TEST(ProgramOptions, ParseErrors)
{
ProgramOptions po;
ProgramOptions::Option& help = po.add("help").mnemonic('?');
ProgramOptions::Option& input = po.add("input").mnemonic('i').requiresValue("INPUT");
ProgramOptions::Option& output = po.add("output").mnemonic('o').requiresValue("OUTPUT");
const char* argv1[] = { "program.exe", "--input" };
EXPECT_THROW(po.parse(2, argv1), ProgramOptionNeedsValue);
const char* argv2[] = { "program.exe", "-i" };
EXPECT_THROW(po.parse(2, argv2), ProgramOptionNeedsValue);
const char* argv3[] = { "program.exe", "--test" };
EXPECT_THROW(po.parse(2, argv3), InvalidProgramOption);
const char* argv4[] = { "program.exe", "-?a" };
po.reset();
EXPECT_FALSE(help.enabled());
EXPECT_THROW(po.parse(2, argv4), InvalidProgramOption);
EXPECT_TRUE(help.enabled()); // -? is parsed anyway, -a is the invalid option
const char* argv5[] = { "program.exe", "-io", "input-and-output.txt" };
po.reset();
EXPECT_THROW(po.parse(2, argv5), ProgramOptionNeedsValue);
po.reset();
EXPECT_THROW(po.parse(3, argv5), InvalidProgramOptionsCombination);
EXPECT_TRUE(input.enabled());
EXPECT_TRUE(output.enabled());
EXPECT_EQ("input-and-output.txt", input.value());
EXPECT_EQ("", output.value());
}
TEST(ProgramOptions, Parse)
{
ProgramOptions po;
ProgramOptions::Option& help = po.add("help").mnemonic('?');
ProgramOptions::Option& input = po.add("input").mnemonic('i').requiresValue("INPUT");
ProgramOptions::Option& output = po.add("output").mnemonic('o').requiresValue("OUTPUT");
const char* argv1[] = { "program.exe", "-?" };
po.parse(2, argv1);
EXPECT_TRUE(help.enabled());
const char* argv2[] = { "program.exe", "--help" };
po.reset();
po.parse(2, argv2);
EXPECT_TRUE(help.enabled());
const char* argv3[] = { "program.exe", "--input", "hello.cpp", "--output", "hello.exe" };
po.reset();
po.parse(5, argv3);
EXPECT_FALSE(help.enabled());
EXPECT_TRUE(input.enabled());
EXPECT_TRUE(output.enabled());
EXPECT_EQ("hello.cpp", input.value());
EXPECT_EQ("hello.exe", output.value());
const char* argv4[] = { "program.exe", "--input=hi.c", "--output=out.exe" };
po.reset();
po.parse(3, argv4);
EXPECT_FALSE(help.enabled());
EXPECT_TRUE(input.enabled());
EXPECT_TRUE(output.enabled());
EXPECT_EQ("hi.c", input.value());
EXPECT_EQ("out.exe", output.value());
const char* argv5[] = { "program.exe", "-?i", "input.md", "-o", "output.html", "extra-file.txt" };
po.reset();
po.parse(6, argv5);
EXPECT_TRUE(help.enabled());
EXPECT_TRUE(input.enabled());
EXPECT_TRUE(output.enabled());
EXPECT_EQ("input.md", input.value());
EXPECT_EQ("output.html", output.value());
ASSERT_EQ(1, po.values().size());
EXPECT_EQ("extra-file.txt", po.values()[0]);
const char* argv6[] = { "program.exe", "value1", "value2", "-o", "output", "value3", "--input=input", "value4" };
po.reset();
po.parse(8, argv6);
ASSERT_EQ(4, po.values().size());
EXPECT_EQ("value1", po.values()[0]);
EXPECT_EQ("value2", po.values()[1]);
EXPECT_EQ("value3", po.values()[2]);
EXPECT_EQ("value4", po.values()[3]);
}
TEST(ProgramOptions, Reset)
{
ProgramOptions po;
ProgramOptions::Option& help = po.add("help");
ProgramOptions::Option& file = po.add("file").requiresValue("FILE");
EXPECT_FALSE(help.enabled());
EXPECT_FALSE(file.enabled());
EXPECT_EQ("", file.value());
const char* argv[] = { "program.exe", "--help", "--file=readme.txt" };
po.parse(3, argv);
EXPECT_TRUE(help.enabled());
EXPECT_TRUE(file.enabled());
EXPECT_EQ("readme.txt", file.value());
po.reset();
EXPECT_FALSE(help.enabled());
EXPECT_FALSE(file.enabled());
EXPECT_EQ("", file.value());
}