42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
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/* A sketch of unit tests for an edit_distance function.
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*
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* The function is assumed to be
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* int edit_distance(const std::string&, const std::string&);
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* and it is assumed to be declared in edit_distance.h
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*/
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#include "edit_distance.h"
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#include <iostream>
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bool do_test(const std::string& x, const std::string& y, int expected)
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{
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auto actual = edit_distance(x, y);
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if (actual != expected) {
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std::cout << "*** WRONG: distance(" << x << ", " << y << ") was "
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<< actual << ", expected " << expected << '\n';
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return true;
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}
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return false;
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}
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int main()
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{
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int res = do_test("foobar", "foobar", 0);
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res += do_test("x", "x", 0);
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res += do_test("baz", "bar", 1);
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res += do_test("separate", "seperate", 1);
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res += do_test("separate", "seprate", 1);
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res += do_test("separate", "sepeate", 2);
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res += do_test("separate", "desperate", 3);
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res += do_test("separate", "federate", 3);
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res += do_test("separate", "generate", 3);
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res += do_test("color", "colour", 1);
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res += do_test("color", "colr", 1);
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res += do_test("volor", "colour", 2);
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if (!res)
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std::cout << "\nPassed\n";
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else
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std::cout << "\nFailed " << res << " tests\n";
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}
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