fix: return error instead of log.Fatalf() (#5625)

* fix: return error instead of log.Fatalf()

* chore: add meaningful message to error output

* chore: add meaningful message to fatal function

api/internal/accumulator/namereferencetransformer_test.go

@@ -590,7 +590,7 @@ func TestNameReferenceUnhappyRun(t *testing.T) {
 func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 	rf := provider.NewDefaultDepProvider().GetResourceFactory()
 
-	v1 := rf.FromMapWithName(
+	v1, err := rf.FromMapWithName(
 		"volume1",
 		map[string]interface{}{
 			"apiVersion": "v1",
@@ -599,7 +599,10 @@ func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 				"name": "someprefix-volume1",
 			},
 		})
-	c1 := rf.FromMapWithName(
+	if err != nil {
+		t.Fatalf("failed to get new instance with given name: %v", err)
+	}
+	c1, err := rf.FromMapWithName(
 		"claim1",
 		map[string]interface{}{
 			"apiVersion": "v1",
@@ -612,9 +615,11 @@ func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 				"volumeName": "volume1",
 			},
 		})
-
+	if err != nil {
+		t.Fatalf("failed to get new instance with given name: %v", err)
+	}
 	v2 := v1.DeepCopy()
-	c2 := rf.FromMapWithName(
+	c2, err := rf.FromMapWithName(
 		"claim1",
 		map[string]interface{}{
 			"apiVersion": "v1",
@@ -627,6 +632,9 @@ func TestNameReferencePersistentVolumeHappyRun(t *testing.T) {
 				"volumeName": "someprefix-volume1",
 			},
 		})
+	if err != nil {
+		t.Fatalf("failed to get new instance with given name: %v", err)
+	}
 
 	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(v1).AddR(c1).ResMap()
 

api/internal/accumulator/resaccumulator_test.go

@@ -64,7 +64,7 @@ func makeResAccumulator(t *testing.T) *ResAccumulator {
 					"name": "backendTwo",
 				}}).ResMap())
 	if err != nil {
-		t.Fatalf("unexpected err: %v", err)
+		t.Fatalf("failed to append resources: %v", err)
 	}
 	return ra
 }
@@ -143,8 +143,8 @@ func expectLog(t *testing.T, log bytes.Buffer, expect string) {
 func TestResolveVarsVarNeedsDisambiguation(t *testing.T) {
 	ra := makeResAccumulator(t)
 	rm0 := resmap.New()
-	err := rm0.Append(
-		provider.NewDefaultDepProvider().GetResourceFactory().FromMap(
+
+	r, err := provider.NewDefaultDepProvider().GetResourceFactory().FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Service",
@@ -152,13 +152,17 @@ func TestResolveVarsVarNeedsDisambiguation(t *testing.T) {
 				"name":      "backendOne",
 				"namespace": "fooNamespace",
 			},
-			}))
+		})
 	if err != nil {
-		t.Fatalf("unexpected err: %v", err)
+		t.Fatalf("failed to get instance of resources: %v", err)
+	}
+	err = rm0.Append(r)
+	if err != nil {
+		t.Fatalf("failed to append a resource to ResMap: %v", err)
 	}
 	err = ra.AppendAll(rm0)
 	if err != nil {
-		t.Fatalf("unexpected err: %v", err)
+		t.Fatalf("failed to append a resource to ResAccumulator: %v", err)
 	}
 
 	err = ra.MergeVars([]types.Var{
@@ -227,7 +231,11 @@ func TestResolveVarConflicts(t *testing.T) {
 	// create accumulators holding apparently conflicting vars that are not
 	// actually in conflict because they point to the same concrete value.
 	rm0 := resmap.New()
-	err := rm0.Append(rf.FromMap(fooAws))
+	r0, err0 := rf.FromMap(fooAws)
+	if err0 != nil {
+		t.Fatalf("failed to get instance of resources: %v", err0)
+	}
+	err := rm0.Append(r0)
 	require.NoError(t, err)
 	ac0 := MakeEmptyAccumulator()
 	err = ac0.AppendAll(rm0)
@@ -236,7 +244,11 @@ func TestResolveVarConflicts(t *testing.T) {
 	require.NoError(t, err)
 
 	rm1 := resmap.New()
-	err = rm1.Append(rf.FromMap(barAws))
+	r1, err1 := rf.FromMap(barAws)
+	if err1 != nil {
+		t.Fatalf("failed to get instance of resources: %v", err1)
+	}
+	err = rm1.Append(r1)
 	require.NoError(t, err)
 	ac1 := MakeEmptyAccumulator()
 	err = ac1.AppendAll(rm1)
@@ -255,7 +267,11 @@ func TestResolveVarConflicts(t *testing.T) {
 	// two above (because it contains a variable whose name is used in the other
 	// accumulators AND whose concrete values are different).
 	rm2 := resmap.New()
-	err = rm2.Append(rf.FromMap(barGcp))
+	r2, err2 := rf.FromMap(barGcp)
+	if err2 != nil {
+		t.Fatalf("failed to get instance of resources: %v", err2)
+	}
+	err = rm2.Append(r2)
 	require.NoError(t, err)
 	ac2 := MakeEmptyAccumulator()
 	err = ac2.AppendAll(rm2)

api/internal/plugins/execplugin/execplugin_test.go

@@ -41,7 +41,7 @@ s/$BAR/bar baz/g
 	}
 	pvd := provider.NewDefaultDepProvider()
 	rf := resmap.NewFactory(pvd.GetResourceFactory())
-	pluginConfig := rf.RF().FromMap(
+	pluginConfig, err := rf.RF().FromMap(
 		map[string]interface{}{
 			"apiVersion": "someteam.example.com/v1",
 			"kind":       "SedTransformer",
@@ -51,6 +51,9 @@ s/$BAR/bar baz/g
 			"argsOneLiner": "one two 'foo bar'",
 			"argsFromFile": "sed-input.txt",
 		})
+	if err != nil {
+		t.Fatalf("failed to writes the data to a file: %v", err)
+	}
 
 	pluginConfig.RemoveBuildAnnotations()
 	pc := types.DisabledPluginConfig()

api/internal/plugins/utils/utils_test.go

@@ -32,11 +32,14 @@ func TestDeterminePluginSrcRoot(t *testing.T) {
 }
 
 func makeConfigMap(rf *resource.Factory, name, behavior string, hashValue *string) *resource.Resource {
-	r := rf.FromMap(map[string]interface{}{
+	r, err := rf.FromMap(map[string]interface{}{
 		"apiVersion": "v1",
 		"kind":       "ConfigMap",
 		"metadata":   map[string]interface{}{"name": name},
 	})
+	if err != nil {
+		panic(err)
+	}
 	annotations := map[string]string{}
 	if behavior != "" {
 		annotations[BehaviorAnnotation] = behavior

api/internal/target/kusttarget_test.go

@@ -191,9 +191,9 @@ metadata:
 
 	pvd := provider.NewDefaultDepProvider()
 	resFactory := pvd.GetResourceFactory()
+	name0 := "dply1"
 
-	resources := []*resource.Resource{
-		resFactory.FromMapWithName("dply1", map[string]interface{}{
+	r0, err := resFactory.FromMapWithName(name0, map[string]interface{}{
 		"apiVersion": "apps/v1",
 		"kind":       "Deployment",
 		"metadata": map[string]interface{}{
@@ -224,8 +224,12 @@ metadata:
 				},
 			},
 		},
-		}),
-		resFactory.FromMapWithName("ns1", map[string]interface{}{
+	})
+	if err != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name0, err)
+	}
+	name1 := "ns1"
+	r1, err := resFactory.FromMapWithName(name1, map[string]interface{}{
 		"apiVersion": "v1",
 		"kind":       "Namespace",
 		"metadata": map[string]interface{}{
@@ -237,8 +241,12 @@ metadata:
 				"note": "This is a test annotation",
 			},
 		},
-		}),
-		resFactory.FromMapWithName("literalConfigMap",
+	})
+	if err != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name1, err)
+	}
+
+	r2, _ := resFactory.FromMapWithName("literalConfigMap",
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -256,8 +264,10 @@ metadata:
 				"DB_USERNAME": "admin",
 				"DB_PASSWORD": "somepw",
 			},
-			}),
-		resFactory.FromMapWithName("secret",
+		})
+
+	name2 := "secret"
+	r3, err := resFactory.FromMapWithName(name2,
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Secret",
@@ -276,13 +286,17 @@ metadata:
 				"DB_USERNAME": base64.StdEncoding.EncodeToString([]byte("admin")),
 				"DB_PASSWORD": base64.StdEncoding.EncodeToString([]byte("somepw")),
 			},
-			}),
+		})
+	if err != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name2, err)
 	}
 
+	resources := []*resource.Resource{r0, r1, r2, r3}
+
 	expected := resmap.New()
 	for _, r := range resources {
 		if err := expected.Append(r); err != nil {
-			t.Fatalf("unexpected error %v", err)
+			t.Fatalf("failed to append resource: %v", err)
 		}
 	}
 	expected.RemoveBuildAnnotations()
@@ -354,31 +368,43 @@ metadata:
 	pvd := provider.NewDefaultDepProvider()
 	resFactory := pvd.GetResourceFactory()
 
-	resources := []*resource.Resource{
-		resFactory.FromMapWithName("deployment1", map[string]interface{}{
+	name0 := "deployment1"
+	r0, err0 := resFactory.FromMapWithName(name0, map[string]interface{}{
 		"apiVersion": "apps/v1",
 		"kind":       "Deployment",
 		"metadata": map[string]interface{}{
 			"name":      "foo-deployment1-bar",
 			"namespace": "ns1",
 		},
-		}), resFactory.FromMapWithName("config", map[string]interface{}{
+	})
+	if err0 != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name0, err0)
+	}
+	name1 := "config"
+	r1, err1 := resFactory.FromMapWithName(name1, map[string]interface{}{
 		"apiVersion": "v1",
 		"kind":       "ConfigMap",
 		"metadata": map[string]interface{}{
 			"name":      "config-bar",
 			"namespace": "ns1",
 		},
-		}), resFactory.FromMapWithName("secret", map[string]interface{}{
+	})
+	if err1 != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name1, err1)
+	}
+	name2 := "secret"
+	r2, err2 := resFactory.FromMapWithName(name2, map[string]interface{}{
 		"apiVersion": "v1",
 		"kind":       "Secret",
 		"metadata": map[string]interface{}{
 			"name":      "foo-secret",
 			"namespace": "ns1",
 		},
-		}),
+	})
+	if err2 != nil {
+		t.Fatalf("failed to get instance with given name %v: %v", name2, err2)
 	}
-
+	var resources = []*resource.Resource{r0, r1, r2}
 	expected := resmap.New()
 	for _, r := range resources {
 		err := expected.Append(r)

api/resmap/reswrangler_test.go

@@ -73,7 +73,7 @@ func doRemove(t *testing.T, w ResMap, id resid.ResId) {
 
 // Make a resource with a predictable name.
 func makeCm(i int) *resource.Resource {
-	return rf.FromMap(
+	r, err := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -81,6 +81,10 @@ func makeCm(i int) *resource.Resource {
 				"name": fmt.Sprintf("cm%03d", i),
 			},
 		})
+	if err != nil {
+		panic(err)
+	}
+	return r
 }
 
 // Maintain the class invariant that no two
@@ -229,7 +233,7 @@ metadata:
 func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 	cmap := resid.NewGvk("", "v1", "ConfigMap")
 
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -237,7 +241,10 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 				"name": "alice",
 			},
 		})
-	r2 := rf.FromMap(
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -245,7 +252,10 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 				"name": "bob",
 			},
 		})
-	r3 := rf.FromMap(
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
+	r3, err3 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -254,7 +264,10 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
-	r4 := rf.FromMap(
+	if err3 != nil {
+		t.Fatalf("failed to get new instance: %v", err3)
+	}
+	r4, err4 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -263,7 +276,10 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
-	r5 := rf.FromMap(
+	if err4 != nil {
+		t.Fatalf("failed to get new instance: %v", err4)
+	}
+	r5, err5 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Deployment",
@@ -272,6 +288,9 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
+	if err5 != nil {
+		t.Fatalf("failed to get new instance: %v", err5)
+	}
 
 	m := resmaptest_test.NewRmBuilder(t, rf).
 		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).ResMap()
@@ -367,7 +386,7 @@ func TestGetMatchingResourcesByCurrentId(t *testing.T) {
 }
 
 func TestGetMatchingResourcesByAnyId(t *testing.T) {
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -380,7 +399,10 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 				},
 			},
 		})
-	r2 := rf.FromMap(
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -393,7 +415,10 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 				},
 			},
 		})
-	r3 := rf.FromMap(
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
+	r3, err3 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -407,7 +432,10 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 				},
 			},
 		})
-	r4 := rf.FromMap(
+	if err3 != nil {
+		t.Fatalf("failed to get new instance: %v", err3)
+	}
+	r4, err4 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -421,7 +449,10 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 				},
 			},
 		})
-	r5 := rf.FromMap(
+	if err4 != nil {
+		t.Fatalf("failed to get new instance: %v", err4)
+	}
+	r5, err5 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "Deployment",
@@ -430,6 +461,9 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
+	if err5 != nil {
+		t.Fatalf("failed to get new instance: %v", err5)
+	}
 
 	m := resmaptest_test.NewRmBuilder(t, rf).
 		AddR(r1).AddR(r2).AddR(r3).AddR(r4).AddR(r5).ResMap()
@@ -498,7 +532,7 @@ func TestGetMatchingResourcesByAnyId(t *testing.T) {
 }
 
 func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -506,7 +540,10 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"name": "alice",
 			},
 		})
-	r2 := rf.FromMap(
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -514,7 +551,10 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"name": "bob",
 			},
 		})
-	r3 := rf.FromMap(
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
+	r3, err3 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -523,7 +563,10 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
-	r4 := rf.FromMap(
+	if err3 != nil {
+		t.Fatalf("failed to get new instance: %v", err3)
+	}
+	r4, err4 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -532,7 +575,10 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
-	r5 := rf.FromMap(
+	if err4 != nil {
+		t.Fatalf("failed to get new instance: %v", err4)
+	}
+	r5, err5 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -541,8 +587,11 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
+	if err5 != nil {
+		t.Fatalf("failed to get new instance: %v", err5)
+	}
 	r5.AddNamePrefix("little-")
-	r6 := rf.FromMap(
+	r6, err6 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -551,8 +600,11 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"namespace": "happy",
 			},
 		})
+	if err6 != nil {
+		t.Fatalf("failed to get new instance: %v", err6)
+	}
 	r6.AddNamePrefix("little-")
-	r7 := rf.FromMap(
+	r7, err7 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "rbac.authorization.k8s.io/v1",
 			"kind":       "ClusterRoleBinding",
@@ -560,6 +612,9 @@ func TestSubsetThatCouldBeReferencedByResource(t *testing.T) {
 				"name": "meh",
 			},
 		})
+	if err7 != nil {
+		t.Fatalf("failed to get new instance: %v", err7)
+	}
 
 	tests := map[string]struct {
 		filter   *resource.Resource
@@ -639,7 +694,7 @@ func TestDeepCopy(t *testing.T) {
 }
 
 func TestErrorIfNotEqualSets(t *testing.T) {
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -647,7 +702,10 @@ func TestErrorIfNotEqualSets(t *testing.T) {
 				"name": "cm1",
 			},
 		})
-	r2 := rf.FromMap(
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -655,7 +713,10 @@ func TestErrorIfNotEqualSets(t *testing.T) {
 				"name": "cm2",
 			},
 		})
-	r3 := rf.FromMap(
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
+	r3, err3 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -664,6 +725,9 @@ func TestErrorIfNotEqualSets(t *testing.T) {
 				"namespace": "system",
 			},
 		})
+	if err3 != nil {
+		t.Fatalf("failed to get new instance: %v", err3)
+	}
 
 	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
 	if err := m1.ErrorIfNotEqualSets(m1); err != nil {
@@ -712,7 +776,7 @@ func TestErrorIfNotEqualSets(t *testing.T) {
 }
 
 func TestErrorIfNotEqualLists(t *testing.T) {
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -720,7 +784,10 @@ func TestErrorIfNotEqualLists(t *testing.T) {
 				"name": "cm1",
 			},
 		})
-	r2 := rf.FromMap(
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -728,7 +795,10 @@ func TestErrorIfNotEqualLists(t *testing.T) {
 				"name": "cm2",
 			},
 		})
-	r3 := rf.FromMap(
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
+	r3, err3 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -737,6 +807,9 @@ func TestErrorIfNotEqualLists(t *testing.T) {
 				"namespace": "system",
 			},
 		})
+	if err3 != nil {
+		t.Fatalf("failed to get new instance: %v", err3)
+	}
 
 	m1 := resmaptest_test.NewRmBuilder(t, rf).AddR(r1).AddR(r2).AddR(r3).ResMap()
 	if err := m1.ErrorIfNotEqualLists(m1); err != nil {
@@ -780,7 +853,7 @@ func TestErrorIfNotEqualLists(t *testing.T) {
 }
 
 func TestAppendAll(t *testing.T) {
-	r1 := rf.FromMap(
+	r1, err1 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -788,8 +861,11 @@ func TestAppendAll(t *testing.T) {
 				"name": "foo-deploy1",
 			},
 		})
+	if err1 != nil {
+		t.Fatalf("failed to get new instance: %v", err1)
+	}
 	input1 := rmF.FromResource(r1)
-	r2 := rf.FromMap(
+	r2, err2 := rf.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "StatefulSet",
@@ -797,6 +873,9 @@ func TestAppendAll(t *testing.T) {
 				"name": "bar-stateful",
 			},
 		})
+	if err2 != nil {
+		t.Fatalf("failed to get new instance: %v", err2)
+	}
 	input2 := rmF.FromResource(r2)
 
 	expected := New()

api/resource/factory.go

@@ -41,28 +41,26 @@ func (rf *Factory) Hasher() ifc.KustHasher {
 }
 
 // FromMap returns a new instance of Resource.
-func (rf *Factory) FromMap(m map[string]interface{}) *Resource {
+func (rf *Factory) FromMap(m map[string]interface{}) (*Resource, error) {
 	res, err := rf.FromMapAndOption(m, nil)
 	if err != nil {
-		// TODO: return err instead of log.
-		log.Fatalf("failed to create resource from map: %v", err)
+		return nil, fmt.Errorf("failed to create resource from map: %w", err)
 	}
-	return res
+	return res, nil
 }
 
 // FromMapWithName returns a new instance with the given "original" name.
-func (rf *Factory) FromMapWithName(n string, m map[string]interface{}) *Resource {
+func (rf *Factory) FromMapWithName(n string, m map[string]interface{}) (*Resource, error) {
 	return rf.FromMapWithNamespaceAndName(resid.DefaultNamespace, n, m)
 }
 
 // FromMapWithNamespaceAndName returns a new instance with the given "original" namespace.
-func (rf *Factory) FromMapWithNamespaceAndName(ns string, n string, m map[string]interface{}) *Resource {
+func (rf *Factory) FromMapWithNamespaceAndName(ns string, n string, m map[string]interface{}) (*Resource, error) {
 	r, err := rf.FromMapAndOption(m, nil)
 	if err != nil {
-		// TODO: return err instead of log.
-		log.Fatalf("failed to create resource from map: %v", err)
+		return nil, fmt.Errorf("failed to create resource from map: %w", err)
 	}
-	return r.setPreviousId(ns, n, r.GetKind())
+	return r.setPreviousId(ns, n, r.GetKind()), nil
 }
 
 // FromMapAndOption returns a new instance of Resource with given options.

api/resource/factory_test.go

@@ -274,24 +274,32 @@ kind: List
 			},
 		},
 	}
-	testDeploymentA := factory.FromMap(
+	deploymentA := "deployment-a"
+	testDeploymentA, errA := factory.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
 			"metadata": map[string]interface{}{
-				"name": "deployment-a",
+				"name": deploymentA,
 			},
 			"spec": testDeploymentSpec,
 		})
-	testDeploymentB := factory.FromMap(
+	if errA != nil {
+		t.Fatalf("failed to create new instance with %v: %v", deploymentA, errA)
+	}
+	deploymentB := "deployment-b"
+	testDeploymentB, errB := factory.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
 			"metadata": map[string]interface{}{
-				"name": "deployment-b",
+				"name": deploymentB,
 			},
 			"spec": testDeploymentSpec,
 		})
+	if errB != nil {
+		t.Fatalf("failed to create new instance with %v: %v", deploymentB, errB)
+	}
 
 	fSys := filesys.MakeFsInMemory()
 	fSys.WriteFile(string(patchGood1), []byte(patch1))
@@ -308,6 +316,16 @@ kind: List
 		t.Fatal(err)
 	}
 
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("failed to create test deployment: %v", err)
+	}
+
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("failed to create test config: %v", err)
+	}
+
 	tests := map[string]struct {
 		input       []types.PatchStrategicMerge
 		expectedOut []*Resource
@@ -315,7 +333,7 @@ kind: List
 	}{
 		"happy": {
 			input:       []types.PatchStrategicMerge{patchGood1, patchGood2},
-			expectedOut: []*Resource{testDeployment, testConfigMap},
+			expectedOut: []*Resource{td, tc},
 			expectedErr: false,
 		},
 		"badFileName": {
@@ -330,7 +348,7 @@ kind: List
 		},
 		"listOfPatches": {
 			input:       []types.PatchStrategicMerge{patchList},
-			expectedOut: []*Resource{testDeployment, testConfigMap},
+			expectedOut: []*Resource{td, tc},
 			expectedErr: false,
 		},
 		"listWithAnchorReference": {

api/resource/idset_test.go

@@ -12,21 +12,45 @@ import (
 
 func TestIdSet_Empty(t *testing.T) {
 	s := MakeIdSet([]*Resource{})
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("Failed to create test deployment: %v", err)
+	}
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("Failed to create test config: %v", err)
+	}
 	assert.Equal(t, 0, s.Size())
-	assert.False(t, s.Contains(testDeployment.CurId()))
-	assert.False(t, s.Contains(testConfigMap.CurId()))
+	assert.False(t, s.Contains(td.CurId()))
+	assert.False(t, s.Contains(tc.CurId()))
 }
 
 func TestIdSet_One(t *testing.T) {
-	s := MakeIdSet([]*Resource{testDeployment})
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("failed to create test deployment: %v", err)
+	}
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("failed to create test config: %v", err)
+	}
+	s := MakeIdSet([]*Resource{td})
 	assert.Equal(t, 1, s.Size())
-	assert.True(t, s.Contains(testDeployment.CurId()))
-	assert.False(t, s.Contains(testConfigMap.CurId()))
+	assert.True(t, s.Contains(td.CurId()))
+	assert.False(t, s.Contains(tc.CurId()))
 }
 
 func TestIdSet_Two(t *testing.T) {
-	s := MakeIdSet([]*Resource{testDeployment, testConfigMap})
-	assert.Equal(t, 2, s.Size())
-	assert.True(t, s.Contains(testDeployment.CurId()))
-	assert.True(t, s.Contains(testConfigMap.CurId()))
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("failed to create test Deployment: %v", err)
+	}
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("failed to create test Config: %v", err)
+	}
+	s := MakeIdSet([]*Resource{td, tc})
+	assert.Equal(t, 2, s.Size())
+	assert.True(t, s.Contains(td.CurId()))
+	assert.True(t, s.Contains(tc.CurId()))
 }

api/resource/resource_test.go

@@ -20,7 +20,8 @@ import (
 
 var factory = provider.NewDefaultDepProvider().GetResourceFactory()
 
-var testConfigMap = factory.FromMap(
+func createTestConfigMap() (*Resource, error) {
+	res, err := factory.FromMap(
 		map[string]interface{}{
 			"apiVersion": "v1",
 			"kind":       "ConfigMap",
@@ -29,11 +30,17 @@ var testConfigMap = factory.FromMap(
 				"namespace": "hundred-acre-wood",
 			},
 		})
+	if err != nil {
+		return nil, fmt.Errorf("failed to create test config: %w", err)
+	}
+	return res, nil
+}
 
 //nolint:gosec
 const configMapAsString = `{"apiVersion":"v1","kind":"ConfigMap","metadata":{"name":"winnie","namespace":"hundred-acre-wood"}}`
 
-var testDeployment = factory.FromMap(
+func createTestDeployment() (*Resource, error) {
+	res, err := factory.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -41,6 +48,11 @@ var testDeployment = factory.FromMap(
 				"name": "pooh",
 			},
 		})
+	if err != nil {
+		return nil, fmt.Errorf("failed to create Deployment: %w", err)
+	}
+	return res, nil
+}
 
 const deploymentAsString = `{"apiVersion":"apps/v1","kind":"Deployment","metadata":{"name":"pooh"}}`
 
@@ -50,9 +62,13 @@ kind: Deployment
 metadata:
   name: pooh
 `
-	yaml, err := testDeployment.AsYAML()
+	td, err := createTestDeployment()
 	if err != nil {
-		t.Fatal(err)
+		t.Fatalf("failed to create test deployment: %s", err)
+	}
+	yaml, err := td.AsYAML()
+	if err != nil {
+		t.Fatalf("failed to get yaml: %s", err)
 	}
 	if string(yaml) != expected {
 		t.Fatalf("--- expected\n%s\n--- got\n%s\n", expected, string(yaml))
@@ -60,16 +76,24 @@ metadata:
 }
 
 func TestResourceString(t *testing.T) {
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("failed to create test deployment: %v", err)
+	}
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("failed to create test config: %v", err)
+	}
 	tests := []struct {
 		in *Resource
 		s  string
 	}{
 		{
-			in: testConfigMap,
+			in: tc,
 			s:  configMapAsString,
 		},
 		{
-			in: testDeployment,
+			in: td,
 			s:  deploymentAsString,
 		},
 	}
@@ -79,18 +103,26 @@ func TestResourceString(t *testing.T) {
 }
 
 func TestResourceId(t *testing.T) {
+	td, err := createTestDeployment()
+	if err != nil {
+		t.Fatalf("failed to create test deployment: %v", err)
+	}
+	tc, err := createTestConfigMap()
+	if err != nil {
+		t.Fatalf("failed to create test config: %v", err)
+	}
 	tests := []struct {
 		in *Resource
 		id resid.ResId
 	}{
 		{
-			in: testConfigMap,
+			in: tc,
 			id: resid.NewResIdWithNamespace(
 				resid.NewGvk("", "v1", "ConfigMap"),
 				"winnie", "hundred-acre-wood"),
 		},
 		{
-			in: testDeployment,
+			in: td,
 			id: resid.NewResId(
 				resid.NewGvk("apps", "v1", "Deployment"), "pooh"),
 		},
@@ -103,7 +135,7 @@ func TestResourceId(t *testing.T) {
 }
 
 func TestDeepCopy(t *testing.T) {
-	r := factory.FromMap(
+	r, err := factory.FromMap(
 		map[string]interface{}{
 			"apiVersion": "apps/v1",
 			"kind":       "Deployment",
@@ -111,6 +143,9 @@ func TestDeepCopy(t *testing.T) {
 				"name": "pooh",
 			},
 		})
+	if err != nil {
+		t.Fatalf("failed to create test config: %v", err)
+	}
 	r.AppendRefBy(resid.NewResId(resid.Gvk{Group: "somegroup", Kind: "MyKind"}, "random"))
 
 	var1 := types.Var{

api/testutils/resmaptest/rmbuilder.go

@@ -41,7 +41,11 @@ func NewSeededRmBuilderDefault(t *testing.T, m resmap.ResMap) *rmBuilder {
 }
 
 func (rm *rmBuilder) Add(m map[string]interface{}) *rmBuilder {
-	return rm.AddR(rm.rf.FromMap(m))
+	r, err := rm.rf.FromMap(m)
+	if err != nil {
+		rm.t.Fatalf("test setup failure: %v", err)
+	}
+	return rm.AddR(r)
 }
 
 func (rm *rmBuilder) AddR(r *resource.Resource) *rmBuilder {
@@ -53,7 +57,11 @@ func (rm *rmBuilder) AddR(r *resource.Resource) *rmBuilder {
 }
 
 func (rm *rmBuilder) AddWithName(n string, m map[string]interface{}) *rmBuilder {
-	err := rm.m.Append(rm.rf.FromMapWithNamespaceAndName(resid.DefaultNamespace, n, m))
+	r, err := rm.rf.FromMapWithNamespaceAndName(resid.DefaultNamespace, n, m)
+	if err != nil {
+		rm.t.Fatalf("test setup failure: %v", err)
+	}
+	err = rm.m.Append(r)
 	if err != nil {
 		rm.t.Fatalf("test setup failure: %v", err)
 	}
@@ -61,7 +69,11 @@ func (rm *rmBuilder) AddWithName(n string, m map[string]interface{}) *rmBuilder
 }
 
 func (rm *rmBuilder) AddWithNsAndName(ns string, n string, m map[string]interface{}) *rmBuilder {
-	err := rm.m.Append(rm.rf.FromMapWithNamespaceAndName(ns, n, m))
+	r, err := rm.rf.FromMapWithNamespaceAndName(ns, n, m)
+	if err != nil {
+		rm.t.Fatalf("test setup failure: %v", err)
+	}
+	err = rm.m.Append(r)
 	if err != nil {
 		rm.t.Fatalf("test setup failure: %v", err)
 	}
@@ -69,7 +81,7 @@ func (rm *rmBuilder) AddWithNsAndName(ns string, n string, m map[string]interfac
 }
 
 func (rm *rmBuilder) ReplaceResource(m map[string]interface{}) *rmBuilder {
-	r := rm.rf.FromMap(m)
+	r, _ := rm.rf.FromMap(m)
 	_, err := rm.m.Replace(r)
 	if err != nil {
 		rm.t.Fatalf("test setup failure: %v", err)