* test/mkmf/test_have_library.rb: tests for have_library.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/mkmf/test_have_library.rb

@@ -0,0 +1,45 @@
+require_relative 'base'
+require 'tempfile'
+
+class TestMkmf
+  class TestHaveLibrary < TestMkmf
+    LIBRARY_NAME = 'mkmftest'
+    HEADER_NAME = "#{LIBRARY_NAME}.h"
+    FUNC_NAME = 'ruby_mkmftest_foo'
+    ARPREFIX = config_string('LIBRUBY_A') {|lib| lib[/\A\w+/]}
+
+    def create_library(libname = LIBRARY_NAME)
+      lib = "#{ARPREFIX}#{libname}.#{$LIBEXT}"
+      open(HEADER_NAME, "w") do |hdr|
+        hdr.puts "void #{FUNC_NAME}(void);"
+        hdr.puts "void #{FUNC_NAME}_fake(void);"
+      end
+      create_tmpsrc("#include \"#{HEADER_NAME}\"\n""void #{FUNC_NAME}(void) {}")
+      xsystem(cc_command)
+      xsystem("#{CONFIG['AR']} #{config_string('ARFLAGS') || 'cru '}#{lib} conftest.#{$OBJEXT}")
+      File.unlink("conftest.#{$OBJEXT}")
+      config_string('RANLIB') do |ranlib|
+        xsystem("#{ranlib} #{lib}")
+      end
+    end
+
+    def test_have_library
+      create_library
+      assert_equal(true, have_library(LIBRARY_NAME), MKMFLOG)
+    end
+
+    def test_have_library_with_name
+      create_library
+      assert_equal(true, have_library(LIBRARY_NAME, FUNC_NAME, HEADER_NAME), MKMFLOG)
+    end
+
+    def test_no_have_library
+      assert_equal(false, have_library(LIBRARY_NAME), MKMFLOG)
+    end
+
+    def test_no_have_library_with_name
+      create_library
+      assert_equal(false, have_library(LIBRARY_NAME, "#{FUNC_NAME}_fake", HEADER_NAME), MKMFLOG)
+    end
+  end
+end