msitools: add tests for all executables

Closes Homebrew/homebrew#28088.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/msitools.rb

@@ -26,6 +26,66 @@ class Msitools < Formula
   end
 
   test do
-    system "msiinfo", "--help"
+    # wixl-heat: make an xml fragment
+    IO.popen("#{bin}/wixl-heat --prefix test", "w+") do |pipe|
+      pipe.close_write
+      assert pipe.read.include?("<Fragment>")
+    end
+
+    # wixl: build two installers
+    1.upto(2) do |i|
+      (testpath/"test#{i}.txt").write "abc"
+      (testpath/"installer#{i}.wxs").write <<-EOS.undent
+        <?xml version="1.0"?>
+        <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
+           <Product Id="*" UpgradeCode="DADAA9FC-54F7-4977-9EA1-8BDF6DC73C7#{i}"
+                    Name="Test" Version="1.0.0" Manufacturer="BigCo" Language="1033">
+              <Package InstallerVersion="200" Compressed="yes" Comments="Windows Installer Package"/>
+              <Media Id="1" Cabinet="product.cab" EmbedCab="yes"/>
+
+              <Directory Id="TARGETDIR" Name="SourceDir">
+                 <Directory Id="ProgramFilesFolder">
+                    <Directory Id="INSTALLDIR" Name="test">
+                       <Component Id="ApplicationFiles" Guid="52028951-5A2A-4FB6-B8B2-73EF49B320F#{i}">
+                          <File Id="ApplicationFile1" Source="test#{i}.txt"/>
+                       </Component>
+                    </Directory>
+                 </Directory>
+              </Directory>
+
+              <Feature Id="DefaultFeature" Level="1">
+                 <ComponentRef Id="ApplicationFiles"/>
+              </Feature>
+           </Product>
+        </Wix>
+      EOS
+      system "#{bin}/wixl -o installer#{i}.msi installer#{i}.wxs"
+      assert File.exist?("installer#{i}.msi")
+    end
+
+    # msidiff: diff two installers
+    lines = `#{bin}/msidiff --list installer1.msi installer2.msi 2>/dev/null`.split("\n")
+    assert_equal 0, $?.exitstatus
+    assert_equal "-Program Files/test/test1.txt", lines[-2]
+    assert_equal "+Program Files/test/test2.txt", lines[-1]
+
+    # msiinfo: show info for an installer
+    out = `#{bin}/msiinfo suminfo installer1.msi`
+    assert_equal 0, $?.exitstatus
+    assert out.include?("Author: BigCo")
+
+    # msiextract: extract files from an installer
+    mkdir "files"
+    system "#{bin}/msiextract --directory files installer1.msi"
+    assert_equal (testpath/"test1.txt").read,
+                 (testpath/"files/Program Files/test/test1.txt").read
+
+    # msidump: dump tables from an installer
+    mkdir "idt"
+    system "#{bin}/msidump --directory idt installer1.msi"
+    assert File.exist?("idt/File.idt")
+
+    # msibuild: replace a table in an installer
+    system "#{bin}/msibuild installer1.msi -i idt/File.idt"
   end
 end