Migrate some e2e tests to integration tests

This moves everything that's not specifically dealing with a particular
source type into an integration test.

The test is designed to work with any target that has a container
output.
Though if/when we add support for building windows containers there will
need to be some changes since we are expecting linux specific outputs
currently.

Signed-off-by: Brian Goff <[email protected]>

docker-bake.hcl

@@ -110,9 +110,9 @@ target "test-fixture" {
     name = "test-fixture-${f}"
     matrix = {
         f = DALEC_DISABLE_NESTED == "1" ? (
-            ["http-src", "frontend", "local-context", "cmd-src-ref", "test-framework", "git-patch", "kubernetes-patch", "env-multiple-commands"]
+            ["http-src", "frontend", "local-context", "cmd-src-ref"]
          ) : (
-            ["http-src", "frontend", "local-context", "cmd-src-ref", "test-framework", "git-patch", "kubernetes-patch", "env-multiple-commands", "nested"]
+            ["http-src", "frontend", "local-context", "cmd-src-ref", "nested"]
          )
         tgt = ["mariner2/container"]
     }

test/mariner2_test.go

@@ -0,0 +1,228 @@
+package test
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/Azure/dalec"
+	gwclient "github.com/moby/buildkit/frontend/gateway/client"
+)
+
+func TestMariner2(t *testing.T) {
+	ctx := startTestSpan(baseCtx, t)
+	t.Parallel()
+
+	testDistroContainer(ctx, t, "mariner2/container")
+}
+
+func testDistroContainer(ctx context.Context, t *testing.T, buildTarget string) {
+	t.Run("container", func(t *testing.T) {
+		spec := dalec.Spec{
+			Name:        "test-container-build",
+			Version:     "v0.0.1",
+			Revision:    "1",
+			License:     "MIT",
+			Website:     "https://github.com/azure/dalec",
+			Vendor:      "Dalec",
+			Packager:    "Dalec",
+			Description: "Testing container target",
+			Sources: map[string]dalec.Source{
+				"src1": {
+					Inline: &dalec.SourceInline{
+						File: &dalec.SourceInlineFile{
+							Contents:    "#!/usr/bin/env bash\necho hello world",
+							Permissions: 0o700,
+						},
+					},
+				},
+				"src2": {
+					Inline: &dalec.SourceInline{
+						Dir: &dalec.SourceInlineDir{
+							Files: map[string]*dalec.SourceInlineFile{
+								"file1": {Contents: "file1 contents\n"},
+							},
+						},
+					},
+				},
+				"src2-patch1": {
+					Inline: &dalec.SourceInline{
+						File: &dalec.SourceInlineFile{
+							Contents: `
+diff --git a/file1 b/file1
+index 84d55c5..22b9b11 100644
+--- a/file1
++++ b/file1
+@@ -1 +1 @@
+-file1 contents
++file1 contents patched
+`,
+						},
+					},
+				},
+				"src2-patch2": {
+					Inline: &dalec.SourceInline{
+						File: &dalec.SourceInlineFile{
+							Contents: `
+diff --git a/file2 b/file2
+new file mode 100700
+index 0000000..5260cb1
+--- /dev/null
++++ b/file2
+@@ -0,0 +1,3 @@
++#!/usr/bin/env bash
++
++echo "Added a new file"
+`,
+						},
+					},
+				},
+			},
+			Patches: map[string][]dalec.PatchSpec{
+				"src2": {
+					{Source: "src2-patch1"},
+					{Source: "src2-patch2"},
+				},
+			},
+
+			Build: dalec.ArtifactBuild{
+				Steps: []dalec.BuildStep{
+					// These are "build" steps where we aren't really building things just verifying
+					// that sources are in the right place and have the right permissions and content
+					{
+						Command: "test -x ./src1",
+					},
+					{
+						Command: "./src1 | grep 'hello world'",
+					},
+					{
+						// file added by patch
+						Command: "test -x ./src2/file2",
+					},
+					{
+						Command: "grep 'Added a new file' ./src2/file2",
+					},
+					{
+						// Test that a multiline command works with env vars
+						Env: map[string]string{
+							"FOO": "foo",
+							"BAR": "bar",
+						},
+						Command: `
+echo "${FOO}_0" > foo0.txt
+echo "${FOO}_1" > foo1.txt
+echo "$BAR" > bar.txt
+`,
+					},
+				},
+			},
+
+			Artifacts: dalec.Artifacts{
+				Binaries: map[string]dalec.ArtifactConfig{
+					"src1":       {},
+					"src2/file2": {},
+					// These are files we created in the build step
+					// They aren't really binaries but we want to test that they are created and have the right content
+					"foo0.txt": {},
+					"foo1.txt": {},
+					"bar.txt":  {},
+				},
+			},
+
+			Tests: []*dalec.TestSpec{
+				{
+					Name: "Check that the binary artifacts execute and provide the expected output",
+					Files: map[string]dalec.FileCheckOutput{
+						"/usr/bin/src1": {
+							Permissions: 0o700,
+						},
+						"/usr/bin/file2": {
+							Permissions: 0o700,
+						},
+					},
+					Steps: []dalec.TestStep{
+						{
+							Command: "/usr/bin/src1",
+							Stdout:  dalec.CheckOutput{Equals: "hello world\n"},
+							Stderr:  dalec.CheckOutput{Empty: true},
+						},
+						{
+							Command: "/usr/bin/file2",
+							Stdout:  dalec.CheckOutput{Equals: "Added a new file\n"},
+							Stderr:  dalec.CheckOutput{Empty: true},
+						},
+					},
+				},
+				{
+					Name: "Check that multi-line command (from build step) with env vars propagates env vars to whole command",
+					Files: map[string]dalec.FileCheckOutput{
+						"/usr/bin/foo0.txt": {CheckOutput: dalec.CheckOutput{StartsWith: "foo_0\n"}},
+						"/usr/bin/foo1.txt": {CheckOutput: dalec.CheckOutput{StartsWith: "foo_1\n"}},
+						"/usr/bin/bar.txt":  {CheckOutput: dalec.CheckOutput{StartsWith: "bar\n"}},
+					},
+				},
+			},
+		}
+
+		testEnv.RunTest(ctx, t, func(ctx context.Context, gwc gwclient.Client) (*gwclient.Result, error) {
+			sr := newSolveRequest(withSpec(ctx, t, &spec), withBuildTarget(buildTarget))
+
+			sr.Evaluate = true
+			res, err := gwc.Solve(ctx, sr)
+			if err != nil {
+				return nil, err
+			}
+
+			ref, err := res.SingleRef()
+			if err != nil {
+				return nil, err
+			}
+
+			var outErr error
+
+			if err := validateFilePerms(ctx, ref, "/usr/bin/src1", 0o700); err != nil {
+				outErr = errors.Join(outErr, err)
+			}
+
+			if err := validateFilePerms(ctx, ref, "/usr/bin/file2", 0o700); err != nil {
+				outErr = errors.Join(outErr, err)
+			}
+
+			// Make sure the test framework was actually executed by the build target.
+			// This appends a test case so that is expected to fail and as such cause the build to fail.
+			spec.Tests = append(spec.Tests, &dalec.TestSpec{
+				Name: "Test framework should be executed",
+				Steps: []dalec.TestStep{
+					{Command: "/bin/sh -c 'echo this command should fail; exit 42'"},
+				},
+			})
+
+			sr = newSolveRequest(withSpec(ctx, t, &spec), withBuildTarget(buildTarget))
+			sr.Evaluate = true
+			if _, err := gwc.Solve(ctx, sr); err == nil {
+				outErr = errors.Join(outErr, fmt.Errorf("expected test spec to run with error but got none"))
+			}
+
+			if outErr != nil {
+				return nil, outErr
+			}
+
+			return gwclient.NewResult(), nil
+		})
+	})
+}
+
+func validateFilePerms(ctx context.Context, ref gwclient.Reference, p string, expected os.FileMode) error {
+	stat, err := ref.StatFile(ctx, gwclient.StatRequest{Path: p})
+	if err != nil {
+		return err
+	}
+
+	actual := os.FileMode(stat.Mode).Perm()
+	if actual != expected {
+		return fmt.Errorf("expected mode %O, got %O", expected, actual)
+	}
+	return nil
+}