[PATCH] D51039: [clangd] Add unittests for D51038

[Kadir Cetinkaya via Phabricator via cfe-commits]

kadircet created this revision.
kadircet added reviewers: ilya-biryukov, ioeric, hokein.
Herald added subscribers: cfe-commits, arphaman, jkorous, MaskRay.

Repository:
  rCTE Clang Tools Extra

https://reviews.llvm.org/D51039

Files:
  unittests/clangd/CodeCompleteTests.cpp


Index: unittests/clangd/CodeCompleteTests.cpp
===================================================================
--- unittests/clangd/CodeCompleteTests.cpp
+++ unittests/clangd/CodeCompleteTests.cpp
@@ -1590,6 +1590,56 @@
               ElementsAre(Sig("foo(T, U) -> void", {"T", "U"})));
 }
 
+TEST(SignatureHelpTest, InsideArgument) {
+  {
+    const auto Results = signatures(R"cpp(
+      void foo(int x);
+      void foo(int x, int y);
+      int main() { foo(1+^); }
+    )cpp");
+    EXPECT_THAT(
+        Results.signatures,
+        ElementsAre(Sig("foo(int x) -> void", {"int x"}),
+                    Sig("foo(int x, int y) -> void", {"int x", "int y"})));
+    EXPECT_EQ(0, Results.activeParameter);
+  }
+  {
+    const auto Results = signatures(R"cpp(
+      void foo(int x);
+      void foo(int x, int y);
+      int main() { foo(1^); }
+    )cpp");
+    EXPECT_THAT(
+        Results.signatures,
+        ElementsAre(Sig("foo(int x) -> void", {"int x"}),
+                    Sig("foo(int x, int y) -> void", {"int x", "int y"})));
+    EXPECT_EQ(0, Results.activeParameter);
+  }
+  {
+    const auto Results = signatures(R"cpp(
+      void foo(int x);
+      void foo(int x, int y);
+      int main() { foo(1^0); }
+    )cpp");
+    EXPECT_THAT(
+        Results.signatures,
+        ElementsAre(Sig("foo(int x) -> void", {"int x"}),
+                    Sig("foo(int x, int y) -> void", {"int x", "int y"})));
+    EXPECT_EQ(0, Results.activeParameter);
+  }
+  {
+    const auto Results = signatures(R"cpp(
+      void foo(int x);
+      void foo(int x, int y);
+      int bar(int x, int y);
+      int main() { bar(foo(2, 3^)); }
+    )cpp");
+    EXPECT_THAT(Results.signatures, ElementsAre(Sig("foo(int x, int y) -> void",
+                                                    {"int x", "int y"})));
+    EXPECT_EQ(1, Results.activeParameter);
+  }
+}
+
 } // namespace
 } // namespace clangd
 } // namespace clang


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