embedding example now also a test

go-python · sbinet · Feb 12, 2022 · Feb 7, 2022 · Feb 8, 2022 · Feb 11, 2022
commit 835e6b0067513db9e95a56fbb92f2ff3c063f566
diff --git a/.gitignore b/.gitignore
@@ -11,3 +11,4 @@ cover.out
 
 # tests
 builtin/testfile
+examples/embedding/embedding
diff --git a/examples/embedding/embedding-test-output.txt b/examples/embedding/embedding-test-output.txt
@@ -0,0 +1,18 @@
+
+Welcome to a gpython embedded example, 
+    where your wildest Go-based python dreams come true!
+
+==========================================================
+        Python 3.4 (github.com/go-python/gpython)
+        go1.17.6 on darwin amd64
+==========================================================
+
+Spring Break itinerary:
+    Stop 1:   Miami, Florida    |   7 nights
+    Stop 2:   Mallorca, Spain   |   3 nights
+    Stop 3:   Ibiza, Spain      |  14 nights
+    Stop 4:   Monaco            |  12 nights
+###  Made with Vacaton 1.0 by Fletch F. Fletcher 
+
+I bet Monaco will be the best!
+
diff --git a/examples/embedding/main_test.go b/examples/embedding/main_test.go
@@ -0,0 +1,45 @@
+package main
+
+import (
+	"bytes"
+	"os"
+	"os/exec"
+	"testing"
+)
+
+const embeddingTestOutput = "embedding-test-output.txt"
+
+func TestEmbeddedExample(t *testing.T) {
+
+	cmd := exec.Command("go", "build", ".")
+	err := cmd.Run()
+	if err != nil {
+		t.Fatalf("failed to compile embedding example: %v", err)
+	}
+
+	out := new(bytes.Buffer)
+	cmd = exec.Command("./embedding", "mylib-demo.py")
+	cmd.Stdout = out
+
+	err = cmd.Run()
+	if err != nil {
+		t.Fatalf("failed to run embedding binary: %v", err)
+	}
+
+	resetTest := false // true
+	testOutput := out.Bytes()
+	if resetTest {
+		err = os.WriteFile(embeddingTestOutput, testOutput, 0644)
+		if err != nil {
+			t.Fatalf("failed to write test output: %v", err)
+		}
+	} else {
+		mustMatch, err := os.ReadFile(embeddingTestOutput)
+		if err != nil {
+			t.Fatalf("failed read %q", embeddingTestOutput)
+		}
+		if !bytes.Equal(testOutput, mustMatch) {
+			t.Fatalf("embedded test output did not match accepted output from %q", embeddingTestOutput)
+		}
+	}
+}
Original file line number	Diff line number	Diff line change
Expand Up		@@ -11,3 +11,4 @@ cover.out

		# tests
		builtin/testfile
		examples/embedding/embedding