More tests.

test/format-test.cc

@@ -29,7 +29,6 @@
 #include <cfloat>
 #include <climits>
 #include <cmath>
-#include <cstdarg>
 #include <cstring>
 #include <fstream>
 #include <iomanip>
@@ -109,17 +108,6 @@ struct WriteChecker {
 #define CHECK_WRITE_WCHAR(value) \
   EXPECT_PRED_FORMAT1(WriteChecker<wchar_t>(), value)
 
-#ifdef _MSC_VER
-# define vsnprintf vsprintf_s
-#endif
-
-void SPrintf(char *buffer, const char *format, ...) {
-  std::va_list args;
-  va_start(args, format);
-  vsnprintf(buffer, BUFFER_SIZE, format, args);
-  va_end(args);
-}
-
 std::string ReadFile(StringRef filename) {
   std::ifstream out(filename.c_str());
   std::stringstream content;

test/printf-test.cc

@@ -165,6 +165,9 @@ TEST(PrintfTest, PlusFlag) {
   EXPECT_PRINTF("-42", "%+d", -42);
   EXPECT_PRINTF("+0042", "%+05d", 42);
   EXPECT_PRINTF("+0042", "%0++5d", 42);
+
+  // '+' flag is ignored for non-numeric types.
+  EXPECT_PRINTF("x", "%+c", 'x');
 }
 
 TEST(PrintfTest, MinusFlag) {
@@ -177,6 +180,9 @@ TEST(PrintfTest, SpaceFlag) {
   EXPECT_PRINTF("-42", "% d", -42);
   EXPECT_PRINTF(" 0042", "% 05d", 42);
   EXPECT_PRINTF(" 0042", "%0  5d", 42);
+
+  // ' ' flag is ignored for non-numeric types.
+  EXPECT_PRINTF("x", "% c", 'x');
 }
 
 TEST(PrintfTest, HashFlag) {
@@ -189,15 +195,29 @@ TEST(PrintfTest, HashFlag) {
   EXPECT_PRINTF("-0x42", "%#x", -0x42);
   EXPECT_PRINTF("0", "%#x", 0);
 
+  EXPECT_PRINTF("0x0042", "%#06x", 0x42);
   EXPECT_PRINTF("0x0042", "%0##6x", 0x42);
 
-  EXPECT_PRINTF("-42.0000", "%#g", -42.0);
-  //EXPECT_PRINTF("-4.200000e+01", "%#e", -42.0);
+  EXPECT_PRINTF("-42.000000", "%#f", -42.0);
+  EXPECT_PRINTF("-42.000000", "%#F", -42.0);
 
-  // TODO: more tests
+  char buffer[BUFFER_SIZE];
+  SPrintf(buffer, "%#e", -42.0);
+  EXPECT_PRINTF(buffer, "%#e", -42.0);
+  SPrintf(buffer, "%#E", -42.0);
+  EXPECT_PRINTF(buffer, "%#E", -42.0);
+
+  EXPECT_PRINTF("-42.0000", "%#g", -42.0);
+  EXPECT_PRINTF("-42.0000", "%#G", -42.0);
+
+  // TODO
+  //EXPECT_PRINTF("-0x1.5p+5", "%#a", -42.0);
+  //EXPECT_PRINTF("-0x1.5A+5", "%#A", -42.0);
+
+  // '#' flag is ignored for non-numeric types.
+  EXPECT_PRINTF("x", "%#c", 'x');
 }
 
 // TODO: test '*' width, precision, length and type specifier
 
 #endif
-

test/util.cc

@@ -26,8 +26,21 @@
  */
 
 #include "util.h"
+#include <cstdarg>
+#include <cstdio>
 #include <cstring>
 
+#ifdef _MSC_VER
+# define vsnprintf vsprintf_s
+#endif
+
+void SPrintf(char *buffer, const char *format, ...) {
+  std::va_list args;
+  va_start(args, format);
+  vsnprintf(buffer, BUFFER_SIZE, format, args);
+  va_end(args);
+}
+
 void Increment(char *s) {
   for (int i = static_cast<int>(std::strlen(s)) - 1; i >= 0; --i) {
     if (s[i] != '9') {

test/util.h

@@ -27,5 +27,7 @@
 
 enum {BUFFER_SIZE = 256};
 
+void SPrintf(char *buffer, const char *format, ...);
+
 // Increment a number in a string.
 void Increment(char *s);