add testcase for wasm eval

e2e/testdata/fn-eval/wasm-function/.expected/config.yaml

@@ -0,0 +1,19 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+testType: eval
+image: gcr.io/kpt-fn-demo/set-namespace:v0.5.0
+args:
+  namespace: staging
+allowWasm: true

e2e/testdata/fn-eval/wasm-function/.expected/diff.patch

@@ -0,0 +1,11 @@
+diff --git a/resources.yaml b/resources.yaml
+index e8efba7..2ac7759 100644
+--- a/resources.yaml
++++ b/resources.yaml
+@@ -15,5 +15,6 @@ apiVersion: apps/v1
+ kind: Deployment
+ metadata:
+   name: nginx-deployment
++  namespace: staging
+ spec:
+   replicas: 3

e2e/testdata/fn-eval/wasm-function/.krmignore

@@ -0,0 +1 @@
+.expected

e2e/testdata/fn-eval/wasm-function/resources.yaml

@@ -0,0 +1,19 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  replicas: 3

e2e/testdata/fn-render/basicpipeline-wasm/.expected/config.yaml

@@ -1,4 +1,4 @@
-# Copyright 2021 Google LLC
+# Copyright 2022 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

e2e/testdata/fn-render/basicpipeline-wasm/.expected/diff.patch

@@ -1,5 +1,5 @@
 diff --git a/resources.yaml b/resources.yaml
-index 7a494c9..1d36135 100644
+index ac634f3..ef2a1b1 100644
 --- a/resources.yaml
 +++ b/resources.yaml
 @@ -15,12 +15,24 @@ apiVersion: apps/v1

e2e/testdata/fn-render/basicpipeline-wasm/.expected/setup.sh

@@ -1 +1,16 @@
+#! /usr/bin/env bash
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 export KPT_FN_WASM_RUNTIME=wasmtime

e2e/testdata/fn-render/basicpipeline-wasm/.expected/teardown.sh

@@ -1 +1,16 @@
+#! /usr/bin/env bash
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 unset KPT_FN_WASM_RUNTIME

e2e/testdata/fn-render/basicpipeline-wasm/resources.yaml

@@ -1,4 +1,4 @@
-# Copyright 2021 Google LLC
+# Copyright 2022 Google LLC
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.

pkg/test/runner/runner.go

@@ -61,6 +61,8 @@ const (
 	execScript          string = "exec.sh"
 	CommandFnEval       string = "eval"
 	CommandFnRender     string = "render"
+
+	allowWasmFlag string = "--allow-alpha-wasm"
 )
 
 // NewRunner returns a new runner for pkg
@@ -195,6 +197,9 @@ func (r *Runner) runFnEval() error {
 			if destDir != "" {
 				kptArgs = append(kptArgs, "-o", destDir)
 			}
+			if r.testCase.Config.AllowWasm {
+				kptArgs = append(kptArgs, allowWasmFlag)
+			}
 			if r.testCase.Config.ImagePullPolicy != "" {
 				kptArgs = append(kptArgs, "--image-pull-policy", r.testCase.Config.ImagePullPolicy)
 			}
@@ -364,7 +369,7 @@ func (r *Runner) runFnRender() error {
 			}
 
 			if r.testCase.Config.AllowWasm {
-				kptArgs = append(kptArgs, "--allow-alpha-wasm")
+				kptArgs = append(kptArgs, allowWasmFlag)
 			}
 
 			if r.testCase.Config.DisableOutputTruncate {

thirdparty/cmdconfig/commands/cmdeval/cmdeval.go

@@ -543,6 +543,7 @@ func (r *EvalFnRunner) preRunE(c *cobra.Command, args []string) error {
 		// fn eval should remove all files when all resources
 		// are deleted.
 		ContinueOnEmptyResult: true,
+		AllowWasm:             r.AllowWasm,
 		Selector:              r.Selector,
 		Exclusion:             r.Exclusion,
 	}

thirdparty/kyaml/runfn/runfn.go

@@ -345,13 +345,18 @@ func (r *RunFns) defaultFnFilterProvider(spec runtimeutil.FunctionSpec, fnConfig
 			return nil, err
 		}
 	}
-	var fltr *runtimeutil.FunctionFilter
+	fltr := &runtimeutil.FunctionFilter{
+		FunctionConfig: fnConfig,
+		DeferFailure:   spec.DeferFailure,
+	}
 	fnResult := &fnresult.Result{
 		// TODO(droot): This is required for making structured results subpackage aware.
 		// Enable this once test harness supports filepath based assertions.
 		// Pkg: string(r.uniquePath),
 	}
 	if spec.Container.Image != "" {
+		fnResult.Image = spec.Container.Image
+
 		// If AllowWasm is true, we try to use the image field as a wasm image.
 		// TODO: we can be smarter here. If the image doesn't support wasm/js platform,
 		// it should fallback to run it as container fn.
@@ -382,16 +387,13 @@ func (r *RunFns) defaultFnFilterProvider(spec runtimeutil.FunctionSpec, fnConfig
 					AllowMount: true,
 				},
 			}
-			fltr = &runtimeutil.FunctionFilter{
-				Run:            c.Run,
-				FunctionConfig: fnConfig,
-				DeferFailure:   spec.DeferFailure,
-			}
-			fnResult.Image = spec.Container.Image
+			fltr.Run = c.Run
 		}
 	}
 
 	if spec.Exec.Path != "" {
+		fnResult.ExecPath = r.OriginalExec
+
 		if r.AllowWasm && strings.HasSuffix(spec.Exec.Path, ".wasm") {
 			wFn, err := fnruntime.NewWasmFn(&fnruntime.FsLoader{Filename: spec.Exec.Path})
 			if err != nil {
@@ -404,12 +406,7 @@ func (r *RunFns) defaultFnFilterProvider(spec runtimeutil.FunctionSpec, fnConfig
 				Args:     r.ExecArgs,
 				FnResult: fnResult,
 			}
-			fltr = &runtimeutil.FunctionFilter{
-				Run:            e.Run,
-				FunctionConfig: fnConfig,
-				DeferFailure:   spec.DeferFailure,
-			}
-			fnResult.ExecPath = r.OriginalExec
+			fltr.Run = e.Run
 		}
 	}