[llvm] [llvm][DebugInfo] formatv - Tests (PR #191980)

[Konrad Kleine via llvm-commits]

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@@ -412,8 +412,56 @@ TEST(FormatAndFormatvTest, EquivalentHexFormatting) {
             formatv("0x{0:x-}", fmt_align(N, AlignStyle::Right, HexDigits, '0'))
                 .str());
 
+  // More examples
+
+  EXPECT_EQ("0x0000000abc",
+            printToString(format("0x%0*" PRIx64, 10, 0xABCULL)));
+  EXPECT_EQ("0x0000000abc",
+            formatv("0x{0:x-}", fmt_align(0xABCULL, AlignStyle::Right, 10, '0'))
+                .str());
+
   EXPECT_EQ("0x000000fe", printToString(format("0x%8.8" PRIx64, 0xfeULL)));
   EXPECT_EQ("0x000000fe", formatv("{0:x+8}", 0xfeULL).str());
+  EXPECT_EQ("0x000000fe", formatv("{0:x8}", 0xfeULL).str());
+
+  EXPECT_EQ("000000fe", printToString(format("%08" PRIx64, 0xfeULL)));
+  EXPECT_EQ("000000fe", formatv("{0:x-8}", 0xfeULL).str());
+
+  EXPECT_EQ("0x000000fb", printToString(format("0x%08.08" PRIx64, 0xfbULL)));
+  EXPECT_EQ("0x000000fb", formatv("{0:x+8}", 0xfbULL).str());
+
+  EXPECT_EQ("123", printToString(format("%x", 0x123)));
+  EXPECT_EQ("123", formatv("{0:x-}", 0x123).str());
+}
+
+TEST(FormatAndFormatvTest, StringPadding) {
+  // The expected string has 9 spaces after "abcd" and a closing bracket.
+  EXPECT_EQ("[abcd         ]",
+            printToString(format("[%s%*c", "abcd", 10, ']')));
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kwk wrote:

Indeed `%s%*c` is confusing but it is part of the current llvm code-base somewhere and there will be a PR later in which I have replaced this exact occurrence with a new formatv string. I hope you understand why I have to reject this suggestion. 

https://github.com/llvm/llvm-project/pull/191980