Merge pull request #10 from matsuyoshi30/add-tests

Add tests

.github/workflows/test.yaml

@@ -0,0 +1,32 @@
+name: test
+on:
+  push:
+    branches:
+    - master
+    paths-ignore:
+    - 'README.md'
+    - '.github/'
+  pull_request:
+    branches:
+    - master
+    paths-ignore:
+    - 'README.md'
+    - '.github/'
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.16.x]
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Build
+      run: go build
+    - name: Test
+      run: make test

Makefile

@@ -4,11 +4,13 @@ GOCLEAN=$(GOCMD) clean
 GOTEST=$(GOCMD) test
 BINARY_NAME=germanium
 
-all: test build
+all: build test
 build:
 	$(GOBUILD) -o $(BINARY_NAME) -v
-test:
+test: build
 	$(GOTEST) -v ./...
+gentest:
+	$(GOTEST) -gen_golden_files ./...
 clean:
 	$(GOCLEAN)
 	rm -f $(BINARY_NAME)

main_test.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"flag"
+	"image"
+	"image/png"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"reflect"
+	"strings"
+	"testing"
+)
+
+var genGoldenFiles = flag.Bool("gen_golden_files", false, "whether to generate the golden files fot test")
+
+func TestRun(t *testing.T) {
+	filepath.Walk("./testdata", func(path string, info os.FileInfo, err error) error {
+		if strings.HasSuffix(path, ".sh") {
+			cmd := exec.Command("bash", filepath.Base(path))
+			cmd.Dir = filepath.Dir(path)
+			if err := cmd.Run(); err != nil {
+				t.Errorf("FAIL: %v\n", err)
+			} else {
+				filename := strings.TrimSuffix(path, filepath.Ext(path))
+				if *genGoldenFiles {
+					if err := os.Rename(filename+"-gen.png", filename+".png"); err != nil {
+						t.Errorf("FAIL: %v\n", err)
+					}
+					t.Logf("Generate file: %s\n", filename+"-want.png")
+					return nil
+				}
+
+				wantFile := filename + ".png"
+				want, err := os.Open(wantFile)
+				if err != nil {
+					t.Errorf("FAIL: Reading want file: %s", wantFile)
+				}
+				wantImg, err := png.Decode(want)
+				if err != nil {
+					t.Errorf("FAIL: Decoding want file: %s", wantFile)
+				}
+
+				gotFile := filename + "-gen.png"
+				got, err := os.Open(gotFile)
+				if err != nil {
+					t.Errorf("FAIL: Reading got file: %s", gotFile)
+				}
+				gotImg, err := png.Decode(got)
+				if err != nil {
+					t.Errorf("FAIL: Decoding got file: %s", gotFile)
+				}
+
+				if reflect.DeepEqual(wantImg.(*image.RGBA), gotImg.(*image.RGBA)) {
+					t.Logf("PASS: %s\n", path)
+				} else {
+					t.Errorf("FAIL: output differs: %s\n", path)
+				}
+
+				if err := os.Remove(gotFile); err != nil {
+					t.Errorf("FAIL: cleanup got file: %s\n", path)
+				}
+			}
+		}
+		return nil
+	})
+}

testdata/default.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+../germanium main.go -o default-gen.png

testdata/no-line-num.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+../germanium --no-line-number main.go -o no-line-num-gen.png

testdata/no-window-access-bar.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+../germanium --no-window-access-bar main.go -o no-window-access-bar-gen.png

testdata/only-editor.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+../germanium --no-line-number --no-window-access-bar main.go -o only-editor-gen.png