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author | Jon Skeet <skeet@pobox.com> | 2016-07-13 11:36:19 +0100 |
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committer | GitHub <noreply@github.com> | 2016-07-13 11:36:19 +0100 |
commit | 042993b3dd8c52f979870c91ea7fcbcf0dcf94a0 (patch) | |
tree | d5810f23c01b086faaf5c04c44fe26d1e7a3cbe2 /csharp/src/Google.Protobuf.Test | |
parent | 8eb90e380c702e1fcf0e68d1d32918da826e25f4 (diff) | |
download | protobuf-042993b3dd8c52f979870c91ea7fcbcf0dcf94a0.tar.gz protobuf-042993b3dd8c52f979870c91ea7fcbcf0dcf94a0.tar.bz2 protobuf-042993b3dd8c52f979870c91ea7fcbcf0dcf94a0.zip |
Implement RepeatedField.AddRange (#1733)
* Improve exception throwing implementation in collections
* Implement RepeatedField.AddRange.
This fixes issue #1730.
* Optimize AddRange for sequences implementing ICollection
(Also fix a few more C# 6-isms.)
* Remove the overload for Add(RepeatedField<T>)
We now just perform the optimization within AddRange itself.
This is a breaking change in terms of "drop in the DLL", but is
source compatible, which should be fine.
Diffstat (limited to 'csharp/src/Google.Protobuf.Test')
-rw-r--r-- | csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs | 90 |
1 files changed, 88 insertions, 2 deletions
diff --git a/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs b/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs index 8ed54cfb..6852f75f 100644 --- a/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs +++ b/csharp/src/Google.Protobuf.Test/Collections/RepeatedFieldTest.cs @@ -75,10 +75,96 @@ namespace Google.Protobuf.Collections } [Test] - public void Add_RepeatedField() + public void AddRange_SlowPath() + { + var list = new RepeatedField<string>(); + list.AddRange(new[] { "foo", "bar" }.Select(x => x)); + Assert.AreEqual(2, list.Count); + Assert.AreEqual("foo", list[0]); + Assert.AreEqual("bar", list[1]); + } + + [Test] + public void AddRange_SlowPath_NullsProhibited_ReferenceType() + { + var list = new RepeatedField<string>(); + // It's okay for this to throw ArgumentNullException if necessary. + // It's not ideal, but not awful. + Assert.Catch<ArgumentException>(() => list.AddRange(new[] { "foo", null }.Select(x => x))); + } + + [Test] + public void AddRange_SlowPath_NullsProhibited_NullableValueType() + { + var list = new RepeatedField<int?>(); + // It's okay for this to throw ArgumentNullException if necessary. + // It's not ideal, but not awful. + Assert.Catch<ArgumentException>(() => list.AddRange(new[] { 20, (int?)null }.Select(x => x))); + } + + [Test] + public void AddRange_Optimized_NonNullableValueType() + { + var list = new RepeatedField<int>(); + list.AddRange(new List<int> { 20, 30 }); + Assert.AreEqual(2, list.Count); + Assert.AreEqual(20, list[0]); + Assert.AreEqual(30, list[1]); + } + + [Test] + public void AddRange_Optimized_ReferenceType() + { + var list = new RepeatedField<string>(); + list.AddRange(new List<string> { "foo", "bar" }); + Assert.AreEqual(2, list.Count); + Assert.AreEqual("foo", list[0]); + Assert.AreEqual("bar", list[1]); + } + + [Test] + public void AddRange_Optimized_NullableValueType() + { + var list = new RepeatedField<int?>(); + list.AddRange(new List<int?> { 20, 30 }); + Assert.AreEqual(2, list.Count); + Assert.AreEqual((int?) 20, list[0]); + Assert.AreEqual((int?) 30, list[1]); + } + + [Test] + public void AddRange_Optimized_NullsProhibited_ReferenceType() + { + // We don't just trust that a collection with a nullable element type doesn't contain nulls + var list = new RepeatedField<string>(); + // It's okay for this to throw ArgumentNullException if necessary. + // It's not ideal, but not awful. + Assert.Catch<ArgumentException>(() => list.AddRange(new List<string> { "foo", null })); + } + + [Test] + public void AddRange_Optimized_NullsProhibited_NullableValueType() + { + // We don't just trust that a collection with a nullable element type doesn't contain nulls + var list = new RepeatedField<int?>(); + // It's okay for this to throw ArgumentNullException if necessary. + // It's not ideal, but not awful. + Assert.Catch<ArgumentException>(() => list.AddRange(new List<int?> { 20, null })); + } + + [Test] + public void AddRange_AlreadyNotEmpty() + { + var list = new RepeatedField<int> { 1, 2, 3 }; + list.AddRange(new List<int> { 4, 5, 6 }); + CollectionAssert.AreEqual(new[] { 1, 2, 3, 4, 5, 6 }, list); + } + + [Test] + public void AddRange_RepeatedField() { var list = new RepeatedField<string> { "original" }; - list.Add(new RepeatedField<string> { "foo", "bar" }); + list.AddRange(new RepeatedField<string> { "foo", "bar" }); Assert.AreEqual(3, list.Count); Assert.AreEqual("original", list[0]); Assert.AreEqual("foo", list[1]); |