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-rw-r--r--nix/utils/tests/.skip-subtree1
-rw-r--r--nix/utils/tests/default.nix110
-rw-r--r--nix/utils/tests/directory/file0
l---------nix/utils/tests/missing1
l---------nix/utils/tests/symlink-directory1
l---------nix/utils/tests/symlink-file1
l---------nix/utils/tests/symlink-symlink-directory1
l---------nix/utils/tests/symlink-symlink-file1
8 files changed, 116 insertions, 0 deletions
diff --git a/nix/utils/tests/.skip-subtree b/nix/utils/tests/.skip-subtree
new file mode 100644
index 000000000000..1efb1b9476ba
--- /dev/null
+++ b/nix/utils/tests/.skip-subtree
@@ -0,0 +1 @@
+subdirectories are just test cases
diff --git a/nix/utils/tests/default.nix b/nix/utils/tests/default.nix
new file mode 100644
index 000000000000..d5159a8433b4
--- /dev/null
+++ b/nix/utils/tests/default.nix
@@ -0,0 +1,110 @@
+{ depot, lib, ... }:
+
+let
+  inherit (depot.nix.runTestsuite)
+    runTestsuite
+    it
+    assertEq
+    assertThrows
+    assertDoesNotThrow
+    ;
+
+  inherit (depot.nix.utils)
+    isDirectory
+    isRegularFile
+    isSymlink
+    pathType
+    storePathName
+    onlyDrvPath
+    ;
+
+  assertUtilsPred = msg: act: exp: [
+    (assertDoesNotThrow "${msg} does not throw" act)
+    (assertEq msg (builtins.tryEval act).value exp)
+  ];
+
+  pathPredicates = it "judges paths correctly" (lib.flatten [
+    # isDirectory
+    (assertUtilsPred "directory isDirectory"
+      (isDirectory ./directory)
+      true)
+    (assertUtilsPred "symlink not isDirectory"
+      (isDirectory ./symlink-directory)
+      false)
+    (assertUtilsPred "file not isDirectory"
+      (isDirectory ./directory/file)
+      false)
+    # isRegularFile
+    (assertUtilsPred "file isRegularFile"
+      (isRegularFile ./directory/file)
+      true)
+    (assertUtilsPred "symlink not isRegularFile"
+      (isRegularFile ./symlink-file)
+      false)
+    (assertUtilsPred "directory not isRegularFile"
+      (isRegularFile ./directory)
+      false)
+    # isSymlink
+    (assertUtilsPred "symlink to file isSymlink"
+      (isSymlink ./symlink-file)
+      true)
+    (assertUtilsPred "symlink to directory isSymlink"
+      (isSymlink ./symlink-directory)
+      true)
+    (assertUtilsPred "symlink to symlink isSymlink"
+      (isSymlink ./symlink-symlink-file)
+      true)
+    (assertUtilsPred "symlink to missing file isSymlink"
+      (isSymlink ./missing)
+      true)
+    (assertUtilsPred "directory not isSymlink"
+      (isSymlink ./directory)
+      false)
+    (assertUtilsPred "file not isSymlink"
+      (isSymlink ./directory/file)
+      false)
+    # missing files throw
+    (assertThrows "isDirectory throws on missing file"
+      (isDirectory ./does-not-exist))
+    (assertThrows "isRegularFile throws on missing file"
+      (isRegularFile ./does-not-exist))
+    (assertThrows "isSymlink throws on missing file"
+      (isSymlink ./does-not-exist))
+  ]);
+
+  cheddarStorePath =
+    builtins.unsafeDiscardStringContext depot.tools.cheddar.outPath;
+
+  cleanedSource = lib.cleanSource ./.;
+
+  storePathNameTests = it "correctly gets the basename of a store path" [
+    (assertEq "base name of a derivation"
+      (storePathName depot.tools.cheddar)
+      depot.tools.cheddar.name)
+    (assertEq "base name of a store path string"
+      (storePathName cheddarStorePath)
+      depot.tools.cheddar.name)
+    (assertEq "base name of a path within a store path"
+      (storePathName "${cheddarStorePath}/bin/cheddar") "cheddar")
+    (assertEq "base name of a path"
+      (storePathName ../default.nix) "default.nix")
+    (assertEq "base name of a cleanSourced path"
+      (storePathName cleanedSource)
+      cleanedSource.name)
+  ];
+
+  onlyDrvPathTests = it "correctly updates the string context of drvPath" [
+    (assertEq "onlyDrvPath only produces path dependencies"
+      (builtins.all
+        (dep: dep.path or false)
+        (builtins.attrValues
+          (builtins.getContext (onlyDrvPath depot.tools.cheddar))))
+      true)
+  ];
+in
+
+runTestsuite "nix.utils" [
+  pathPredicates
+  storePathNameTests
+  onlyDrvPathTests
+]
diff --git a/nix/utils/tests/directory/file b/nix/utils/tests/directory/file
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/nix/utils/tests/directory/file
diff --git a/nix/utils/tests/missing b/nix/utils/tests/missing
new file mode 120000
index 000000000000..cfa0a46515b5
--- /dev/null
+++ b/nix/utils/tests/missing
@@ -0,0 +1 @@
+does-not-exist
\ No newline at end of file
diff --git a/nix/utils/tests/symlink-directory b/nix/utils/tests/symlink-directory
new file mode 120000
index 000000000000..6d0450cc2421
--- /dev/null
+++ b/nix/utils/tests/symlink-directory
@@ -0,0 +1 @@
+directory
\ No newline at end of file
diff --git a/nix/utils/tests/symlink-file b/nix/utils/tests/symlink-file
new file mode 120000
index 000000000000..cd5d01792aa4
--- /dev/null
+++ b/nix/utils/tests/symlink-file
@@ -0,0 +1 @@
+directory/file
\ No newline at end of file
diff --git a/nix/utils/tests/symlink-symlink-directory b/nix/utils/tests/symlink-symlink-directory
new file mode 120000
index 000000000000..5d6ba5247eff
--- /dev/null
+++ b/nix/utils/tests/symlink-symlink-directory
@@ -0,0 +1 @@
+symlink-directory
\ No newline at end of file
diff --git a/nix/utils/tests/symlink-symlink-file b/nix/utils/tests/symlink-symlink-file
new file mode 120000
index 000000000000..f8d9ce3659f4
--- /dev/null
+++ b/nix/utils/tests/symlink-symlink-file
@@ -0,0 +1 @@
+symlink-file
\ No newline at end of file