obj.clone.to_s, 'fixnum'
 end
 
 assert('InlineStruct#object_id') do
@@ -38,22 +38,22 @@ end
 
 assert('InlineStructTest#mutate (dup)') do
   obj1 = InlineStructTest.new("foo")
-  assert_equal obj1.to_s, "string(foo)"
+  assert_equal obj1.to_s, "string"
   obj2 = obj1.dup
-  assert_equal obj2.to_s, "string(foo)"
+  assert_equal obj2.to_s, "string"
   obj1.mutate
-  assert_equal obj1.to_s, "mutate(foo)"
-  assert_equal obj2.to_s, "string(foo)"
+  assert_equal obj1.to_s, "mutate"
+  assert_equal obj2.to_s, "string"
 end
 
 assert('InlineStructTest#mutate (clone)') do
   obj1 = InlineStructTest.new("foo")
-  assert_equal obj1.to_s, "string(foo)"
+  assert_equal obj1.to_s, "string"
   obj2 = obj1.clone
-  assert_equal obj2.to_s, "string(foo)"
+  assert_equal obj2.to_s, "string"
   obj1.mutate
-  assert_equal obj1.to_s, "mutate(foo)"
-  assert_equal obj2.to_s, "string(foo)"
+  assert_equal obj1.to_s, "mutate"
+  assert_equal obj2.to_s, "string"
 end
 
 assert('InlineStructTest#test_receive(string)') do
@@ -101,26 +101,6 @@ if InlineStructTest.length == 24
   assert('InlineStructTest length [64 bit]') do
     assert_equal InlineStructTest.length, 3 * 8
   end
-
-  assert('InlineStructTest w/float [64 bit]') do
-    obj = InlineStructTest.new(1.25)
-    assert_equal obj.to_s, "float(1.250)"
-  end
-
-  assert('InlineStructTest w/fixnum [64 bit]') do
-    obj = InlineStructTest.new(42)
-    assert_equal obj.to_s, "fixnum(42)"
-  end
-
-  assert('InlineStructTest w/string [64 bit]') do
-    obj = InlineStructTest.new("hello")
-    assert_equal obj.to_s, "string(hello)"
-  end
-
-  assert('InlineStructTest w/long string [64 bit]') do
-    obj = InlineStructTest.new("this won't fit in 3 * 8 bytes available for the structure")
-    assert_equal obj.to_s, "string(this won't fit i"
-  end
 end
 
 # 32-bit mode
@@ -128,24 +108,11 @@ if InlineStructTest.length == 12
   assert('InlineStructTest length [32 bit]') do
     assert_equal InlineStructTest.length, 3 * 4
   end
+end
 
-  assert('InlineStructTest w/float [32 bit]') do
-    obj = InlineStructTest.new(1.25)
-    assert_equal obj.to_s, "float(1.250"
-  end
-
-  assert('InlineStructTest w/fixnum [32 bit]') do
-    obj = InlineStructTest.new(42)
-    assert_equal obj.to_s, "fixnum(42)"
-  end
-
-  assert('InlineStructTest w/string [32 bit]') do
-    obj = InlineStructTest.new("hello")
-    assert_equal obj.to_s, "string(hell"
-  end
-
-  assert('InlineStructTest w/long string [32 bit]') do
-    obj = InlineStructTest.new("this won't fit in 3 * 4 bytes available for the structure")
-    assert_equal obj.to_s, "string(this"
+# 16-bit mode
+if InlineStructTest.length == 6
+  assert('InlineStructTest length [16 bit]') do
+    assert_equal InlineStructTest.length, 3 * 2
   end
 end