1 files changed, 53 insertions, 0 deletions

diff --git a/tests/unit/libexpr/trivial.cc b/tests/unit/libexpr/trivial.cc
index 171727ac7..c984657fd 100644
--- a/tests/unit/libexpr/trivial.cc
+++ b/tests/unit/libexpr/trivial.cc
@@ -59,6 +59,11 @@ namespace nix {
         ASSERT_THAT(v, IsFloatEq(1.234));
     }
 
+    TEST_F(TrivialExpressionTest, pointfloat) {
+        auto v = eval(".234");
+        ASSERT_THAT(v, IsFloatEq(0.234));
+    }
+
     TEST_F(TrivialExpressionTest, updateAttrs) {
         auto v = eval("{ a = 1; } // { b = 2; a = 3; }");
         ASSERT_THAT(v, IsAttrsOfSize(2));
@@ -81,6 +86,18 @@ namespace nix {
         ASSERT_THAT(v, IsTrue());
     }
 
+    TEST_F(TrivialExpressionTest, urlLiteral) {
+        auto v = eval("https://nixos.org");
+        ASSERT_THAT(v, IsStringEq("https://nixos.org"));
+    }
+
+    TEST_F(TrivialExpressionTest, noUrlLiteral) {
+        ExperimentalFeatureSettings mockXpSettings;
+        mockXpSettings.set("experimental-features", "no-url-literals");
+
+        ASSERT_THROW(eval("https://nixos.org", true, mockXpSettings), Error);
+    }
+
     TEST_F(TrivialExpressionTest, withFound) {
         auto v = eval("with { a = 23; }; a");
         ASSERT_THAT(v, IsIntEq(23));
@@ -193,4 +210,40 @@ namespace nix {
     TEST_F(TrivialExpressionTest, orCantBeUsed) {
         ASSERT_THROW(eval("let or = 1; in or"), Error);
     }
+
+    // pipes are gated behind an experimental feature flag
+    TEST_F(TrivialExpressionTest, pipeDisabled) {
+        ASSERT_THROW(eval("let add = l: r: l + r; in ''a'' |> add ''b''"), Error);
+        ASSERT_THROW(eval("let add = l: r: l + r; in ''a'' <| add ''b''"), Error);
+    }
+
+    TEST_F(TrivialExpressionTest, pipeRight) {
+        ExperimentalFeatureSettings mockXpSettings;
+        mockXpSettings.set("experimental-features", "pipe-operator");
+
+        auto v = eval("let add = l: r: l + r; in ''a'' |> add ''b''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("ba"));
+        v = eval("let add = l: r: l + r; in ''a'' |> add ''b'' |> add ''c''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("cba"));
+    }
+
+    TEST_F(TrivialExpressionTest, pipeLeft) {
+        ExperimentalFeatureSettings mockXpSettings;
+        mockXpSettings.set("experimental-features", "pipe-operator");
+
+        auto v = eval("let add = l: r: l + r; in add ''a'' <| ''b''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("ab"));
+        v = eval("let add = l: r: l + r; in add ''a'' <| add ''b'' <| ''c''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("abc"));
+    }
+
+    TEST_F(TrivialExpressionTest, pipeMixed) {
+        ExperimentalFeatureSettings mockXpSettings;
+        mockXpSettings.set("experimental-features", "pipe-operator");
+
+        auto v = eval("let add = l: r: l + r; in add ''a'' <| ''b'' |> add ''c''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("acb"));
+        v = eval("let add = l: r: l + r; in ''a'' |> add <| ''c''", true, mockXpSettings);
+        ASSERT_THAT(v, IsStringEq("ac"));
+    }
 } /* namespace nix */