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Copy pathWhileTest.cpp
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79 lines (64 loc) · 2.42 KB
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#include <Stream.h>
#include <gmock/gmock.h>
using namespace testing;
using namespace stream;
using namespace stream::op;
bool less_than_5_fn(int x) {
return x < 5;
}
auto less_than_5_lambda = [](int x) {
return x < 5;
};
struct Number {
Number(int value_) : value(value_) {}
bool less_than_5() { return value < 5; }
bool less_than_5_const() const { return value < 5; }
bool operator== (const Number& other) const {
return value == other.value;
}
int value;
};
TEST(TakeWhileTest, Function) {
EXPECT_THAT(MakeStream::range(2, 8) | take_while(less_than_5_fn) | to_vector(),
ElementsAre(2, 3, 4));
EXPECT_THAT(MakeStream::range(2, 8) | take_while(less_than_5_lambda) | to_vector(),
ElementsAre(2, 3, 4));
}
TEST(DropWhileTest, Function) {
EXPECT_THAT(MakeStream::range(2, 8) | drop_while(less_than_5_fn) | to_vector(),
ElementsAre(5, 6, 7));
EXPECT_THAT(MakeStream::range(2, 8) | drop_while(less_than_5_lambda) | to_vector(),
ElementsAre(5, 6, 7));
}
TEST(TakeWhileTest, MemberFunction) {
EXPECT_THAT(MakeStream::from({Number(3), Number(4), Number(5), Number(6)})
| take_while(&Number::less_than_5)
| to_vector(),
ElementsAre(Number(3), Number(4)));
EXPECT_THAT(MakeStream::from({Number(3), Number(4), Number(5), Number(6)})
| take_while(&Number::less_than_5_const)
| to_vector(),
ElementsAre(Number(3), Number(4)));
}
TEST(DropWhileTest, MemberFunction) {
EXPECT_THAT(MakeStream::from({Number(3), Number(4), Number(5), Number(6)})
| drop_while(&Number::less_than_5)
| to_vector(),
ElementsAre(Number(5), Number(6)));
EXPECT_THAT(MakeStream::from({Number(3), Number(4), Number(5), Number(6)})
| drop_while(&Number::less_than_5_const)
| to_vector(),
ElementsAre(Number(5), Number(6)));
}
TEST(TakeWhileTest, BoolConversion) {
Number n{1};
Number* null = nullptr;
EXPECT_THAT(MakeStream::from({&n, &n, null, &n}) | take_while() | to_vector(),
ElementsAre(&n, &n));
}
TEST(DropWhileTest, BoolConversion) {
Number n{1};
Number* null = nullptr;
EXPECT_THAT(MakeStream::from({&n, &n, null, &n}) | drop_while() | to_vector(),
ElementsAre(null, &n));
}