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Move unit tests to the location Meson expects them to be
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directory.
Progress on #2503
This reverts commit 451f8a8c19
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270 changed files with 158 additions and 168 deletions
250
src/libexpr-tests/trivial.cc
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250
src/libexpr-tests/trivial.cc
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#include "tests/libexpr.hh"
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namespace nix {
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// Testing of trivial expressions
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class TrivialExpressionTest : public LibExprTest {};
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TEST_F(TrivialExpressionTest, true) {
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auto v = eval("true");
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ASSERT_THAT(v, IsTrue());
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}
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TEST_F(TrivialExpressionTest, false) {
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auto v = eval("false");
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ASSERT_THAT(v, IsFalse());
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}
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TEST_F(TrivialExpressionTest, null) {
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auto v = eval("null");
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ASSERT_THAT(v, IsNull());
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}
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TEST_F(TrivialExpressionTest, 1) {
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auto v = eval("1");
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ASSERT_THAT(v, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, 1plus1) {
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auto v = eval("1+1");
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ASSERT_THAT(v, IsIntEq(2));
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}
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TEST_F(TrivialExpressionTest, minus1) {
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auto v = eval("-1");
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ASSERT_THAT(v, IsIntEq(-1));
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}
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TEST_F(TrivialExpressionTest, 1minus1) {
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auto v = eval("1-1");
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ASSERT_THAT(v, IsIntEq(0));
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}
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TEST_F(TrivialExpressionTest, lambdaAdd) {
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auto v = eval("let add = a: b: a + b; in add 1 2");
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ASSERT_THAT(v, IsIntEq(3));
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}
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TEST_F(TrivialExpressionTest, list) {
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auto v = eval("[]");
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ASSERT_THAT(v, IsListOfSize(0));
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}
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TEST_F(TrivialExpressionTest, attrs) {
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auto v = eval("{}");
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ASSERT_THAT(v, IsAttrsOfSize(0));
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}
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TEST_F(TrivialExpressionTest, float) {
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auto v = eval("1.234");
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ASSERT_THAT(v, IsFloatEq(1.234));
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}
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TEST_F(TrivialExpressionTest, updateAttrs) {
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auto v = eval("{ a = 1; } // { b = 2; a = 3; }");
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ASSERT_THAT(v, IsAttrsOfSize(2));
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auto a = v.attrs()->find(createSymbol("a"));
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ASSERT_NE(a, nullptr);
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ASSERT_THAT(*a->value, IsIntEq(3));
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auto b = v.attrs()->find(createSymbol("b"));
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ASSERT_NE(b, nullptr);
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ASSERT_THAT(*b->value, IsIntEq(2));
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}
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TEST_F(TrivialExpressionTest, hasAttrOpFalse) {
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auto v = eval("{} ? a");
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ASSERT_THAT(v, IsFalse());
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}
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TEST_F(TrivialExpressionTest, hasAttrOpTrue) {
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auto v = eval("{ a = 123; } ? a");
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ASSERT_THAT(v, IsTrue());
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}
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TEST_F(TrivialExpressionTest, withFound) {
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auto v = eval("with { a = 23; }; a");
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ASSERT_THAT(v, IsIntEq(23));
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}
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TEST_F(TrivialExpressionTest, withNotFound) {
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ASSERT_THROW(eval("with {}; a"), Error);
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}
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TEST_F(TrivialExpressionTest, withOverride) {
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auto v = eval("with { a = 23; }; with { a = 42; }; a");
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ASSERT_THAT(v, IsIntEq(42));
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}
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TEST_F(TrivialExpressionTest, letOverWith) {
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auto v = eval("let a = 23; in with { a = 1; }; a");
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ASSERT_THAT(v, IsIntEq(23));
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}
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TEST_F(TrivialExpressionTest, multipleLet) {
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auto v = eval("let a = 23; in let a = 42; in a");
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ASSERT_THAT(v, IsIntEq(42));
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}
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TEST_F(TrivialExpressionTest, defaultFunctionArgs) {
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auto v = eval("({ a ? 123 }: a) {}");
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ASSERT_THAT(v, IsIntEq(123));
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}
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TEST_F(TrivialExpressionTest, defaultFunctionArgsOverride) {
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auto v = eval("({ a ? 123 }: a) { a = 5; }");
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ASSERT_THAT(v, IsIntEq(5));
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}
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TEST_F(TrivialExpressionTest, defaultFunctionArgsCaptureBack) {
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auto v = eval("({ a ? 123 }@args: args) {}");
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ASSERT_THAT(v, IsAttrsOfSize(0));
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}
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TEST_F(TrivialExpressionTest, defaultFunctionArgsCaptureFront) {
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auto v = eval("(args@{ a ? 123 }: args) {}");
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ASSERT_THAT(v, IsAttrsOfSize(0));
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}
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TEST_F(TrivialExpressionTest, assertThrows) {
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ASSERT_THROW(eval("let x = arg: assert arg == 1; 123; in x 2"), Error);
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}
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TEST_F(TrivialExpressionTest, assertPassed) {
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auto v = eval("let x = arg: assert arg == 1; 123; in x 1");
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ASSERT_THAT(v, IsIntEq(123));
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}
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class AttrSetMergeTrvialExpressionTest :
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public TrivialExpressionTest,
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public testing::WithParamInterface<const char*>
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{};
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TEST_P(AttrSetMergeTrvialExpressionTest, attrsetMergeLazy) {
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// Usually Nix rejects duplicate keys in an attrset but it does allow
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// so if it is an attribute set that contains disjoint sets of keys.
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// The below is equivalent to `{a.b = 1; a.c = 2; }`.
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// The attribute set `a` will be a Thunk at first as the attribuets
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// have to be merged (or otherwise computed) and that is done in a lazy
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// manner.
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auto expr = GetParam();
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auto v = eval(expr);
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ASSERT_THAT(v, IsAttrsOfSize(1));
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auto a = v.attrs()->find(createSymbol("a"));
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ASSERT_NE(a, nullptr);
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ASSERT_THAT(*a->value, IsThunk());
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state.forceValue(*a->value, noPos);
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ASSERT_THAT(*a->value, IsAttrsOfSize(2));
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auto b = a->value->attrs()->find(createSymbol("b"));
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ASSERT_NE(b, nullptr);
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ASSERT_THAT(*b->value, IsIntEq(1));
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auto c = a->value->attrs()->find(createSymbol("c"));
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ASSERT_NE(c, nullptr);
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ASSERT_THAT(*c->value, IsIntEq(2));
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}
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INSTANTIATE_TEST_SUITE_P(
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attrsetMergeLazy,
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AttrSetMergeTrvialExpressionTest,
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testing::Values(
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"{ a.b = 1; a.c = 2; }",
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"{ a = { b = 1; }; a = { c = 2; }; }"
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)
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);
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TEST_F(TrivialExpressionTest, functor) {
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auto v = eval("{ __functor = self: arg: self.v + arg; v = 10; } 5");
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ASSERT_THAT(v, IsIntEq(15));
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}
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TEST_F(TrivialExpressionTest, forwardPipe) {
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auto v = eval("1 |> builtins.add 2 |> builtins.mul 3");
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ASSERT_THAT(v, IsIntEq(9));
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}
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TEST_F(TrivialExpressionTest, backwardPipe) {
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auto v = eval("builtins.add 1 <| builtins.mul 2 <| 3");
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ASSERT_THAT(v, IsIntEq(7));
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}
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TEST_F(TrivialExpressionTest, forwardPipeEvaluationOrder) {
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auto v = eval("1 |> null |> (x: 2)");
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ASSERT_THAT(v, IsIntEq(2));
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}
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TEST_F(TrivialExpressionTest, backwardPipeEvaluationOrder) {
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auto v = eval("(x: 1) <| null <| 2");
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ASSERT_THAT(v, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, differentPipeOperatorsDoNotAssociate) {
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ASSERT_THROW(eval("(x: 1) <| 2 |> (x: 3)"), ParseError);
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}
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TEST_F(TrivialExpressionTest, differentPipeOperatorsParensLeft) {
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auto v = eval("((x: 1) <| 2) |> (x: 3)");
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ASSERT_THAT(v, IsIntEq(3));
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}
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TEST_F(TrivialExpressionTest, differentPipeOperatorsParensRight) {
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auto v = eval("(x: 1) <| (2 |> (x: 3))");
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ASSERT_THAT(v, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, forwardPipeLowestPrecedence) {
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auto v = eval("false -> true |> (x: !x)");
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ASSERT_THAT(v, IsFalse());
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}
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TEST_F(TrivialExpressionTest, backwardPipeLowestPrecedence) {
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auto v = eval("(x: !x) <| false -> true");
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ASSERT_THAT(v, IsFalse());
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}
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TEST_F(TrivialExpressionTest, forwardPipeStrongerThanElse) {
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auto v = eval("if true then 1 else 2 |> 3");
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ASSERT_THAT(v, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, backwardPipeStrongerThanElse) {
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auto v = eval("if true then 1 else 2 <| 3");
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ASSERT_THAT(v, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, bindOr) {
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auto v = eval("{ or = 1; }");
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ASSERT_THAT(v, IsAttrsOfSize(1));
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auto b = v.attrs()->find(createSymbol("or"));
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ASSERT_NE(b, nullptr);
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ASSERT_THAT(*b->value, IsIntEq(1));
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}
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TEST_F(TrivialExpressionTest, orCantBeUsed) {
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ASSERT_THROW(eval("let or = 1; in or"), Error);
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}
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} /* namespace nix */
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