···

       
1
       
 
       
{ pkgs, lib, callPackage, runCommand }:

     

       
2
       
 
       
{

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
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0
       
 
       

     

       
3
       
 
       
  testEqualDerivation = callPackage ./test-equal-derivation.nix { };

     

       
4
       
 
       


     

       
5
       
 
       
  /* Checks the command output contains the specified version

     

       
6
       
-
       
   *

     

       
7
       
-
       
   * Although simplistic, this test assures that the main program

     

       
8
       
-
       
   * can run. While there's no substitute for a real test case,

     

       
9
       
-
       
   * it does catch dynamic linking errors and such. It also provides

     

       
10
       
-
       
   * some protection against accidentally building the wrong version,

     

       
11
       
-
       
   * for example when using an 'old' hash in a fixed-output derivation.

     

       
12
       
-
       
   *

     

       
13
       
-
       
   * Examples:

     

       
14
       
-
       
   *

     

       
15
       
-
       
   * passthru.tests.version = testVersion { package = hello; };

     

       
16
       
-
       
   *

     

       
17
       
-
       
   * passthru.tests.version = testVersion {

     

       
18
       
-
       
   *   package = seaweedfs;

     

       
19
       
-
       
   *   command = "weed version";

     

       
20
       
-
       
   * };

     

       
21
       
-
       
   *

     

       
22
       
-
       
   * passthru.tests.version = testVersion {

     

       
23
       
-
       
   *   package = key;

     

       
24
       
-
       
   *   command = "KeY --help";

     

       
25
       
-
       
   *   # Wrong '2.5' version in the code. Drop on next version.

     

       
26
       
-
       
   *   version = "2.5";

     

       
27
       
-
       
   * };

     

       
28
       
-
       
   */

     

       
29
       
 
       
  testVersion =

     

       
30
       
 
       
    { package,

     

       
31
       
 
       
      command ? "${package.meta.mainProgram or package.pname or package.name} --version",

     

···

       
1
       
 
       
{ pkgs, lib, callPackage, runCommand }:

     

       
2
       
 
       
{

     

       
3
       
+
       


     

       
4
       
+
       
  /* Checks that two packages produce the exact same build instructions.

     

       
5
       
+
       


     

       
6
       
+
       
     This can be used to make sure that a certain difference of configuration,

     

       
7
       
+
       
     such as the presence of an overlay does not cause a cache miss.

     

       
8
       
+
       


     

       
9
       
+
       
     When the derivations are equal, the return value is an empty file.

     

       
10
       
+
       
     Otherwise, the build log explains the difference via `nix-diff`.

     

       
11
       
+
       


     

       
12
       
+
       
     Example:

     

       
13
       
+
       


     

       
14
       
+
       
         testEqualDerivation

     

       
15
       
+
       
           "The hello package must stay the same when enabling checks."

     

       
16
       
+
       
           hello

     

       
17
       
+
       
           (hello.overrideAttrs(o: { doCheck = true; }))

     

       
18
       
+
       
  */

     

       
19
       
 
       
  testEqualDerivation = callPackage ./test-equal-derivation.nix { };

     

       
20
       
 
       


     

       
21
       
 
       
  /* Checks the command output contains the specified version

     

       
22
       
+
       


     

       
23
       
+
       
     Although simplistic, this test assures that the main program

     

       
24
       
+
       
     can run. While there's no substitute for a real test case,

     

       
25
       
+
       
     it does catch dynamic linking errors and such. It also provides

     

       
26
       
+
       
     some protection against accidentally building the wrong version,

     

       
27
       
+
       
     for example when using an 'old' hash in a fixed-output derivation.

     

       
28
       
+
       


     

       
29
       
+
       
     Examples:

     

       
30
       
+
       


     

       
31
       
+
       
       passthru.tests.version = testVersion { package = hello; };

     

       
32
       
+
       


     

       
33
       
+
       
       passthru.tests.version = testVersion {

     

       
34
       
+
       
         package = seaweedfs;

     

       
35
       
+
       
         command = "weed version";

     

       
36
       
+
       
       };

     

       
37
       
+
       


     

       
38
       
+
       
       passthru.tests.version = testVersion {

     

       
39
       
+
       
         package = key;

     

       
40
       
+
       
         command = "KeY --help";

     

       
41
       
+
       
         # Wrong '2.5' version in the code. Drop on next version.

     

       
42
       
+
       
         version = "2.5";

     

       
43
       
+
       
       };

     

       
44
       
+
       
  */

     

       
45
       
 
       
  testVersion =

     

       
46
       
 
       
    { package,

     

       
47
       
 
       
      command ? "${package.meta.mainProgram or package.pname or package.name} --version",

     

···

       
1
       
 
       
{ lib, runCommand, emptyFile, nix-diff }:

     

       
2
       
 
       


     

       
3
       
-
       
/*

     

       
4
       
-
       
  Checks that two packages produce the exact same build instructions.

     

       
5
       
-
       


     

       
6
       
-
       
  This can be used to make sure that a certain difference of configuration,

     

       
7
       
-
       
  such as the presence of an overlay does not cause a cache miss.

     

       
8
       
-
       


     

       
9
       
-
       
  When the derivations are equal, the return value is an empty file.

     

       
10
       
-
       
  Otherwise, the build log explains the difference via `nix-diff`.

     

       
11
       
-
       


     

       
12
       
-
       
  Example:

     

       
13
       
-
       


     

       
14
       
-
       
      testEqualDerivation

     

       
15
       
-
       
        "The hello package must stay the same when enabling checks."

     

       
16
       
-
       
        hello

     

       
17
       
-
       
        (hello.overrideAttrs(o: { doCheck = true; }))

     

       
18
       
-
       


     

       
19
       
-
       
*/

     

       
20
       
 
       
assertion: a: b:

     

       
21
       
 
       
let

     

       
22
       
 
       
  drvA = builtins.unsafeDiscardOutputDependency a.drvPath or (throw "testEqualDerivation second argument must be a package");

     

···

       
1
       
 
       
{ lib, runCommand, emptyFile, nix-diff }:

     

       
2
       
 
       


     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
3
       
 
       
assertion: a: b:

     

       
4
       
 
       
let

     

       
5
       
 
       
  drvA = builtins.unsafeDiscardOutputDependency a.drvPath or (throw "testEqualDerivation second argument must be a package");