From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <jari.vetoniemi@indooratlas.com>
Date: Mon, 16 Mar 2020 18:49:26 +0900
Subject: Fresh start

---
 jni/ruby/test/psych/test_merge_keys.rb | 180 +++++++++++++++++++++++++++++++++
 1 file changed, 180 insertions(+)
 create mode 100644 jni/ruby/test/psych/test_merge_keys.rb

(limited to 'jni/ruby/test/psych/test_merge_keys.rb')

diff --git a/jni/ruby/test/psych/test_merge_keys.rb b/jni/ruby/test/psych/test_merge_keys.rb
new file mode 100644
index 0000000..1620a6a
--- /dev/null
+++ b/jni/ruby/test/psych/test_merge_keys.rb
@@ -0,0 +1,180 @@
+require_relative 'helper'
+
+module Psych
+  class TestMergeKeys < TestCase
+    class Product
+      attr_reader :bar
+    end
+
+    def test_merge_key_with_bare_hash
+      doc = Psych.load <<-eodoc
+map:
+  <<:
+    hello: world
+      eodoc
+      hash = { "map" => { "hello" => "world" } }
+      assert_equal hash, doc
+    end
+
+    def test_roundtrip_with_chevron_key
+      h = {}
+      v = { 'a' => h, '<<' => h }
+      assert_cycle v
+    end
+
+    def test_explicit_string
+      doc = Psych.load <<-eoyml
+a: &me { hello: world }
+b: { !!str '<<': *me }
+eoyml
+      expected = {
+        "a" => { "hello" => "world" },
+        "b" => {
+          "<<" => { "hello" => "world" }
+        }
+      }
+      assert_equal expected, doc
+    end
+
+    def test_mergekey_with_object
+      s = <<-eoyml
+foo: &foo
+  bar: 10
+product:
+  !ruby/object:#{Product.name}
+  <<: *foo
+      eoyml
+      hash = Psych.load s
+      assert_equal({"bar" => 10}, hash["foo"])
+      product = hash["product"]
+      assert_equal 10, product.bar
+    end
+
+    def test_merge_nil
+      yaml = <<-eoyml
+defaults: &defaults
+development:
+  <<: *defaults
+      eoyml
+      assert_equal({'<<' => nil }, Psych.load(yaml)['development'])
+    end
+
+    def test_merge_array
+      yaml = <<-eoyml
+foo: &hello
+- 1
+baz:
+  <<: *hello
+      eoyml
+      assert_equal({'<<' => [1]}, Psych.load(yaml)['baz'])
+    end
+
+    def test_merge_is_not_partial
+      yaml = <<-eoyml
+default: &default
+  hello: world
+foo: &hello
+- 1
+baz:
+  <<: [*hello, *default]
+      eoyml
+      doc = Psych.load yaml
+      refute doc['baz'].key? 'hello'
+      assert_equal({'<<' => [[1], {"hello"=>"world"}]}, Psych.load(yaml)['baz'])
+    end
+
+    def test_merge_seq_nil
+      yaml = <<-eoyml
+foo: &hello
+baz:
+  <<: [*hello]
+      eoyml
+      assert_equal({'<<' => [nil]}, Psych.load(yaml)['baz'])
+    end
+
+    def test_bad_seq_merge
+      yaml = <<-eoyml
+defaults: &defaults [1, 2, 3]
+development:
+  <<: *defaults
+      eoyml
+      assert_equal({'<<' => [1,2,3]}, Psych.load(yaml)['development'])
+    end
+
+    def test_missing_merge_key
+      yaml = <<-eoyml
+bar:
+  << : *foo
+      eoyml
+      exp = assert_raises(Psych::BadAlias) { Psych.load yaml }
+      assert_match 'foo', exp.message
+    end
+
+    # [ruby-core:34679]
+    def test_merge_key
+      yaml = <<-eoyml
+foo: &foo
+  hello: world
+bar:
+  << : *foo
+  baz: boo
+      eoyml
+
+      hash = {
+        "foo" => { "hello" => "world"},
+        "bar" => { "hello" => "world", "baz" => "boo" } }
+      assert_equal hash, Psych.load(yaml)
+    end
+
+    def test_multiple_maps
+      yaml = <<-eoyaml
+---
+- &CENTER { x: 1, y: 2 }
+- &LEFT { x: 0, y: 2 }
+- &BIG { r: 10 }
+- &SMALL { r: 1 }
+
+# All the following maps are equal:
+
+- # Merge multiple maps
+  << : [ *CENTER, *BIG ]
+  label: center/big
+      eoyaml
+
+      hash = {
+        'x' => 1,
+        'y' => 2,
+        'r' => 10,
+        'label' => 'center/big'
+      }
+
+      assert_equal hash, Psych.load(yaml)[4]
+    end
+
+    def test_override
+      yaml = <<-eoyaml
+---
+- &CENTER { x: 1, y: 2 }
+- &LEFT { x: 0, y: 2 }
+- &BIG { r: 10 }
+- &SMALL { r: 1 }
+
+# All the following maps are equal:
+
+- # Override
+  << : [ *BIG, *LEFT, *SMALL ]
+  x: 1
+  label: center/big
+      eoyaml
+
+      hash = {
+        'x' => 1,
+        'y' => 2,
+        'r' => 10,
+        'label' => 'center/big'
+      }
+
+      assert_equal hash, Psych.load(yaml)[4]
+    end
+  end
+end
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