public void MissingDependenciesAreIgnored()
{
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("x", "1.0"));
var walker = new DependencyWalker(new[] { testProvider });
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
AssertDependencies(testProvider.Dependencies, that => that
.Needs("a", "1.0"));
}
public void NestedGraphCanBeWalked()
{
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("b", "1.0").Needs("c", "1.0"))
.Package("b", "1.0", that => that.Needs("c", "1.0").Needs("d", "1.0"))
.Package("c", "1.0")
.Package("d", "1.0");
var walker = new DependencyWalker(new[] { testProvider });
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
AssertDependencies(testProvider.Dependencies, that => that
.Needs("a", "1.0")
.Needs("b", "1.0")
.Needs("c", "1.0")
.Needs("d", "1.0"));
}
public void HigherDisputedDependencyWins()
{
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("b", "1.0").Needs("c", "1.0"))
.Package("b", "1.0", that => that.Needs("x", "1.0"))
.Package("c", "1.0", that => that.Needs("x", "2.0"))
.Package("x", "1.0")
.Package("x", "2.0");
var walker = new DependencyWalker(new[] { testProvider });
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
AssertDependencies(testProvider.Dependencies, that => that
.Needs("a", "1.0")
.Needs("b", "1.0")
.Needs("c", "1.0")
.Needs("x", "2.0"));
}
public void NearestDependencyVersionWins()
{
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("b", "1.0").Needs("c", "1.0").Needs("x", "1.0"))
.Package("b", "1.0", that => that.Needs("x", "2.0"))
.Package("c", "1.0", that => that.Needs("x", "2.0"))
.Package("x", "1.0")
.Package("x", "2.0");
var walker = new DependencyWalker(new[] { testProvider });
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
testProvider.Dependencies.ShouldBe(Dependencies(that => that
.Needs("a", "1.0")
.Needs("b", "1.0")
.Needs("c", "1.0")
.Needs("x", "1.0")
));
}
public void RejectedDependenciesToNotCarryConstraints()
{
// a1->b1-*d1->e2->x2
// a1->c1->d2
// a1->c1->e1->x1
// * b1->d1 lower than c1->d2 so d1->e2->x2 are n/a
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("b", "1.0").Needs("c", "1.0"))
.Package("b", "1.0", that => that.Needs("d", "1.0"))
.Package("c", "1.0", that => that.Needs("d", "2.0").Needs("e", "1.0"))
.Package("d", "1.0", that => that.Needs("e", "2.0"))
.Package("d", "2.0")
.Package("e", "1.0", that => that.Needs("x", "1.0"))
.Package("e", "2.0", that => that.Needs("x", "2.0"))
.Package("x", "1.0")
.Package("x", "2.0")
.Package("g", version: null);
var walker = new DependencyWalker(new[] { testProvider });
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
// the d1->e2->x2 line has no effect because d2 has no dependencies,
AssertDependencies(testProvider.Dependencies, that => that
.Needs("a", "1.0")
.Needs("b", "1.0")
.Needs("c", "1.0")
.Needs("d", "2.0")
.Needs("e", "1.0")
.Needs("x", "1.0"));
}
public void RecursiveDependenciesAreNotFollowed()
{
var testProvider = new TestDependencyProvider()
.Package("a", "1.0", that => that.Needs("b", "1.0"))
.Package("b", "1.0", that => that.Needs("c", "1.0"))
.Package("c", "1.0", that => that.Needs("d", "1.0").Needs("b", "1.0"))
.Package("d", "1.0", that => that.Needs("b", "1.0"));
var walker = new DependencyWalker(new[] { testProvider });
Assert.Throws<InvalidOperationException>(() =>
{
walker.Walk("a", new SemanticVersion("1.0"), VersionUtility.ParseFrameworkName("net45"));
});
}