Do not use single letter packages in unit-tests (#46665)

#45205 already removed previous use of single letter packages
from unit tests, in view of reserving `c` as a language (see #45191).

Some use of them has been re-introduced accidentally in #46382, and
is making unit-tests fail in the feature branch #45189 since there
`c` is a virtual package.

Signed-off-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>

lib/spack/spack/test/spec_semantics.py

@@ -72,44 +72,44 @@ def virtuals_provided(self, root):
     monkeypatch.setattr(Spec, "_splice_match", splice_match)
     monkeypatch.setattr(Spec, "_virtuals_provided", virtuals_provided)
 
-    g1_red = Spec("g color=red")
+    g1_red = Spec("pkg-g color=red")
     g1_red.versions = vn.VersionList([vn.Version("1")])
-    g2_red = Spec("g color=red")
+    g2_red = Spec("pkg-g color=red")
     g2_red.versions = vn.VersionList([vn.Version("2")])
-    g2_blue = Spec("g color=blue")
+    g2_blue = Spec("pkg-g color=blue")
     g2_blue.versions = vn.VersionList([vn.Version("2")])
-    g3_blue = Spec("g color=blue")
+    g3_blue = Spec("pkg-g color=blue")
     g3_blue.versions = vn.VersionList([vn.Version("3")])
 
     depflag = dt.LINK | dt.BUILD
-    e_red = Spec("e color=red")
+    e_red = Spec("pkg-e color=red")
     e_red._add_dependency(g1_red, depflag=depflag, virtuals=())
-    e_blue = Spec("e color=blue")
+    e_blue = Spec("pkg-e color=blue")
     e_blue._add_dependency(g3_blue, depflag=depflag, virtuals=())
 
-    d_red = Spec("d color=red")
+    d_red = Spec("pkg-d color=red")
     d_red._add_dependency(g1_red, depflag=depflag, virtuals=())
-    d_blue = Spec("d color=blue")
+    d_blue = Spec("pkg-d color=blue")
     d_blue._add_dependency(g2_blue, depflag=depflag, virtuals=())
 
-    b_red = Spec("b color=red")
+    b_red = Spec("pkg-b color=red")
     b_red._add_dependency(e_red, depflag=depflag, virtuals=())
     b_red._add_dependency(d_red, depflag=depflag, virtuals=())
     b_red._add_dependency(g1_red, depflag=depflag, virtuals=())
 
-    f_blue = Spec("f color=blue")
+    f_blue = Spec("pkg-f color=blue")
     f_blue._add_dependency(e_blue, depflag=depflag, virtuals=())
     f_blue._add_dependency(g3_blue, depflag=depflag, virtuals=())
 
-    c_red = Spec("c color=red")
+    c_red = Spec("pkg-c color=red")
     c_red._add_dependency(d_red, depflag=depflag, virtuals=())
     c_red._add_dependency(g2_red, depflag=depflag, virtuals=())
-    c_blue = Spec("c color=blue")
+    c_blue = Spec("pkg-c color=blue")
     c_blue._add_dependency(d_blue, depflag=depflag, virtuals=())
     c_blue._add_dependency(f_blue, depflag=depflag, virtuals=())
     c_blue._add_dependency(g3_blue, depflag=depflag, virtuals=())
 
-    a_red = Spec("a color=red")
+    a_red = Spec("pkg-a color=red")
     a_red._add_dependency(b_red, depflag=depflag, virtuals=())
     a_red._add_dependency(c_red, depflag=depflag, virtuals=())
     a_red._add_dependency(g2_red, depflag=depflag, virtuals=())
@@ -1055,8 +1055,8 @@ def test_splice_intransitive_complex(self, setup_complex_splice):
 
         spliced = a_red.splice(c_blue, transitive=False)
         assert spliced.satisfies(
-            "a color=red ^b color=red ^c color=blue "
+            "pkg-a color=red ^pkg-b color=red ^pkg-c color=blue "
-            "^d color=red ^e color=red ^f color=blue ^g@3 color=blue"
+            "^pkg-d color=red ^pkg-e color=red ^pkg-f color=blue ^pkg-g@3 color=blue"
         )
         assert set(spliced.dependencies(deptype=dt.BUILD)) == set(
             a_red.dependencies(deptype=dt.BUILD)
@@ -1065,67 +1065,79 @@ def test_splice_intransitive_complex(self, setup_complex_splice):
         # We cannot check spliced["b"].build_spec is spliced["b"] because Spec.__getitem__ creates
         # a new wrapper object on each invocation. So we select once and check on that object
         # For the rest of the unchanged specs we will just check the s._build_spec is None.
-        b = spliced["b"]
+        b = spliced["pkg-b"]
-        assert b == a_red["b"]
+        assert b == a_red["pkg-b"]
         assert b.build_spec is b
         assert set(b.dependents()) == {spliced}
 
-        assert spliced["c"].satisfies(
+        assert spliced["pkg-c"].satisfies(
-            "c color=blue ^d color=red ^e color=red ^f color=blue ^g@3 color=blue"
+            "pkg-c color=blue ^pkg-d color=red ^pkg-e color=red "
+            "^pkg-f color=blue ^pkg-g@3 color=blue"
         )
-        assert set(spliced["c"].dependencies(deptype=dt.BUILD)) == set(
+        assert set(spliced["pkg-c"].dependencies(deptype=dt.BUILD)) == set(
             c_blue.dependencies(deptype=dt.BUILD)
         )
-        assert spliced["c"].build_spec == c_blue
+        assert spliced["pkg-c"].build_spec == c_blue
-        assert set(spliced["c"].dependents()) == {spliced}
+        assert set(spliced["pkg-c"].dependents()) == {spliced}
 
-        assert spliced["d"] == a_red["d"]
+        assert spliced["pkg-d"] == a_red["pkg-d"]
-        assert spliced["d"]._build_spec is None
+        assert spliced["pkg-d"]._build_spec is None
         # Since D had a parent changed, it has a split edge for link vs build dependent
         # note: spliced["b"] == b_red, referenced differently to preserve logic
-        assert set(spliced["d"].dependents()) == {spliced["b"], spliced["c"], a_red["c"]}
+        assert set(spliced["pkg-d"].dependents()) == {
-        assert set(spliced["d"].dependents(deptype=dt.BUILD)) == {a_red["b"], a_red["c"]}
+            spliced["pkg-b"],
+            spliced["pkg-c"],
+            a_red["pkg-c"],
+        }
+        assert set(spliced["pkg-d"].dependents(deptype=dt.BUILD)) == {
+            a_red["pkg-b"],
+            a_red["pkg-c"],
+        }
 
-        assert spliced["e"] == a_red["e"]
+        assert spliced["pkg-e"] == a_red["pkg-e"]
-        assert spliced["e"]._build_spec is None
+        assert spliced["pkg-e"]._build_spec is None
         # Because a copy of e is used, it does not have dependnets in the original specs
-        assert set(spliced["e"].dependents()) == {spliced["b"], spliced["f"]}
+        assert set(spliced["pkg-e"].dependents()) == {spliced["pkg-b"], spliced["pkg-f"]}
         # Build dependent edge to f because f originally dependended on the e this was copied from
-        assert set(spliced["e"].dependents(deptype=dt.BUILD)) == {spliced["b"]}
+        assert set(spliced["pkg-e"].dependents(deptype=dt.BUILD)) == {spliced["pkg-b"]}
 
-        assert spliced["f"].satisfies("f color=blue ^e color=red ^g@3 color=blue")
+        assert spliced["pkg-f"].satisfies("pkg-f color=blue ^pkg-e color=red ^pkg-g@3 color=blue")
-        assert set(spliced["f"].dependencies(deptype=dt.BUILD)) == set(
+        assert set(spliced["pkg-f"].dependencies(deptype=dt.BUILD)) == set(
-            c_blue["f"].dependencies(deptype=dt.BUILD)
+            c_blue["pkg-f"].dependencies(deptype=dt.BUILD)
         )
-        assert spliced["f"].build_spec == c_blue["f"]
+        assert spliced["pkg-f"].build_spec == c_blue["pkg-f"]
-        assert set(spliced["f"].dependents()) == {spliced["c"]}
+        assert set(spliced["pkg-f"].dependents()) == {spliced["pkg-c"]}
 
         # spliced["g"] is g3, but spliced["b"]["g"] is g1
-        assert spliced["g"] == a_red["g"]
+        assert spliced["pkg-g"] == a_red["pkg-g"]
-        assert spliced["g"]._build_spec is None
+        assert spliced["pkg-g"]._build_spec is None
-        assert set(spliced["g"].dependents(deptype=dt.LINK)) == {
+        assert set(spliced["pkg-g"].dependents(deptype=dt.LINK)) == {
             spliced,
-            spliced["c"],
+            spliced["pkg-c"],
-            spliced["f"],
+            spliced["pkg-f"],
-            a_red["c"],
+            a_red["pkg-c"],
         }
-        assert set(spliced["g"].dependents(deptype=dt.BUILD)) == {spliced, a_red["c"]}
+        assert set(spliced["pkg-g"].dependents(deptype=dt.BUILD)) == {spliced, a_red["pkg-c"]}
 
-        assert spliced["b"]["g"] == a_red["b"]["g"]
+        assert spliced["pkg-b"]["pkg-g"] == a_red["pkg-b"]["pkg-g"]
-        assert spliced["b"]["g"]._build_spec is None
+        assert spliced["pkg-b"]["pkg-g"]._build_spec is None
-        assert set(spliced["b"]["g"].dependents()) == {spliced["b"], spliced["d"], spliced["e"]}
+        assert set(spliced["pkg-b"]["pkg-g"].dependents()) == {
+            spliced["pkg-b"],
+            spliced["pkg-d"],
+            spliced["pkg-e"],
+        }
 
         for edge in spliced.traverse_edges(cover="edges", deptype=dt.LINK | dt.RUN):
             # traverse_edges creates a synthetic edge with no deptypes to the root
             if edge.depflag:
                 depflag = dt.LINK
                 if (edge.parent.name, edge.spec.name) not in [
-                    ("a", "c"),  # These are the spliced edges
+                    ("pkg-a", "pkg-c"),  # These are the spliced edges
-                    ("c", "d"),
+                    ("pkg-c", "pkg-d"),
-                    ("f", "e"),
+                    ("pkg-f", "pkg-e"),
-                    ("c", "g"),
+                    ("pkg-c", "pkg-g"),
-                    ("f", "g"),
+                    ("pkg-f", "pkg-g"),
-                    ("c", "f"),  # ancestor to spliced edge
+                    ("pkg-c", "pkg-f"),  # ancestor to spliced edge
                 ]:
                     depflag |= dt.BUILD
                 assert edge.depflag == depflag
@@ -1135,75 +1147,80 @@ def test_splice_transitive_complex(self, setup_complex_splice):
 
         spliced = a_red.splice(c_blue, transitive=True)
         assert spliced.satisfies(
-            "a color=red ^b color=red"
+            "pkg-a color=red ^pkg-b color=red ^pkg-c color=blue ^pkg-d color=blue "
-            "^c color=blue ^d color=blue ^e color=blue ^f color=blue ^g@3 color=blue"
+            "^pkg-e color=blue ^pkg-f color=blue ^pkg-g@3 color=blue"
         )
         assert set(spliced.dependencies(deptype=dt.BUILD)) == set(
             a_red.dependencies(deptype=dt.BUILD)
         )
         assert spliced.build_spec == a_red
 
-        assert spliced["b"].satisfies("b color=red ^d color=blue ^e color=blue ^g@2 color=blue")
+        assert spliced["pkg-b"].satisfies(
-        assert set(spliced["b"].dependencies(deptype=dt.BUILD)) == set(
+            "pkg-b color=red ^pkg-d color=blue ^pkg-e color=blue ^pkg-g@2 color=blue"
-            a_red["b"].dependencies(deptype=dt.BUILD)
         )
-        assert spliced["b"].build_spec == a_red["b"]
+        assert set(spliced["pkg-b"].dependencies(deptype=dt.BUILD)) == set(
-        assert set(spliced["b"].dependents()) == {spliced}
+            a_red["pkg-b"].dependencies(deptype=dt.BUILD)
+        )
+        assert spliced["pkg-b"].build_spec == a_red["pkg-b"]
+        assert set(spliced["pkg-b"].dependents()) == {spliced}
 
         # We cannot check spliced["b"].build_spec is spliced["b"] because Spec.__getitem__ creates
         # a new wrapper object on each invocation. So we select once and check on that object
         # For the rest of the unchanged specs we will just check the s._build_spec is None.
-        c = spliced["c"]
+        c = spliced["pkg-c"]
         assert c == c_blue
         assert c.build_spec is c
         assert set(c.dependents()) == {spliced}
 
-        assert spliced["d"] == c_blue["d"]
+        assert spliced["pkg-d"] == c_blue["pkg-d"]
-        assert spliced["d"]._build_spec is None
+        assert spliced["pkg-d"]._build_spec is None
-        assert set(spliced["d"].dependents()) == {spliced["b"], spliced["c"]}
+        assert set(spliced["pkg-d"].dependents()) == {spliced["pkg-b"], spliced["pkg-c"]}
 
-        assert spliced["e"] == c_blue["e"]
+        assert spliced["pkg-e"] == c_blue["pkg-e"]
-        assert spliced["e"]._build_spec is None
+        assert spliced["pkg-e"]._build_spec is None
-        assert set(spliced["e"].dependents()) == {spliced["b"], spliced["f"]}
+        assert set(spliced["pkg-e"].dependents()) == {spliced["pkg-b"], spliced["pkg-f"]}
 
-        assert spliced["f"] == c_blue["f"]
+        assert spliced["pkg-f"] == c_blue["pkg-f"]
-        assert spliced["f"]._build_spec is None
+        assert spliced["pkg-f"]._build_spec is None
-        assert set(spliced["f"].dependents()) == {spliced["c"]}
+        assert set(spliced["pkg-f"].dependents()) == {spliced["pkg-c"]}
 
         # spliced["g"] is g3, but spliced["d"]["g"] is g1
-        assert spliced["g"] == c_blue["g"]
+        assert spliced["pkg-g"] == c_blue["pkg-g"]
-        assert spliced["g"]._build_spec is None
+        assert spliced["pkg-g"]._build_spec is None
-        assert set(spliced["g"].dependents(deptype=dt.LINK)) == {
+        assert set(spliced["pkg-g"].dependents(deptype=dt.LINK)) == {
             spliced,
-            spliced["b"],
+            spliced["pkg-b"],
-            spliced["c"],
+            spliced["pkg-c"],
-            spliced["e"],
+            spliced["pkg-e"],
-            spliced["f"],
+            spliced["pkg-f"],
         }
         # Because a copy of g3 is used, it does not have dependents in the original specs
         # It has build dependents on these spliced specs because it is an unchanged dependency
         # for them
-        assert set(spliced["g"].dependents(deptype=dt.BUILD)) == {
+        assert set(spliced["pkg-g"].dependents(deptype=dt.BUILD)) == {
-            spliced["c"],
+            spliced["pkg-c"],
-            spliced["e"],
+            spliced["pkg-e"],
-            spliced["f"],
+            spliced["pkg-f"],
         }
 
-        assert spliced["d"]["g"] == c_blue["d"]["g"]
+        assert spliced["pkg-d"]["pkg-g"] == c_blue["pkg-d"]["pkg-g"]
-        assert spliced["d"]["g"]._build_spec is None
+        assert spliced["pkg-d"]["pkg-g"]._build_spec is None
-        assert set(spliced["d"]["g"].dependents()) == {spliced["d"]}
+        assert set(spliced["pkg-d"]["pkg-g"].dependents()) == {spliced["pkg-d"]}
 
         for edge in spliced.traverse_edges(cover="edges", deptype=dt.LINK | dt.RUN):
             # traverse_edges creates a synthetic edge with no deptypes to the root
             if edge.depflag:
                 depflag = dt.LINK
                 if (edge.parent.name, edge.spec.name) not in [
-                    ("a", "c"),  # These are the spliced edges
+                    ("pkg-a", "pkg-c"),  # These are the spliced edges
-                    ("a", "g"),
+                    ("pkg-a", "pkg-g"),
-                    ("b", "d"),
+                    ("pkg-b", "pkg-d"),
-                    ("b", "e"),
+                    ("pkg-b", "pkg-e"),
-                    ("b", "g"),
+                    ("pkg-b", "pkg-g"),
-                    ("a", "b"),  # This edge not spliced, but b was spliced invalidating edge
+                    (
+                        "pkg-a",
+                        "pkg-b",
+                    ),  # This edge not spliced, but b was spliced invalidating edge
                 ]:
                     depflag |= dt.BUILD
                 assert edge.depflag == depflag