Unit test for format_number_range

format_number_range was not being tested in isolation before.

Author: tautschnig

unit/Makefile

@@ -32,6 +32,7 @@ SRC += analyses/ai/ai.cpp \
        util/expr_cast/expr_cast.cpp \
        util/expr.cpp \
        util/file_util.cpp \
+       util/format_number_range.cpp \
        util/get_base_name.cpp \
        util/graph.cpp \
        util/irep.cpp \

unit/util/format_number_range.cpp

@@ -0,0 +1,37 @@
+/*******************************************************************\
+
+ Module: format_number_range unit tests
+
+ Author: Michael Tautschnig
+
+\*******************************************************************/
+
+#include <testing-utils/catch.hpp>
+
+#include <util/format_number_range.h>
+
+TEST_CASE(
+  "Format a range of unsigned numbers",
+  "[core][util][format_number_range]")
+{
+  const std::vector<unsigned> singleton = {1u};
+  REQUIRE(format_number_range(singleton) == "1");
+
+  const std::vector<unsigned> r1 = {0u, 42u};
+  REQUIRE(format_number_range(r1) == "0,42");
+
+  const std::vector<unsigned> r2 = {0u, 1u};
+  REQUIRE(format_number_range(r2) == "0,1");
+
+  const std::vector<unsigned> r3 = {1u, 2u, 3u};
+  REQUIRE(format_number_range(r3) == "1-3");
+
+  const std::vector<unsigned> r4 = {1u, 3u, 4u, 5u};
+  REQUIRE(format_number_range(r4) == "1,3-5");
+
+  const std::vector<unsigned> r5 = {1u, 10u, 11u, 12u, 42u};
+  REQUIRE(format_number_range(r5) == "1,10-12,42");
+
+  const std::vector<unsigned> r6 = {1u, 10u, 11u, 12u, 42u, 43u, 44u};
+  REQUIRE(format_number_range(r6) == "1,10-12,42-44");
+}