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◆ main openmsx / src / unittest / StringReplacer_test.cc
2.3 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
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#include "catch.hpp"
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#include "StringReplacer.hh"
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TEST_CASE("StringReplacer")
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{
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	// up-to-4 strings is a special case
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	SECTION("no replacements") {
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		static constexpr auto replacer = StringReplacer::create();
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "foo");
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		CHECK(replacer("1234") == "1234");
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	}
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	SECTION("1 replacement") {
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		static constexpr auto replacer = StringReplacer::create(
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			"foo", "bar");
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "bar");
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		CHECK(replacer("1234") == "1234");
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	}
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	SECTION("2 replacements") {
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		static constexpr auto replacer = StringReplacer::create(
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			"foo", "bar",
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			"qux", "baz");
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "bar");
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		CHECK(replacer("qux") == "baz");
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		CHECK(replacer("Qux") == "Qux"); // case sensitive
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		CHECK(replacer("1234") == "1234");
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	}
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	SECTION("3 replacements") {
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		static constexpr auto replacer = StringReplacer::create(
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			"foo", "bar",
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			"qux", "baz",
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			"a", "b");
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "bar");
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		CHECK(replacer("qux") == "baz");
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		CHECK(replacer("a") == "b");
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		CHECK(replacer("1234") == "1234");
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	}
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	SECTION("4 replacements") {
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		static constexpr auto replacer = StringReplacer::create(
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			"foo", "bar",
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			"qux", "baz",
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			"a", "b",
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			"1", "one");
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "bar");
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		CHECK(replacer("qux") == "baz");
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		CHECK(replacer("a") == "b");
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		CHECK(replacer("1") == "one");
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		CHECK(replacer("1234") == "1234");
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	}
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	// more than 4 switches to a different internal implementation
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	SECTION("many replacements") {
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		static constexpr auto replacer = StringReplacer::create(
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			"1", "one",
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			"22", "two",
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			"333", "three",
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			"4444", "four",
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			"5", "five",
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			"6", "six",
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			"777", "seven",
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			"8", "eight",
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			"9", "nine",
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			"10101010", "ten");
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		CHECK(replacer("1") == "one");
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		CHECK(replacer("22") == "two");
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		CHECK(replacer("333") == "three");
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		CHECK(replacer("4444") == "four");
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		CHECK(replacer("5") == "five");
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		CHECK(replacer("6") == "six");
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		CHECK(replacer("777") == "seven");
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		CHECK(replacer("8") == "eight");
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		CHECK(replacer("9") == "nine");
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		CHECK(replacer("10101010") == "ten");
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		CHECK(replacer("") == "");
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		CHECK(replacer("foo") == "foo");
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		CHECK(replacer("11") == "11");
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		CHECK(replacer("7") == "7");
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	}
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}